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Добірка наукової літератури з теми "Buoyancy study"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Buoyancy study"

1

Webb, P. M., D. E. Crocker, S. B. Blackwell, D. P. Costa, and B. J. Boeuf. "Effects of buoyancy on the diving behavior of northern elephant seals." Journal of Experimental Biology 201, no. 16 (1998): 2349–58. http://dx.doi.org/10.1242/jeb.201.16.2349.

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Marine mammals experience radical seasonal changes in body composition, which would be expected to affect their buoyancy in the water. The aim of this study was to examine the relationship between such changes in buoyancy and diving behavior in northern elephant seals Mirounga angustirostris. This was achieved by modifying the buoyancy of 13 juvenile elephant seals translocated from Año Nuevo State Reserve, CA, USA, and released at various sites in Monterey Bay, CA, USA. The buoyancy of each seal was calculated and was increased or decreased using syntactic foam or lead weights, and their divi

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2

Zaki, Fadlurrahman, and Dan Mugisidi. "Effect of buoyancy force on buoyancy waterwheel efficiency using numerical flow simulation." TEKNOSAINS : Jurnal Sains, Teknologi dan Informatika 11, no. 2 (2024): 209–21. http://dx.doi.org/10.37373/tekno.v11i2.976.

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In this work, the performance of a buoyant waterwheel to produce hydrokinetic power is investigated through analytical theory and computational fluid dynamics simulation. The impact of the buoyancy wheel is investigated by establishing the performance parameters through the use of a moving mesh approach and a realizable k-ε turbulence model. Transient simulation is required to comprehend the flow of physical processes. Using moving mesh as a transient methodology of the buoyancy waterwheel, numerical flow simulations and theoretical analytical methods are used in this study to assess the effec

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3

Li, Nga-wun, Chu-po Ho, Kit-lun Yick, and Jin-yun Zhou. "Comparison of test methods for measuring the net buoyant force of buoyant materials." Research Journal of Textile and Apparel 24, no. 2 (2020): 147–61. http://dx.doi.org/10.1108/rjta-08-2019-0036.

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Purpose Net buoyant force is a crucial factor affecting the functional performance of clothing for water safety. This study aims to develop an alternative method for measuring the net buoyant force of various buoyant materials such as buoyant fabrics, on a small scale in a more accurate and efficient way than the existing method. Design/methodology/approach The net buoyant forces of buoyant materials with different thicknesses and forms were determined and compared using three methods. In Method 1, the traditional method involving mathematical calculations was used; Method 2 involved using the

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4

Zeng, Tao, Ke Zhong, and Wanting Wang. "Overlap or breakthrough? exploration of the academic buoyancy structure in Chinese EFL learners." PLOS ONE 20, no. 1 (2025): e0318347. https://doi.org/10.1371/journal.pone.0318347.

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Academic buoyancy, recognized as a key component of positive personality traits in learning, has garnered significant attention. However, most research on buoyancy is limited to general educational contexts, lacking a comprehensive theoretical framework that poses challenges in evaluating buoyancy’s impact on learners within the domain of second language acquisition (SLA). This study seeks to bridge this gap by investigating academic buoyancy within the realm of foreign language learning, specifically among university students in mainland China studying English as a foreign language (EFL). The

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5

Gau, C., Y. C. Jeng, and C. G. Liu. "An Experimental Study on Mixed Convection in a Horizontal Rectangular Channel Heated From a Side." Journal of Heat Transfer 122, no. 4 (2000): 701–7. http://dx.doi.org/10.1115/1.1318211.

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Experiments are performed to study the mixed convection flow and heat transfer in a horizontal rectangular channel heated from a side. The channel is made of two vertical parallel plates with one of the plates heated uniformly and the opposite plate well insulated. The gap between the parallel plates is small and the height to gap ratio of the channel cross section is 6.67. Both flow visualization and the heat transfer along the heated wall are measured. The Reynolds number ranges from 317 to 2000, the buoyancy parameter, Gr/Re2, from 0 to 20000 and Pr of the air flow is 0.7. Flow structure in

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6

Kraft, Wayne N., and Malcolm J. Andrews. "Experimental Investigation of Unstably Stratified Buoyant Wakes." Journal of Fluids Engineering 128, no. 3 (2005): 488–93. http://dx.doi.org/10.1115/1.2174060.

