Relevant bibliographies by topics / Flume Tank

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  2. Dissertations / Theses
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Academic literature on the topic 'Flume Tank'

Author: Grafiati
Published: 20 February 2023

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Journal articles on the topic "Flume Tank"

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Yan, Jun, Litao Zhang, Linjuan Xu, Sainan Chen, Guanghong Peng, and Meng Wang. "Three-Dimensional Numerical Simulation of Flow Structure in Annular Flume Based on CFD Study of Water." Water 15, no. 4 (February 7, 2023): 651. http://dx.doi.org/10.3390/w15040651.

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The annular flume is an ideal hydrodynamic test device for studying river sediment, and it has been widely used in recent years to study the movement patterns of sediment and other particulate matter. Annular flumes have made outstanding contributions to research in fields related to sediment transport and the diffusion and migration of pollutants. The existence of circumfluence structures in annular flumes leads to complex and variable flow structures. To obtain a more stable and controllable water flow structure, a sophisticated three-dimensional mathematical model based on the Fluent software was established to study the development law of water flow structure in the flume by changing the size of the annular flume speed ratio. The results show the following: (1) The overall trend of the simulation results basically matched with the measured results; the average relative error was 3.54% and the Nash efficiency coefficient was 0.9934, close to 1. The model calculation data were highly credible. (2) The axial flow velocity of the water tank gradually showed a “U”-shape distribution with the increase in the speed ratio. (3) When the speed ratio was R ≤ 0.17 (where the speed ratio R refers to the ratio of annular groove to shear ring speed), there was only one vortex in the tank; when the speed ratio was R > 0.17, there were multiple vortices in the tank, and the flow pattern was more complicated. (4) When the rotational speed ratio R = 0.28, the secondary flow intensity of the annular flume reached the lowest point, which was only 39.28% of the secondary flow intensity of the conventional annular flume. (5) It was determined that the annular flume water flow structure was most stable and controllable when the rotational speed ratio R = 0.24. The results of the study can provide a further theoretical basis for research on sediment dynamics and its related fields conducted by applying an annular flume.
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TOMÁS-CALLEJAS, ALEJANDRO, GABRIELA LÓPEZ-VELASCO, ANGELA M. VALADEZ, ADRIAN SBODIO, FRANCISCO ARTÉS-HERNÁNDEZ, MICHELLE D. DANYLUK, and TREVOR V. SUSLOW. "Evaluation of Current Operating Standards for Chlorine Dioxide in Disinfection of Dump Tank and Flume for Fresh Tomatoes†." Journal of Food Protection 75, no. 2 (February 1, 2012): 304–13. http://dx.doi.org/10.4315/0362-028x.jfp-11-347.

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Standard postharvest unit operations that rely on copious water contact, such as fruit unloading and washing, approach the criteria for a true critical control point in fresh tomato production. Performance data for approved sanitizers that reflect commercial systems are needed to set standards for audit compliance. This study was conducted to evaluate the efficacy of chlorine dioxide (ClO2) for water disinfection as an objective assessment of recent industry-adopted standards for dump tank and flume management in fresh tomato packing operations. On-site assessments were conducted during eight temporally distinct shifts in two Florida packinghouses and one California packinghouse. Microbiological analyses of incoming and washed fruit and dump and flume system water were evaluated. Water temperature, pH, turbidity, conductivity, and oxidation-reduction potential (ORP) were monitored. Reduction in populations of mesophilic and coliform bacteria on fruit was not significant, and populations were significantly higher (P < 0.05) after washing. Escherichia coli was near the limit of detection in dump tanks but consistently below the detection limit in flumes. Turbidity and conductivity increased with loads of incoming tomatoes. Water temperature varied during daily operations, but pH and ORP mostly remained constant. The industry standard positive temperature differential of 5.5°C between water and fruit pulp was not maintained in tanks during the full daily operation. ORP values were significantly higher in the flume than in the dump tank. A positive correlation was found between ORP and temperature, and negative correlations were found between ORP and turbidity, total mesophilic bacteria, and coliforms. This study provides in-plant data indicating that ClO2 can be an effective sanitizer in flume and spray-wash systems, but current operational limitations restrict its performance in dump tanks. Under current conditions, ClO2 alone is unlikely to allow the fresh tomato industry to meet its microbiological quality goals under typical commercial conditions.
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Didier, Eric, Paulo R. F. Teixeira, and Maria Graça Neves. "A 3D Numerical Wave Tank for Coastal Engineering Studies." Defect and Diffusion Forum 372 (March 2017): 1–10. http://dx.doi.org/10.4028/www.scientific.net/ddf.372.1.

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This paper presents the validation of active and passive, made by a dissipation beach, numerical absorbing methods implemented in RANS-VOF FLUENT® code for modelling long time series of wave propagation interacting with coastal structures. Verification of both numerical techniques was performed in 2D – wave flume, and 3D – wave tank, this one using a multiple active absorption wave makers. The active absorption wave maker allows maintaining the incident wave generation and the mean water level along the time. Good results were obtained for 2D and 3D applications for active absorption wave maker at the generation boundary and both numerical beach and active absorption at the end of the flume/tank.
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Stewart, P. A. M., and R. S. T. Ferro. "Measurements on gill nets in a flume tank." Fisheries Research 3 (January 1985): 29–46. http://dx.doi.org/10.1016/0165-7836(85)90006-2.

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Winger, Paul D., Harold DeLouche, and George Legge. "Designing and Testing New Fishing Gears: The Value of a Flume Tank." Marine Technology Society Journal 40, no. 3 (September 1, 2006): 44–49. http://dx.doi.org/10.4031/002533206787353240.

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Increasing regulations, bycatch restrictions, and concerns over ecosystem impact are now the driving forces for much of the development in fishing gear design occurring world-wide. Industry, government, and universities have responded to these challenges with major advancements in computer aided design, simulation, physical modeling techniques, and world-class testing facilities. Model studies are a critical step in the development of new fishing gears and flume tanks are the de facto standard for investigating their attributes and performance under controlled conditions. This paper discusses the nature of flume tanks, their attributes, as well as the science and art of building and testing scale models of fishing gear.
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Waniewski, T. A., C. E. Brennen, and F. Raichlen. "Bow Wave Dynamics." Journal of Ship Research 46, no. 01 (March 1, 2002): 1–15. http://dx.doi.org/10.5957/jsr.2002.46.1.1.

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Experimental studies of air entrainment by breaking waves are essential for advancing the understanding of these flows and creating valid models. The present study used experimental simulations of a ship bow wave to examine its dynamics and air entrainment processes. The simulated waves were created by a deflecting plate mounted at an angle in a supercritical free-surface flow in a flume. Measurements of the bow wave geometry at two scales and also for a bow wave created by a wedge in a towing tank are presented. Contact line and bow wave profile measurements from the different experiments are compared and demonstrate the similarity of the flume simulations to the towing tank experiments. The bow wave profile data from the towing tank experiments were used to investigate the scaling of the wave with the flow and the dependence on geometric parameters. In addition, surface disturbances observed on the plunging wave are documented herein because of the role they play in air entrainment. The air entrainment itself is explored in Waniewski et al (2001).
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ESTEBAN ALCALA, GUSTAVO ADOLFO, ASIER VAZQUEZ CLEMENTE, IÑIGO ALBAINA-LOPEZ DE ARMENTIA, URKO IZQUIERDO EREÑO, ALBERTO PEÑA BANDRES, JESUS MARIA BLANCO ILZARBE, and IÑIGO BIDAGUREN DIEGO. "EXPERIMENTAL STUDY OF REFLECTION IN A PARABOLIC WAVE DISSIPATION SYSTEM FOR A 2D WAVE FLUME." DYNA 96, no. 1 (March 1, 2021): 159–65. http://dx.doi.org/10.6036/9877.

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In the field of experimental tests in 2D wave tanks, it is of vital importance to know the reflection generated by the structures responsible for dissipating the waves that reach the end of the installation. The field of application of this type of tanks is wide and is generally directly related to technology, structures, and, in general, systems that perform their functions in the sea environment. During the process of validating the behavior of these systems, scale models of the prototypes are usually tested in wave tanks, minimizing the influence of the waves reflected in the physical limits of the tank itself. In this regard, the present work has characterized the phenomenon of dissipation and reflection of the incident wave on a mobile solid structure placed at one end of a 2D wave tank, defining the dependence of the dissipation and reflection phenomenon for each typology. wave (heights and periods) and the geometric arrangement of the solid surface. The experimental work contains a total of 256 individual tests, where the interaction of 8 monochromatic waves with different height, period, wavelength and depth has been characterized. These waves have interacted with 10 beach positions with different inclination angles (between 8 and 26º). For all the cases, the reflection coefficient has been extracted from the envelope curve resulting from the superposition of the incident wave and the reflected wave in the structure. The result of the study provides optimal inclination positions of the parabolic absorption system that minimize the reflection coefficient. The results are expressed as a function of the properties of the incident waves and on the corresponding Iribarren dimensionless number.
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Mellibovsky, Fernando, Joana Prat, Emilio Notti, and Antonello Sala. "Otterboard hydrodynamic performance testing in flume tank and wind tunnel facilities." Ocean Engineering 149 (February 2018): 238–44. http://dx.doi.org/10.1016/j.oceaneng.2017.12.034.

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Wulandana, Rachmadian. "Open Water Flume for Fluid Mechanics Lab." Fluids 6, no. 7 (July 3, 2021): 242. http://dx.doi.org/10.3390/fluids6070242.

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Open water flume tanks with closed-loop circulation driven by centrifugal pumps are essential for hydro experimentation in academic settings as well as research centers. The device is also attractive due to its versatility and easy-to-maintain characteristics. Nevertheless, commercial open flume systems can be expensive and become less prioritized in engineering schools. This paper describes the design and fabrication of an affordable, medium-size water flume tank, suitable for education purposes. The central piece of the system is a transparent observation chamber where fluid experiments are typically conducted and observed. The expected maximum average water speed in the observation chamber of about 60 cm per second was achieved by the inclusion of a 3 hp centrifugal pump. The size and capacity of the current design were constrained by space limitation and available funds. The educational facility was assigned as a two-semester multi-disciplinary capstone senior design project incorporating students and faculty of mechanical, electrical, and computer engineering programs in our campus. The design process provides a training platform for skills in the area of Computer Aided Designs (CAD), Finite Element Analysis (FEA), Computational Fluid Dynamics (CFD), manufacturing, and experimentation. The multi-disciplinary project has contributed to the improvement of soft skills, such as time management, team working, and professional presentation, of the team members. The total material cost of the facility was less than USD 6000, which includes the pump and its variable frequency driver. The project was made possible due to the generous sponsor of the Vibration Institute.
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Sasmita, Suparman, Sulaeman Martasuganda, and Ari Purbayanto. "Perancangan Model untuk Pengujian Desain dan Konstruksi Cantrang Pantai Utara Jawa (Model Engineering for Testing The Design and Construction of Cantrang North Coast of Java)." Marine Fisheries : Journal of Marine Fisheries Technology and Management 4, no. 1 (October 19, 2013): 51. http://dx.doi.org/10.29244/jmf.4.1.51-57.

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<p class="MsoNormal" style="margin-bottom: 6pt; text-align: justify; text-indent: 1cm;"><span style="font-size: 10pt;">Pengamatan alat tangkap umumnya dilakukan pada skala lapang bersamaan dengan operasi penangkapan.<span> </span>Permasalahan yang muncul pada saat pengamatan dapat diatasi, dengan melakukan pengamatan alat berskala laboratorium.<span> </span>Pengujian tersebut membutuhkan model alat tangkap yang dirancang untuk diujikan pada skala laboratorium. Model cantrang dibuat berdasarkan data desain dan konstruksi cantrang nelayan Brondong, Jawa Timur yang berukuran panjang total 53,16 meter. Metode perancangan model dibuat dibuat menggunakan perbandingan 1:30 pada seluruh bagian cantrang. Pengujian dilakukan pada Laboratorium <em>flume tank </em>pada dua kecepatan berbeda. Hasil pengamatan menunjukkan bahwa kecepatan pertama bukaan mulut jaring berbentuk bulat dengan tinggi antara 22 hingga 24 cm, dan pada kecepatan 2 berbentuk oval dengan tinggi mulut berukuran 15 hingga 18 cm.</span></p><strong><span style="font-size: 10pt;">Kata kunci:</span></strong><span style="font-size: 10pt;">cantrang, perancangan,<em> flume tank,</em> model</span>
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Dissertations / Theses on the topic "Flume Tank"

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Ur, Rehman Obaid. "Multi-Task Convolutional Learning for Flame Characterization." Thesis, Linköpings universitet, Statistik och maskininlärning, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-166054.

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This thesis explores multi-task learning for combustion flame characterization i.e to learn different characteristics of the combustion flame. We propose a multi-task convolutional neural network for two tasks i.e. PFR (Pilot fuel ratio) and fuel type classification based on the images of stable combustion. We utilize transfer learning and adopt VGG16 to develop a multi-task convolutional neural network to jointly learn the aforementioned tasks. We also compare the performance of the individual CNN model for two tasks with multi-task CNN which learns these two tasks jointly by sharing visual knowledge among the tasks. We share the effectiveness of our proposed approach to a private company’s dataset. To the best of our knowledge, this is the first work being done for jointly learning different characteristics of the combustion flame.

This wrok as done with Siemens, and we have applied for a patent which is still pending.

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Anaia, Grazielle de Campos. "Determinação de íons metálicos por FI-FAAS após separação e concentração em fase sólida: avaliação crítica de adsorventes." Universidade de São Paulo, 2008. http://www.teses.usp.br/teses/disponiveis/46/46133/tde-19052008-150321/.