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A water channel has been used as a statistically steady experiment to investigate the development of a buoyant plane wake. Parallel streams of hot and cold water are initially separated by a splitter plate and are oriented to create an unstable stratification. At the end of the splitter plate, the two streams are allowed to mix and a buoyancy-driven mixing layer develops. The continuous, unstable stratification inside the developing mixing layer provides the necessary environment to study the buoyant wake. Downstream a cylinder was placed at the center of the mixing layer. As a result the dyna

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7

CARDOSO, SILVANA S. S., and SEAN T. MCHUGH. "Turbulent plumes with heterogeneous chemical reaction on the surface of small buoyant droplets." Journal of Fluid Mechanics 642 (November 30, 2009): 49–77. http://dx.doi.org/10.1017/s0022112009991674.

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A model is developed for a turbulent plume with heterogeneous chemical reaction rising in an unbounded environment. The chemical reaction, which may generate or deplete buoyancy in the plume, occurs at the interface between two phases, a continuous phase and a dispersed one. We study the case in which a buoyant reactant is released at the source and forms the dispersed phase, consisting of very small bubbles, droplets or particles. Once in contact with the ambient fluid, a first-order irreversible reaction takes place at the surface of the, for example, droplets. The behaviour of this plume in

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8

Ma, Chengjing, Caiwen Zhang, and Guanxiong Li. "Parametric sensitivity study of unmanned buoyancy-lifting aerial vehicle." MATEC Web of Conferences 189 (2018): 08004. http://dx.doi.org/10.1051/matecconf/201818908004.

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Buoyancy-lifting aerial vehicle is a new development direction of the near space vehicle. This paper presents two conceptual schemes of unmanned buoyancy-lifting aerial vehicle with different configurations. The general parameter design method is studied, and the general parameter calculation model is established. The general parameters of airship and the buoyancy-lifting aerial vehicle are compared and studied. Taking buoyancy-lifting aerial vehicle with single fuselage and dual wings as the research object, sensitivity analysis of parameters has been done. The results show that compared with

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9

Panjwani, Divya R., and Balaji B. "Predictors of Academic Buoyancy: A Study of Demographic Correlates." ECS Transactions 107, no. 1 (2022): 6977–85. http://dx.doi.org/10.1149/10701.6977ecst.

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Academic buoyancy refers to to learners’ potential to face challenges and difficulties that are regular in nature under educational settings or environment. Demographic correlates were found and its effect on academic buoyancy was obtained through regression analysis. The sample consists of 1200 high school students belonging to three different boards of Lucknow City. Multiple regression analysis was done in variables where independent variables which are non-metric and a single dependent variable viz. academic buoyancy is metric in nature. Regression analysis is done through dummy coding wher

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10

Tiwari, B. K., Dr Rajiv Sharma, and Tae-Wan Kim. "EXPERIMENTAL STUDY OF A VARIABLE BUOYANCY SYSTEM FOR LOW DEPTH OPERATION." International Journal of Maritime Engineering 165, A1 (2023): 103–14. http://dx.doi.org/10.5750/ijme.v165ia1.1203.

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Autonomous Underwater Vehicles (AUVs) are used for the underwater survey both in coastal areas and deep sea without any human intervention during their operations. However, high energy consumptions required by the thrusters of the AUV’s adversely affect their performance such as range and endurance, etc. Herein, we have presented a novel design and development of a standalone variable buoyancy system for autonomous underwater vehicle and investigated the numerical and experimental analysis of Variable Buoyancy System (VBS) in standalone mode. Design idea is based upon the ‘Pump Driven Variable

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Дисертації з теми "Buoyancy study"

1

McHugh, Sean. "A theoretical and experimental study of plumes with internally-produced changes in buoyancy." Thesis, University of Cambridge, 2009. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.611281.

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2

Lucas, Marc A. "On steady and variable buoyancy forcing in the Atlantic : an idealised modelling study." Thesis, University of Southampton, 2005. https://eprints.soton.ac.uk/18666/.

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This study examines the response of the thermohaline circulation in the north Atlantic to steady and variable buoyancy forcing. The model used is a version of the MOMA model (Webb, 1996), updated to include a free surface and Gent & McWilliams mixing. The model’s resolution is coarse, 4 x4 degrees with 15 levels in the vertical. In a first instance, the model’s response to 14 different fixed thermal profiles is investigated, by systematically keeping the equator temperature fixed and then the northernmost temperature fixed. The results show that the models response differs for these two sets o

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3

Cresswell, R. W. "An experimental study of a turbulent jet in which buoyancy acts against initial momentum." Thesis, Open University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.233227.