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Um procedimento de separação e pré-concentração em sistemas de análises em fluxo acoplado a espectrometria de absorção atômica com atomização em chama (FI-FAAS) é proposto para a determinação de Cu(II), Ni(II) e Cd(II). Diferentes adsorventes (XAD-7, sílica-gel e sílica funcionalizada C18) foram avaliados para a imobilização do reagente 1-(2-tiazolilazo)-2-naftol (TAN) que forma complexos com diversos íons metálicos. A avaliação e seleção do adsorvente baseou-se em isotermas de adsorção (Langmuir, Freundlich e Dubinin- Radushkevich (D-R)) e estudos de dessorção. O modelo de Langmuir indicou que a -2 -1 sílica-gel adsorve uma quantidade maior de TAN (1,81±0,08)x10-2 g g-1 em relação à XAD-7 (4,05±0,51)x10-3 g g-1 e à sílica funcionalizada C18 1,58x10-2 g g-1 . Pelo modelo de Freundlich, foi verificado que a superfície da XAD-7 apresenta elevada heterogeneidade energética dos sítios de adsorção evidenciado pelo parâmetro n de 2,57±0,08 contra 1,01±0,02 para sílica-gel. A constante de Freundlich foi de -1 (0,232±0,023) e (2,27±0,59) g g-1 para XAD-7 e sílica-gel, respectivamente. O modelo de D-R revelou que ocorre fisissorção para ambos os adsorventes. Estudos de dessorção permitiram concluir que a XAD-7 modificada apresentou a menor massa de TAN dessorvida em comparação com a sílica-gel, nas condições de acidez a serem empregadas nas etapas de retenção e eluição dos íons metálicos. Desta forma, XAD-7 imobilizada com o TAN foi selecionada para pré-concentração dos metais no sistema de análises em fluxo. Utilizando um amostrador temporizado eletronicamente, as variáveis vazão e concentração do eluente, pH de retenção, vazão e tempo de pré-concentração da amostra foram avaliadas. Na etapa de amostragem, os íons metálicos foram pré-concentrados por 300 s na forma de complexos com o TAN, empregando vazão de amostra de 6,2 mL min-1 e pH 7,5. A eluição foi efetuada com 0,2 mol L-1 HNO3 e vazão de 6,2 mL min-1 . O limite de detecção e o fator de enriquecimento foram estimados em 0,20 µg L-1 e 68; 1,5 µg L-1 e 15 e 0,060 µg L-1 e 44 para Cu(II), Ni(II) e Cd(II), respectivamente. Os coeficientes de variação foram estimados em 3,2%, 5,6% e 3,6% para Cu(II), Ni(II) e Cd(II), respectivamente. O procedimento proposto para FI não é adequado para a pré-concentração de metais em amostras contendo altas concentrações de íons cloreto, devido à formação de cloro-complexos, que prejudicam a formação de complexos com TAN na fase sólida.
A flow-based procedure for separation and preconcentration coupled to flame atomic absorption spectrometry (FI-FAAS) is proposed for determination of Cu(II), Ni(II) e Cd(II). Different sorbents (XAD-7, silica gel and C18 bonded silica) were evaluated for the immobilization of the reagent 1-(2-thiazolylazo)-2-naphthol (TAN), which reacts with several metal ions yielding complexes. The evaluation and selection of the adsorbent was based on adsorption isotherms (Langmuir, Freundlich and Dubinin-Radushkevich (D-R)) as well as desorption studies. The Langmuir model indicated that silica gel uptakes higher amount of TAN (1.81±0.08)x10-2 g g-1 as compared to (4.05±0.51)x10-3 g g-1 for XAD-7 and (1.58x10-2 ) g g-1 for C18 bonded silica. Based on the Freundlich model, it was verified that XAD-7 surface presented high energetic heterogeneity of the adsorption sites evidenced by the parameter n of 2.57±0.08 against 1.01±0.02 to silica gel. The Freundlich constant was 0.232±0.023 -1 and 2.27±0.59 g g-1 for XAD-7 and silica gel, respectively. The D-R model revealed that physical sorption occurred for both adsorbents. The modified XAD-7 showed the lowest desorbed mass in comparison to silica gel, in the same acidity conditions employed for retention and eluting steps of the metal ions. XAD-7 modified with TAN was thus selected to concentrate metal ions in the flow system. Using a time-based sample loading, the variables like eluent flow rate and concentration; pH in the retention step, sample flow rate and loading sample time were investigated. In the sampling step, the metal ions were preconcentrated for 300 s in the form of TAN complexes, employing a sample flow rate of 6.2 mL min-1 and pH 7.5. The elution was carried out with 0.2 mol L-1 HNO3 and flow rate of 6.2 mL min-1 . The detection limits and enrichment factors were estimated as 0.2 µg L-1 and 68; 1.5 µg L-1 and 15 and 0.060 µg L-1 and 44 for Cu(II), Ni(II) and Cd(II), respectively. The coefficients of variation were estimated as 3.2%, 5.6% and 3.6% for Cu(II), Ni(II) and Cd(II), respectively. The proposed procedure is not appropriate for the preconcentration of metals in samples containing high chlorides concentrations due to the formation of chloride-complexes that hinder the formation of the TAN-complexes on the solid phase.
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Suprapto. "Étude et analyse de l'oxydation par l'ozone d'un effluent gazeux contenant de l'orthoxylène dans un réacteur gaz-liquide mécaniquement agité." Vandoeuvre-les-Nancy, INPL, 1995. http://www.theses.fr/1995INPL025N.

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Dans le but d'épurer un effluent gazeux contenant des teneurs faibles en orthoxylène, nous étudions un procédé chimique de traitement par l'ozone à température ambiante et sous la pression atmosphérique. L’air chargé en orthoxylène et l'oxygène ozone sont introduits séparément en continu dans un réacteur gaz-liquide mécaniquement agité. Le transfert de matière gaz-liquide spécifique du réacteur est étudié en déterminant d'une part le coefficient de transfert volumique partiel kLa par oxygénation dynamique de la phase liquide et d'autre part le coefficient de transfert volumique global KLa par traçage du gaz lors de l'absorption physique de l'orthoxylène dans l'eau. À partir de ces mesures, on peut estimer les coefficients de transfert volumiques kGa et KGa. La transformation chimique conduit à l'obtention de plusieurs produits non toxiques susceptibles d'être à leur tour oxydés en deux produits ultimes: l'anhydride carbonique et l'acide acétique. L’étude expérimentale portant sur l'influence de divers paramètres opératoires (concentrations des réactifs, vitesse d'agitation, débit d'air supplémentaire, température, pH du milieu réactionnel) montre que les réactions primaires ont lieu essentiellement dans le film liquide au contact des bulles d'oxygène ozone. Par suite, les étapes primaires sont limitées par le transfert gaz-liquide de l'ozone. Des améliorations du procédé ont été envisagées: en utilisant un système biphasique eau solvant fluorocarbone, en opérant en milieu aqueux en présence d'un catalyseur solide (charbon actif), enfin en stimulant la réaction par des rayonnements UV en présence ou non d'un photocatalyseur (TiO2). Les améliorations observées sont faibles et les résultats confirment le rôle prépondérant de la limitation du transfert de l'ozone sur la transformation de l'orthoxylène
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Müller, Jan. "Kondenzační technika a odvody spalin." Master's thesis, Vysoké učení technické v Brně. Fakulta stavební, 2014. http://www.nusl.cz/ntk/nusl-226844.

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This thesis is developed as a proposal for heating for a primary school and kindergarten in the region of Brno-countryside. For the insulated building, a combination of heating and air-conditioning is proposed. The concept is designed so that the air-conditioning preheats the exterior air and the heating system warms the incoming air to a comfortable temperature. For the required thermal performance, sources of heat (for gas and pellets) and a layout solution for the boiler room is designed. Drainage of combustion products is proposed for both solutions. The project solution is per the extent of the construction permit. The theoretical part is linked with the practical part through the condensation boilers, their function and division, and drainage of combustion products. The experiment for the given topic was conducted on the drainage of combustion products. The pressure loss of the reverse knob was determined in relation to the flow rate of air in the condensation boilers as this loss is essential in assessing the drainage of combustion products.
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McLaren, RWG. "Investigation of hydrodynamic forces on articulated concrete block mattresses in fluid flow from various horizontal directions." Thesis, 2019. https://eprints.utas.edu.au/33960/1/McLaren_whole_thesis.pdf.

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This thesis investigates the optimisation of hydrodynamic stability for Articulated Concrete Mattress (ACM), to improve the cost efficiency of ACMs currently used in industry and enhance ACM stability calculations. ACMs are mainly deployed for subsea structure stabilisation and scour protection. They are most commonly used for subsea pipelines, but are also used in a range of other offshore and coastal applications. ACMs are currently sized in industry using roughly estimated hydrodynamic coefficients and large safety factors to account for the uncertainty in the coefficients. The large safety factors cause drastically increased stability requirements and therefore increase the required cost for each mattress. The aim of this thesis is to decrease the required safety factors by investigating the hydrodynamics of ACMs using novel investigation methods to find more accurate coefficients for industry stability calculations. This thesis also compares various existing block types to determine how variations in ACM block shape affect hydrodynamic stability. Additionally, this thesis will recommend shape optimisations to increase mattress stability and therefore increase cost efficiency. The most effective method for investigating hydrodynamic coefficients is an experimental investigation using a scale model or a full-scale model. The stability of ACMs was investigated through several full-scale experimental investigations at the Australian Maritime College’s (AMC’s) Circulating Water Channel (CWC). The experimental investigations are split into three separate investigations. The first investigation determines the mattress failure location for all incident flow angles, thereby reducing the variables that are needed to be investigated in further testing. The second investigation compares several existing block types to determine their stability and allow for further optimisation of ACM block shapes and sizes. The third investigation analyses the flow around current ACMs and recommends block optimisation along with current shape strengths and weaknesses. The first two sections involve the acquisition of hydrodynamic coefficients with respect to variations in incident current angles. The experimentally acquired hydrodynamic coefficients are then input into a static stability calculation to determine the failure mechanism, location and velocity. To accurately define the failure mechanism of an ACM, the mattress failure location is first investigated. Literature shows that the leading-edge row has far lower stability than any other row of blocks within the ACM. However the failure position within the leading-edge row is not thoroughly investigated. This thesis compares the corner block to the centre block in the leading-edge, concluding that the centre block has lower stability for almost all flow angles and is therefore the earliest mattress failure location in the leading edge row. Through this comparison, further investigations are made more efficient by leaving only the centre block as the necessary point of investigation. Due to this narrowing of the subject matter, several extra ACMs could be investigated. The second stage of this thesis investigates the comparison between three different ACM block types, the 300-series, the 400-series and the 500-series, which are variations of the same base block type. While the 300 and 500-series blocks are symmetrical about the horizontal plane, the 400-series has the bottom half of the 300-series and the larger top half of the 500-series, allowing for simple comparisons between the different block types. From the investigation, it is found that the 400-series has higher stability than the heavier 500-series. Due to its size, the 500-series costs more than the 400-series. Therefore purely based on hydrodynamic stability, the 500-series is obsolete when compared to the 400-series. To improve upon the 400-series’ shape efficiency, it is important to analyse which fluid mechanisms cause the 400-series’ high stability. The third section of this thesis uses experimental and numerical investigations to analyse flow patterns around ACMs. Through these investigations it is found that the 400-series has a stable block shape due to its smaller and more streamlined bottom shell which reduces lift and its sheer top face which increases down force, thus creating an overall reduction in lift. These same factors also increase the drag component of the overturning moment. While drag force is still important, the reduction in lift has a greater effect on stability than the reduction in drag. From this thesis, it is found that an efficient block shape has higher pressures on the top shell than on the bottom shell. It is recommended that the bottom shell of the ACM be hydrodynamically optimised to achieve the most efficient increase in stability.
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Chenari, Behrang. "Numerical modelling of regular wave propagation using OpenFOAM." Master's thesis, 2014. http://hdl.handle.net/10316/39027.