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4

Blomqvist, Claes. "Distribution of Ventilation Air and Heat by Buoyancy Forces inside Buildings : An Experimental Study." Doctoral thesis, Stockholm : Skolan för arkitektur och samhällsbyggnad, Kungliga tekniska högskolan, 2009. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-10615.

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5

Iyer, Suresh Viswanathan. "Study of buoyancy induced flow and heat transfer in a cylindrical annulus with geometric perturbations /." The Ohio State University, 1998. http://rave.ohiolink.edu/etdc/view?acc_num=osu1487953204281755.

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6

Iyi, Draco. "A study on buoyancy driven turbulent flow associated with radiation in cavities partially filled with blockages." Thesis, Northumbria University, 2013. http://nrl.northumbria.ac.uk/15246/.

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Анотація:

Fluid flow and heat transfer in cavities partially filled with disconnected blockages is important in the design of a wide range of industrial and engineering applications such as thermal management of indoor environments, cooling of electronic panels, drying of agricultural products, stacking of items in cold storage etc. The flows in such confined spaces develop as a result of temperature and concentration gradient which is further complicated by the interactive effects of turbulence and radiation. The aims of this research are to explore the detailed heat transfer and flow field inside cavi

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7

Zohrabian, Alfred Sorooshkani. "An experimental and theoretical study of buoyancy driven air-flow in a half-scale stairwell model." Thesis, Brunel University, 1989. http://bura.brunel.ac.uk/handle/2438/5349.

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The buoyancy-driven air flow and the associated energy transfer within a half-scale stairwell model have been investigated experimentally and theoretically. The experimental work comprised the larger part of the investigation. The stairwell model consisted of a lower and an upper compartment connected through the stairway. The recirculation of air was maintained by a continuous supply of heat in the lower compartment. Two different cases, referred to as closed and open non-sloping ceiling stairwells, were considered. In the former, the stairwell formed a closed system, and in the latter situat

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8

Chidurala, Manohar. "A Numerical Study of Unsteady Natural Convection in a Rectangular Enclosure -- The Effect of Variable Thermodynamic and Transport Properties." ScholarWorks@UNO, 2009. http://scholarworks.uno.edu/td/973.

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A two-dimensional mathematical model is adopted to investigate the development of buoyancy driven circulation patterns and temperature contours inside a rectangular enclosure filled with a compressible fluid where one of the vertical walls of the enclosure is kept at a higher temperature than the opposite one. Fluid thermodynamic and transport properties are assumed to be functions of temperature. The governing equations are discretized using second order accurate differencing for spatial and temporal derivatives and then linearized using Newton's linearization method. The resulting set of alg

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9

Meunders, Andreas [Verfasser]. "A study on buoyancy-driven flows: Using particle image velocimetry for validating the Fire Dynamics Simulator / Andreas Meunders." Wuppertal : Universitätsbibliothek Wuppertal, 2016. http://d-nb.info/1120340047/34.

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10

Wood, Christie L. (Christie Lynn). "Sensitivity study and stability analysis of the Marotzke and Stone ocean-atmosphere model under buoyancy and energy constraints." Thesis, Massachusetts Institute of Technology, 2005. http://hdl.handle.net/1721.1/114115.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2005.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (page 44).<br>The oceanic circulation plays a significant role in earth's climate by transporting heat polewards. Here the ocean's thermohaline circulation is studied using the Marotzke and Stone four box ocean-atmosphere model under both the buoyancy constraint proposed by Stommel and the energy constraint proposed by Huang. Both a sensitivity study and stability analysis is performed. In the sensit

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Книги з теми "Buoyancy study"

1

Bellingham School District No. 501 (Wash.). Density, buoyancy. The Schools, 1989.

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2

O, Frazier Donald, and United States. National Aeronautics and Space Administration., eds. Buoyancy-driven heat transfer during application of a thermal gradient for the study of vapor deposition at low pressure using an ideal gas. National Aeronautics and Space Administration, 1997.

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3

O, Frazier Donald, and United States. National Aeronautics and Space Administration., eds. Buoyancy-driven heat transfer during application of a thermal gradient for the study of vapor deposition at low pressure using an ideal gas. National Aeronautics and Space Administration, 1997.

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4

O, Frazier Donald, and United States. National Aeronautics and Space Administration., eds. Buoyancy-driven heat transfer during application of a thermal gradient for the study of vapor deposition at low pressure using an ideal gas. National Aeronautics and Space Administration, 1997.