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Dissertação de Mestrado em Energia para a Sustentabilidade apresentada à Faculdade de Ciências e Tecnologia da Universidade de Coimbra
Uma vez que o consumo de combustíveis fósseis provoca impactos ambientais críticos, o desenvolvimento das energias renováveis tem-se tornado uma prioridade em muitos países. Desta forma, as energias solar e do vento são comercializadas, enquanto a energia das ondas está ainda nos seus primeiros passos. A energia das ondas é uma ampla fonte de energia limpa, no entanto ainda muitas barreiras e obstáculos têm de ser ultrapassados para ser possível captar a potência real que se encontra armazenada nas ondas oceânicas. Nas décadas recentes, alguns protótipos de conversores de energia das ondas foram construídos e testados, todavia, quase todos foram destruídos passado algum tempo devido à sua incapacidade em resistir às condições adversas dos oceanos. Uma vez que os ensaios laboratoriais são bastante caros e morosos, actualmente é comum recorrer-se a simulações numéricas. Muitos investigadores desenvolveram o seu próprio tanque de ondas numérico com o intuito de avaliar o comportamento das ondas. Esta dissertação de mestrado tem como objetivo desenvolver um tanque de ondas numérico para estimar a propagação de ondas regulares e o seu comportamento na interacção com o fundo do mar, usando a aplicação waves2Foam, desenvolvida no âmbito do software OpenFOAM. Para tal, três cenários e alguns sub-cenários são definidos com base nos diferentes tipos da teoria de Stokes aplicável a ondas. Os resultados mostram que o waves2Foam é capaz de simular relativamente bem todos os tipos de rebentamento de ondas, ainda que com algumas limitações. A reflexão das ondas na fronteira de saída foi relatada em muitos estudos, pelo que a aplicação waves2Foam possui um método de absorção chamado zona de relaxamento, que impede a reflexão das ondas a partir da fronteira de saída do tanque. Finalmente, os resultados do presente estudo demonstram que o waves2Foam é uma poderosa ferramentas para simulação numérica da propagação de ondas e sua absorção. Conclui-se ainda que o OpenFOAM tem algumas limitações, como por exemplo, é incapaz de simular ondas com declive superior a 0.05, casos em que foram observados alguns problemas tais como o amortecimento da onda.
As increase in consumption of fossil fuels causes crucial environmental impacts, renewable energy development has become the priority of many countries in the world. In this way, solar and wind energies are commercialized while ocean wave energy is still in its initial steps. Wave energy is a large source of clean energy but still many barriers and obstacles must be removed in order to capture the real power stored in the ocean waves. In previous decades, several prototypes of wave energy converters have been built and tested, but, almost all of them were destroyed after a while due to their incapability in coping with the harsh condition of the oceans. As laboratory experiments are very expensive and time consuming, today, numerical simulation is commonly used. Many researchers developed their numerical wave tank in order to evaluate behaviour of waves. This master thesis aims to develop numerical wave tanks for assessing propagation of regular wave and its behaviour interacting with seabed using waves2Foam. To do so, three scenarios and some sub-scenarios are defined based on different types of Stokes wave theory. Reflection of the waves from outlet boundary was reported in many studies while waves2Foam is accompanied by an absorption method called relaxation zone which prevents reflection of the waves from outlet boundary of the numerical wave tank. Finally, the results of the present study demonstrate that waves2Foam is a powerful toolbox in numerical modelling of wave generation and absorption in numerical wave flumes and waves2Foam is capable to simulate all types of breaking waves as well. It is also concluded that, waves2Foam has some limitations, for instance, it is unable to simulate waves with steepness above 0.05 in which some problems such as damping of the wave have been observed.
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Lee, Sheue-Yng, and 李雪瑩. "Simultaneous Abstorption Of SO2 And NO From Flue Gas In A Stirred Tank Reactor With KMnO4/NaOH Solutions." Thesis, 1995. http://ndltd.ncl.edu.tw/handle/12232919909712111141.

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碩士
國立成功大學
環境工程研究所
83
The wet scrubbing combined De-SOX/NOX system is the most promising air pollution control device.Last year,our labratory has studied the individual and simultaneous absorptions of SO2 and NO by alkaline solutions of NaClO2 and NaOH,this year,we try to do advanced study by using KMnO4 and NaOH,and try to realize the absorption kinetic of SO2 and NO,also use UV and visible spectrum to know the liquid reaction. The experiment is under 50oC:the reaction tank is stirred vessel,and under the same absorption liquid and the same rpm,the contionous inlet gas is going through the batch reaction liquid,this is so called semi-batch absorption reaction.the concentration of SO2, NO,O2 is from 500-11800 ppm,300-800 ppm,0-6%,because this condition is similar to real condition. The experiment is devided into three parts:first,try to evalute the mass transter coefficient of system.second,try to know the absorption of SO2 and NO,in differentabsorbent,different temp.third,use UV and visible spectrum to understand the NO2- and NO3-. The result indicates when OH-0.1M,the absorption of SO2 is entirely gas- film controll.Acording to fast reaction theory,we could get the reactionations between NO and agueous solutions of KMnO4 is found to be 0.76 and 0.9 order,and can get the reaction constant.Add more NaOH will change the reaction rate,but wouldn' t change the order.Reaction constant is increasing with conc. of NaOH. Under 25oC,the reaction rate will decreasedand SO2 absorption rate will increase with the volum rate increase.SO2 is more competitive than NO,so when SO2 and NO is coexist,the existence of SO2 will indicate the low absorption of NO,but the existence of NO will has no effect on SO2,the existence of O2 has no significant effect on absorption of SO2 and NO.Finally, the type of NO in liquid is as NO2- and NO3-,but most are NO2-.
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CHEN, PO-YUAN, and 陳柏元. "A Study on the Development of Dadi and it’s Application in Contemporary Flute Music─Taking the Bamboo Flute Solo“Trace of Bamboo” by Tan Dun as an Example." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/s763je.

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碩士
國立臺南藝術大學
中國音樂學系碩士班
102
This study explores the history of Dadi, a newly created Chinese low-pitched bamboo flute (including Gongdi and Wan Guan Di), and compares the difference between Dadi and other traditional Chinese flutes by analyzing the special playing techniques and popular sheet music for Dadi. Comparing with traditional flutes, Dadi is closer to the human voice, easier to achieve resonance, with a broader range of tone colors, and with more expressive dynamics. To examine structure and motivation of Tan Dun’s bamboo flute solo “Trace of Bamboo”, we investigated life, works and styles of the composer and then compared different playing styles of this piece interpreted by three generations of flute players: Yu Xunfa, Chen Tao and Tang Jun Qiao. Based on two score versions and recordings of the performance of the flutists, we developed an interpretation in a way that was much closer to what the composer intended and hope it serves as a reference guide for performers who will play “Trace of Bamboo”. In the Impromptu section, we compared the tablature version with that performed by the three soloists and coupled with our interpretation, which offered more melodic variation, to create a score more in line with Tan Dun’s expression of intention. Keywords: Dadi, Gongdi, Wan Guan Di, Trace of Bamboo, Tan Dun, Yu Xunfa, Chen Tao, Tang Jun Qiao, improvise.
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Books on the topic "Flume Tank"

1

Dikshit, Giri S. Tank irrigation in Karnataka: A historical survey. Bangalore: Gandhi Sahitya Sangha, 1993.

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Ravino, Jerry. Flame Dragons of the Korean War. Paducah, KY: Turner Pub. Co., 2003.

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Ayi, Svarṇasiṃha Kē Em. Apē văven păn dōtat: Siṃhala văva piḷibandha śāstrīya vimarśanaya. Pannipiṭiya: Cāga Prakāśanaya, 2005.

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Ravino, Jerry. Hearts of iron: The epic struggle of the 1st Marine Division Flame Tank Platoon, Korean War, 1950-1953. New York, NY: Turner Pub. Co., 2011.

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Olsen, Dale A. Flutes That Talk. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252037887.003.0003.

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This chapter works with a concept that seems common in many animistic cultures, where flutes talk rather than produce music. Many flutists in European-derived cultures often refer to their instrument's sound as its “voice,” which is usually a reference to its tone color. In the jazz world, most notably with flutist (and saxophonist) Rahsaan Roland Kirk, humming into the flute while blowing it during improvisations creates very raspy tone colors. Flutist D. J. Sterling refers to his own playing/humming style as “the talking flute,” and others have imitated him. The chapter focuses on two flute techniques: imitation of speech tones on a flute and flute-speak or flute-think.
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Ravino, Jerry, and Jack Carty. Flame Dragons Of The Korean War. Turner Publishing Company (KY), 2003.

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Us Flamethrower Tanks Of World War Ii. Osprey Publishing, 2013.