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5

Snyder, Trevor James. A study on the competing effects of the dielectrophoretic force and buoyancy on nucleate boiling heat transfer rates and an analogy with variable gravity boiling results. School of Mechanical and Materials Engineering, Washington State University, 1995.

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6

Kerho, Michael F. A study of the accuracy of neutrally buoyant bubbles used as flow tracers in air. National Aeronautics and Space Administration, 1993.

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7

NATO Advanced Study Institute on Buoyant Convection in Geophysical Flows (1997 Pforzheim, Baden-Württemberg, Germany). Buoyant convection in geophysical flows: [proceedings of the NATO Advanced Study Institute on Buoyant Convection in Geophysical Flows, Pforzheim, Baden-Württemberg, Germany, 17-27 March 1997]. Kluwer Academic in cooperation with NATO Scientific Affairs Division, 1998.

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8

An experimental study of a turbulent jet in which buoyancy acts against initial momentum. 1988.

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9

A fundamental study of smoldering with emphasis on experimental design for zero-G. National Aeronautics and Space Administration, 1995.

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10

National Aeronautics and Space Administration (NASA) Staff. Numerical Study of Buoyancy and Different Diffusion Effects on the Structure and Dynamics of Triple Flames. Independently Published, 2018.

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Частини книг з теми "Buoyancy study"

1

MacGillivray, Ian, Daniel Lamos, Jeffrey Seers, and Alex Skvortsov. "Study of Flow Noise with a Buoyancy-Driven Model." In Flinovia—Flow Induced Noise and Vibration Issues and Aspects—IV. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-73935-4_9.

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2

Olukuru, John, and Barrack Mandela. "Tax Buoyancy: A Comparative Study Between Kenya and South Africa." In Development Finance. Springer International Publishing, 2017. http://dx.doi.org/10.1007/978-3-319-54166-2_3.

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3

Lemaigre, L., L. A. Riolfo, and A. De Wit. "Experimental Study of Buoyancy-Driven Instabilities Around Acid-Base Reaction Fronts." In Proceedings of the European Conference on Complex Systems 2012. Springer International Publishing, 2013. http://dx.doi.org/10.1007/978-3-319-00395-5_7.

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4

Jaluria, Y. "Computational Study of External and Internal Convective Flows with Significant Buoyancy Effects." In Computational Mechanics ’88. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-61381-4_427.

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5

Li, Zhihui. "Numerical Simulation of Convective Heat Transfer of CO2 in a Tube Under Supercritical Pressure at Low Reynolds Numbers." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-99-1023-6_76.

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AbstractThe supercritical carbon dioxide (S-CO2) Brayton cycle has the advantages of compact layout, simple structure, high thermal efficiency, clean working quality, its application in lead-cooled fast reactor power conversion system helps the miniaturization and modularization of the whole system. The development of an efficient and compact supercritical CO2 heat exchanger has important reference significance for improving the thermal efficiency of the system of lead-cooled fast reactor. Supercritical CO2 can operate in high Reynolds number turbulence and low Reynolds number turbulence in he

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6

Cui, Qinglong, Bo Li, Shibo Shi, Yongfei Tuo, Heng Shu, and Yalina Ma. "Study on anti-buoyancy calculation and treatment measures of a large diameter shield tunnel in liquefied sand." In Advances in Civil Function Structure and Industrial Architecture. CRC Press, 2022. http://dx.doi.org/10.1201/9781003305019-90.

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7

Hao, Yiyang, Yunbo Zhou, and Ming Zhang. "Research on Wading Mobility of a Certain Type of Special Vehicle Based on MPS Method." In Lecture Notes in Mechanical Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-1876-4_96.

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AbstractIn order to study the wading mobility of a certain type of special vehicle, a high-precision dynamic model of the special vehicle is built. The vehicle dynamic model is verified by in-situ acceleration test and traction test. Through the dam-break experiment and wet road traction test, the feasibility and reliability of calculating the water impact pressure, buoyancy and solving the fluid–solid coupling problem based on the moving particle semi-implicit algorithm (MPS) are verified. Then, based on the MPS algorithm, a multi-body dynamics-fluid analysis simulation model is built to simu

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8

Kapoor, S. "Computational Study of Double Diffusive MHD Buoyancy Induced Free Convection in Porous Media with Chemical Reaction and Internal Heating." In Advanced Applications of Computational Mathematics. River Publishers, 2022. http://dx.doi.org/10.1201/9781003336983-9.