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Olsen, Dale A. Flutes and the Animal Kingdom. University of Illinois Press, 2017. http://dx.doi.org/10.5406/illinois/9780252037887.003.0006.

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Animals are recurring motifs in many flute-related stories because flutes are often made from animal bones, flutists are often hunters of animals, animals are often protectors and helpers of flute-playing humans, they are often messengers of the gods, and so on. This chapter presents stories about relationships between human flutists and animals. Many of the flutetales are also about flute-playing animals, which are often anthropomorphized: They talk, live in villages, have wives and children, and sometimes play musical instruments. Some of these types of folktales and myths are examples to which the concept or theory of “indigenous perspectivism” is applied towards the end of the chapter.
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Ford Foundation. New Delhi Office. and Anna University. Centre for Water Resources., eds. Participatory rehabilitation and management in Kattiampandal tank. New Delhi: Ford Foundation, New Delhi, and Centre for Water Resources, Anna University, Chennai, 2000.

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G, Soliankin A., ed. Sovetskie ognemetnye i khimicheskie tanki, 1929--1945. Moskva: T︠S︡eĭkhgauz, 2007.

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Book chapters on the topic "Flume Tank"

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Ho, Chao-Ching. "Stereo-Vision-Based Fire Detection and Suppression Robot for Buildings." In Geographic Information Systems, 783–97. IGI Global, 2013. http://dx.doi.org/10.4018/978-1-4666-2038-4.ch048.

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A stereo-vision-based fire detection and suppression robot with an intelligent processing algorithm for use in large spaces is proposed in this chapter. The successive processing steps of our real-time algorithm use the motion segmentation algorithm to register the possible position of a fire flame in a video; the real-time algorithm then analyzes the spectral, spatial, and motion orientation characteristics of the fire flame regions from the image sequences of the video. The characterization of a fire flame was carried out by using a heuristic method to determine the potential fire flame candidate region. The fire-fighting robot uses stereo vision generated by means of two calibrated cameras to acquire images of the fire flame and applies the continuously adaptive mean shift (CAMSHIFT) vision-tracking algorithm to provide feedback on the real-time position of the fire flame with a high frame rate. Experimental results showed that the stereo-vision-based mobile robot was able to successfully complete a fire-extinguishing task.
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Colby, Jason M. "Supply and Demand." In Orca. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190673093.003.0014.

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In the summer of 1968, Richard O’Feldman must have wondered how he came to be playing the flute on the back of a killer whale. The curly-haired twenty-eight-year-old was no stranger to marine mammals. Growing up on Miami Beach in the 1940s, he had often seen bottlenose dolphins. “Back in those days, Biscayne Bay was teeming with them,” he recalled, and his mother told him tales of dolphins rescuing downed pilots. Thirsting for adventure, fifteen-year-old O’Feldman lied about his age to join the National Guard and later enlisted in the navy. Over the next five years, he rode a US destroyer around the world, hearing his first dolphin calls in the ship’s sonar room and training to become a navy diver. Not yet twenty-one when he left the service, he dabbled in treasure hunting off the Florida coast before finding work at the Miami Seaquarium. His first day on the job, O’Feldman joined the marine park’s collection crew on an expedition to capture dolphins in Biscayne Bay. “In those days, you didn’t need a permit,” he explained. “You could do whatever you wanted.” As a diver, his task was to search for entangled dolphins while keeping the net clear of coral snags. The collection method made casualties inevitable. “I would find dolphins wrapped up dead,” he admitted. “We killed a lot.” By 1962, O’Feldman had helped capture more than a hundred bottlenose dolphins. The Miami Seaquarium kept some for display, but it sold most to other marine parks. Among them were US buyers such as Marineland of the Pacific and Chicago’s Shedd Aquarium, as well as a growing number of European dolphinariums. “Places were just opening,” he noted, “and we were supplying them.” Among the eager customers was his former employer, the US Navy, which had just launched its Marine Mammal Program. O’Feldman saw nothing wrong with captivity—“never questioned it at all,” he told me. Never, that is, until he began working with the animals himself.
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"Shimian Maifu Ambush on All Sides, a pipa piece shu calligraphy, one category of the literati’s self-cultivation and entertainment shu konghou angular harp Si silk, a category of ancient classification for musical instruments Sichuan Yangqin a local singing narrative genre in Sichuan Province sihu four-string bowed lute suona conical oboe tan plucking, a category of folk classification for musical instruments, meaning plucked instruments taoxun pottery ocarina taozhong pottery bell Tianjin Minjian Yinyue The great meeting of folk music in Tianjin City Shenghui tongbo brass cymbals Tu earth, a category of ancient classification for musical instruments Wenban Shi’er Qü Twelve civil short pieces, a collection of pipa pieces edited by Yang Yinliu and Cao Anhe in 1943 wenqü civil pieces wenzi pu character notation wo konghou half-tube plucked zither with frets on the soundboard wuqü martial pieces xiao vertical bamboo flute, similar to ancient chiba xianghege song, accompanied by instruments xiqin bowed lute xun egg or ball shaped wind instrument, comparable to ocarina yangqin dulcimer yanyue banquet music in the court Yayin Ji Collection of elegant music edited by Yang Yinliu in 1923–1929 yayue ceremonial court music yazheng zither yü a type of ancient sheng, mouth organ yü (different Chinese scraped wooden block character) yunluo small gong chime zheng bridged zither." In Tradition & Change Performance, 34. Routledge, 2012. http://dx.doi.org/10.4324/9780203985656-6.

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"Glossary Bo idiophone, cymbal Dang idiophone, small brass gong suspended in a wooden frame Dao the transcendent eternal Cosmic Way Daozang Taoist canon Di aerophone, horizontal flute Difang yun regional chants Dujiang chief cantor Fangshi man of magical techniques Faqi ritual instruments Fujiang assistant cantor Gaogong fashi chief Taoist or master of exalted merit Gongchi notational system Gu membranophone, drum Guan aerophone, reeded pipe He process of uniting the yin and yang Huoju daoshi non-celibate Taoist priests Jinian fashi rituals celebrating the birthdays of various gods, deities, and past Taoist masters Luo idiophone, gong Moyu idiophone shaped like a fish, made of wood Qi the primordial energy Qing idiophone in the shape of a large bowl, usually made of brass Quanzhen Perfect Realization Quanzhen zhenyun Orthodox Quanzhen chants Sandong three-part classification of historical documents used in the Taoist canon Sanjiao heyi Three religions (Taoism, Buddhism, Confucianism) into one Sanqing The Three Pure Ones, highest of the Taoist gods Shougu membranophone, hand-held drum Suona aerophore, oboe Taiping Dao The Way of Great Peace Tan Taoist altar Tian ren he yi human in/as universe Tianshi Dao The Way of the Heavenly Masters Wushi shaman and spirit-medium Wuwei Taoist philosophical idea of non-interference Xiudao fashi daily morning and evening offices Yangyun chants praising the virtues and power of the gods Yanyue court banquet music." In Tradition & Change Performance, 79. Routledge, 2012. http://dx.doi.org/10.4324/9780203985656-15.

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"really what was at issue, so much as the means by which the inevitable outcome would be accomplished, and it is precisely those means which are problematized by the riddle structure. As usual, the answer is provided retrospectively and within the dramatic frame, but in this case the solution involves the introduc­ tion of new ‘facts’ of which the reader has hitherto been quite unaware. That night, in their prison cell, Theagenes and Charikleia talk over the day’s remarkable events. Charikleia suddenly remem­ bers a dream vision of her now dead mentor Kalasiris that had visited her the previous night and delivered this prophecy: If you wear pantarbe fear-all, fear not the power of flame Miracles may come to pass; for Fate ’tis easy game. (8.11.2) The solution to the riddle is itself a riddle, which Charikleia elucidates for her sceptical beloved: thinking she was about to die, she had secreted about herself the recognition tokens left her by her mother, including a ring set with the jewel called pantarbe and engraved with mystic characters. This, she surmises, protected her from the fire (8.11.7-8). Heliodoros’ manipulation of his narrative is obvious. Any ‘honest’ writer would have narrated this self-evidently important dream in its proper chronological place. The postponement is half­ heartedly explained within the dramatic frame by the suggestion that Charikleia simply forgot about it, but this is only for form’s sake.8 Heliodoros is deliberately withholding information, to induce puzzlement and speculation, to encourage the reader to take, in Umberto Eco’s notorious phrase, ‘inferential walks’. In comparison with the other riddles we have discussed, this one may seem adversarial rather than collaborative. Rather than slowly releasing material which will guide the reader safely to the correct solution, Heliodoros’ aim appears to be to keep us in the dark until such time as it suits him to tell us something we could not have otherwise known. But, although the author is playing more roughly here, he is still observing the rules: the clues are there, though probably their significance is realized only in retrospect. As Charikleia goes to face trial, intending to denounce herself and find release from the torment of her existence, Helio­ doros duly records that she wore her recognition tokens ‘as a kind of burial shroud, fastened around her waist beneath her clothes’ (8.9.8). And this reference to the tokens takes us back, across half." In Greek Literature in the Roman Period and in Late Antiquity, 324. Routledge, 2014. http://dx.doi.org/10.4324/9780203616895-39.

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Conference papers on the topic "Flume Tank"

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Aboulazm, A. "The New Fisheries Flume Tank Facilities at the Marine Institute." In SNAME 22nd American Towing Tank Conference. SNAME, 1989. http://dx.doi.org/10.5957/attc-1989-020.

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A new Fisheries Flume Tank was built and commissioned in March 1988 at the campus of the Marine Institute in St. John’s, Newfoundland, Canada. The tank is designed primarily for fisheries research and training, however, other applications can be accommodated. The tank is one of the largest circulating water tanks in the world. This paper presents a detailed description of the Flume Tank Facility at the Marine Institute, including a detailed technical description and specifications. Tank operating conditions and limitations are also presented. Although the Flume Tank's main function is to support fisheries research and education, many other applications in the field of fluid mechanics model testing, can make good use of the tank. It is clear from the material presented in this paper that the new Marine Institute Flume Tank is a very useful research facility in many fisheries and non-fisheries areas, particularly, vessel and offshore structure flow applications.
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Antony, Arun George, John Halkyard, Ken Huang, Young Chan Park, Mohammed Islam, Hisham Moideen, and Paul Herrington. "Gulfstar Spar VIM Responses in Flume Tank." In Offshore Technology Conference. Offshore Technology Conference, 2013. http://dx.doi.org/10.4043/24207-ms.

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Islam, Mohammed, Don Spencer, Paul Herrington, Dan Walker, Hisham Moideen, and Y. C. Park. "Sheared Current Generation in Flume Tank for Experimental Research." In ASME 2013 32nd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/omae2013-10109.

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Current velocity, profile, direction, and duration may affect hydrodynamic loads and VIM of offshore structure. It is often recommended that physical experiments are carried out in sheared current, in multiple directions and for sufficiently long period of time to investigate the hydrodynamic characteristics of deep draft offshore structures to obtain better correlation to the field measurements. This necessitates generating sheared current with acceptable turbulence level. This paper presents a recent advancement in generating sheared current in a flume tank facility. In this process, the test specimen remains moored and the water flows past with its velocity varied with depth as long as necessary. A combination of synthetic and wire meshes are used to provide the required amount of blockage onto the circulating channel flow of the flume tank to obtain specified current distribution across the cross-section and at the longitudinal center of the tank. The final set-up of the current screen provided a sheared flow distribution within 10% of the targets. Also, the measured turbulence level was below 10% in all the locations measured. VIM studies of a model spar were successfully carried out in the generated sheared current in the flume tank facility. The ability to accurately model the sheared flow essentially improves the accuracy of the measured VIM type response measurements. The generated sheared current can also be applied for other hydrodynamic experiments where sheared current is relevant.
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Anglim, Trey. "EVOLUTION OF A BASIN MARGIN: PRELIMINARY RESULTS FROM FLUME TANK EXPERIMENTS." In GSA Annual Meeting in Indianapolis, Indiana, USA - 2018. Geological Society of America, 2018. http://dx.doi.org/10.1130/abs/2018am-323943.

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de Conti, M. "2D Tests with One and Two Cylinders in Waves." In SNAME 23rd American Towing Tank Conference. SNAME, 1992. http://dx.doi.org/10.5957/attc-1992-036.

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A small new facility has been installed in the Department of Naval Architecture of the University of Sao Paulo, Brazil. It is a wave flume, 14 meters long, 1 meter wide and 1 meter deep. Regular and irregular waves, as well as packages of waves, can be generated in the range 0.5 - 2.5 Hz, 0.5 - 5.0 cm. The wave generator is plunger-type, driven by a servo-motor. 2D tests with one and two cylinders have been conducted, varying the immersion and the distance between the cylinders. Forces acting on the cylinders, wave elevation and plunger motion have been measured. The paper describes the facility and presents the results for the stationary cylinders acted transversely by waves.
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Spinneken, Johannes, and Chris Swan. "The Operation of Force-controlled Absorbing Wave Machines." In SNAME 29th American Towing Tank Conference. SNAME, 2010. http://dx.doi.org/10.5957/attc-2010-010.

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In the near future, the wavemaking facilities at the Naval Surface Warfare Center, Carderock Division (NSWCCD) will be equipped with actively absorbing, force-feedback controlled wavemakers. The purpose of the present study is to demonstrate the successful application of a novel theoretical transfer function appropriate to the operation of such wave machines. This transfer function has been formulated in an earlier study by the same authors and models the wave machine as a coupled hydrodynamic system. In modelling the wave machine’s dynamic behaviour, the hydrodynamic coefficients are accounted for in an analytical fashion; such an approach being supported by the relatively simple geometries of the most common wave boards. Given the resulting theoretical transfer function, which directly relates the force demand signal to the wave field in the tank, the latter may be evaluated before the experiment. Coupled with a pseudo-random wave generation or synthesis technique, the theoretical model enables the numerical prediction of the surface profile in the facility. With the relevant theory having being established, the experimental data presented herein is complementary to the earlier work. In particular, the simultaneous generation and absorption in a double ended wave flume is discussed. This includes both the generation of regular wave trains as well as irregular or random seas. The work presented herein is limited to the generation and absorption of uni-directional waves in wave flumes. However, the theoretical and practical aspects of multi-directional wave generation in force control have now been formulated and reference to this separate study is made.
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Holmes, Samuel. "Modeling Vortex Induced Motion in Sheared Currents." In ASME 2014 33rd International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/omae2014-23076.

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In this paper we examine the vortex induced motions (VIM) of a spar platform in a sheared current. This study is motivated in part by the problem of using flume tanks for the simulation of platform VIM in sheared currents. To date, such experiments have not tried to reproduce the density gradients seen in the ocean in the presence of a stable sheared current. Instead, the flume tanks are kept short so that a velocity gradient introduced at one end is preserved long enough so that a sheared current exists at the model. In this paper we use computational fluid mechanics to simulate both problems. It is shown that buoyancy effects can be significant and need to be considered in the interpretation of flume tank experiments.
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Seto, Mae L., and Christopher D. Williams. "Modeling of a Towed Array: Scale Model Experiments and Numerical Simulations." In SNAME 29th American Towing Tank Conference. SNAME, 2010. http://dx.doi.org/10.5957/attc-2010-014.

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This paper looks at developing a numerical model of a ship and its tow system as the tow system is winched in during high sea states. The focus is on the vertical plane dynamics with the ship and tow system moving at constant heading and constant speed. The goal is to develop the Ship-Tow Interaction in Sea State (STISS) model to determine, for e.g. whether the tow system can be winched in / out without interacting with any part of the transom. STISS makes it possible to decide for a given tow system what ships of opportunity can be used as the tow platform based on only static characteristics of the tow, the tow depth as a function of scope and speed, ship transom geometry, and the ship RAOs. A unique blend of model scale tests and numerical modeling is used to help develop the STISS model. Semi-captive scale model tests of the ship with a deployed tow system were performed in a flume tank to provide validation data for up to 10 knots full scale. The partially validated STISS predictions appear reasonable and the model is awaiting full scale validation. The ability to make predictions for this complex tow condition has not been reported in the literature.
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Mansour, Alaa M., and A. Neil Williams. "Numerical Simulation of Nonlinear Wave Diffraction by a Vertical Cylinder in a Narrow Flume, Wide Tank, and Infinitely Wide Tank." In ASME 2003 22nd International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2003. http://dx.doi.org/10.1115/omae2003-37446.

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In this paper, a three dimensional numerical wave tank model has been used to simulate fully nonlinear wave diffraction by a uniform vertical circular cylinder. The cylinder has been placed in a narrow flume of a width equal to four times the cylinder diameter. The runup and the hydrodynamic forces on the cylinder has been compared to the results when a similar cylinder is placed in a similar tank but with a width equal to sixteen times the cylinder diameter. The model has been further extended by applying an open boundary condition to the side-walls to simulate an infinitely wide tank and hence more realistically simulate open sea condition. The proposed open boundary condition in the lateral direction is based on coupling of two prescribed boundary conditions, namely, numerical beach and Orlanski boundary conditions. The use of this coupled boundary condition has been found to be very efficient in eliminating any significant wave reflection from the side-walls back into the computational domain.
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Magee, Allan R., Varjola Nelko, Kian Yew Lim, and Lup Wai Chew. "Benchmarking Experiments for Wave Absorption Modeling." In ASME 2015 34th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2015. http://dx.doi.org/10.1115/omae2015-42300.

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Passive wave absorption is usually employed at the downstream end of a wave flume or basin to avoid the build-up of wave energy in the tank. However, absorption of waves is not perfect in physical tanks. A beach of different shape and/or composition can result in different absorption efficiency. Laboratory investigations of various passive beach configurations are costly and time-consuming. A more efficient approach is to perform studies using a numerical wave tank (NWT), which in turn requires empirical data to tune the dissipative effects. This study attempts to better understand the quality of waves simulated in a laboratory flume with a uniformly inclined porous beach and a parabolic-shaped solid beach. The data will be used to validate a newly-developed NWT with passive wave absorption. Different incident wave properties are examined and the reflection coefficient is calculated primarily with the two-probe method proposed by Goda & Suzuki (1976) and compared with other methods. An overview of the experiments, absorption analysis and numerical simulation is presented and discussed.
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Reports on the topic "Flume Tank"

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Miller, S. J., and D. L. Laudal. Enhanced flue gas conditioning study. Final report for Task 7.20. Office of Scientific and Technical Information (OSTI), November 1991. http://dx.doi.org/10.2172/10190106.

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Dennis Laudal. JV Task 125-Mercury Measurement in Combustion Flue Gases Short Course. Office of Scientific and Technical Information (OSTI), September 2008. http://dx.doi.org/10.2172/989405.

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3

Weyandt, N., and M. L. Janssens. Flame Arrester Evaluation for E-Diesel Fuel Tanks: September 3, 2002 - May 28, 2003. Office of Scientific and Technical Information (OSTI), June 2003. http://dx.doi.org/10.2172/15003973.

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Ye Zhuang, Christopher Martin, and John Pavlish. JV Task 124 - Understanding Multi-Interactions of SO3, Mercury, Selenium, and Arsenic in Illinois Coal Flue Gas. Office of Scientific and Technical Information (OSTI), March 2009. http://dx.doi.org/10.2172/990804.

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Miller, S., and D. Laudal. Fine particulate emissions: Flue gas conditioning for improved fine particle capture in fabric filters: (Task 3. 6). Office of Scientific and Technical Information (OSTI), January 1990. http://dx.doi.org/10.2172/6841681.

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Nick Degenstein, Minish Shah, and Doughlas Louie. Near-Zero Emissions Oxy-Combustion Flue Gas Purification Task 2: SOx/Nox/Hg Removal for High Sulfur Coal. Office of Scientific and Technical Information (OSTI), May 2012. http://dx.doi.org/10.2172/1054515.

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Zanfir, Monica, Rahul Solunke, and Minish Shah. Near-Zero Emissions Oxy-Combustion Flue Gas Purification Task 3: SOx/NOx/Hg Removal for Low Sulfur Coal. Office of Scientific and Technical Information (OSTI), June 2012. http://dx.doi.org/10.2172/1054516.

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Jozewicz, Wojciech, and G. T. Rochelle. Theoretical approach for enhanced mass transfer effects in duct flue gas desulfurization processes. Topical report for Task 4, Novel techniques. Office of Scientific and Technical Information (OSTI), September 1991. http://dx.doi.org/10.2172/10125937.

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