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9

Adhikari, Puspa L., Wokil Bam, Pamela L. Campbell, et al. "Evaluating Microplastic Experimental Design and Exposure Studies in Aquatic Organisms." In Microplastic in the Environment: Pattern and Process. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-78627-4_3.

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AbstractEnvironmental microplastic particles (MPs) represent a potential threat to many aquatic animals, and experimental exposure studies, when done well, offer a quantitative approach to assess this stress systematically and reliably. While the scientific literature on MP studies in aquatic environments is rapidly growing, there is still much to learn, and this chapter presents a brief overview of some of the successful methods and pitfalls in experimental MP exposure studies. A short overview of some experimental design types and recommendations are also presented. A proper experimental exp

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10

Jamet, Quentin, Etienne Mémin, Franck Dumas, Long Li, and Pierre Garreau. "Toward a Stochastic Parameterization for Oceanic Deep Convection." In Mathematics of Planet Earth. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-40094-0_6.

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AbstractCurrent climate models are known to systematically overestimate the rate of deep water formation at high latitudes in response to too deep and too frequent deep convection events. We propose in this study to investigate a misrepresentation of deep convection in Hydrostatic Primitive Equation (HPE) ocean and climate models due to the lack of constraints on vertical dynamics. We discuss the potential of the Location Uncertainty (LU) stochastic representation of geophysical flow dynamics to help in the process of re-introducing some degree of non-hydrostatic physics in HPE models through

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Тези доповідей конференцій з теми "Buoyancy study"

1

Gibbs, Brian, Michael J. Kouw, and Fred M. Robinson. "Asset Integrity Management NASA's Neutral Buoyancy Laboratory." In CORROSION 2006. NACE International, 2006. https://doi.org/10.5006/c2006-06350.

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Abstract This paper presents findings of a corrosion study of NASA's Neutral Buoyancy Lab (NBL) reinforced concrete water tank, which has been in operation for approximately 10 years. The tank is used to provide Astronauts a neutrally buoyant working environment which approximates the zero gravity environment experienced while working in the vacuum of space. A combination of examination techniques has resulted in an initial estimate of the level of corrosion present in the tank structure, as well as a determination of the primary causes of the corrosion. Although the precise mechanism causing

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2

Chang, Chi-Min, Bruce C. Conger, and John V. lovine. "Neutral Buoyancy Portable Life Support System Performance Study." In International Conference On Environmental Systems. SAE International, 1991. http://dx.doi.org/10.4271/911346.

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3

Du, Zhongxuan, Wensheng Lin, and Anzhong Gu. "Numerical Study on Supercritical CH4/N2 Cooling in a Horizontal Tube." In ASME 2012 Heat Transfer Summer Conference collocated with the ASME 2012 Fluids Engineering Division Summer Meeting and the ASME 2012 10th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/ht2012-58259.

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Coalbed methane (CBM) is a kind of mixed gas with the principal component of methane and nitrogen. Supercritical convective heat transfer of CH4/N2 cooled in horizontal circular tubes is one of the most important heat transfer processes during CBM liquefaction. In this paper, supercritical CH4/N2 cooling has been numerically investigated in a horizontal tube by using the low Reynolds number turbulence model proposed by Lam and Bremhorst. The study first focuses on the effect of nitrogen content on CBM heat transfer characteristics. The results indicate that supercritical convective heat transf

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4

Holmes, Samuel, Owen H. Oakley, Kamaldev Raghavan, and Yiannis Constantinides. "Using CFD to Study the Effects of Staggered Buoyancy on Dilling Riser VIV." In ASME 2008 27th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2008. http://dx.doi.org/10.1115/omae2008-57434.

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This paper examines the potential benefit of the spaced arrangement of buoyancy modules to reduce the vortex induced vibration of deepwater drilling risers. Buoyancy modules are most often continuously applied to a riser to manage the top tension in the riser but they can also be spaced apart so that segments of bare riser are exposed. Field experience suggests this “staggering” of the buoyancy modules tends to suppress vortex induced vibration (VIV). However, the effects of staggered buoyancy are not well understood. In this paper we use CFD simulations to find the flow characteristics of var

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5

Chen, Yingying, Cheng Yu, Xiangdong Liu, and Liangyu Wu. "Experimental Study on Emulsion Formation in Buoyancy-Driven Microfluidics Devices." In The 5th World Congress on Mechanical, Chemical, and Material Engineering. Avestia Publishing, 2019. http://dx.doi.org/10.11159/htff19.165.

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6

Xu, X. Y., T. Ma, M. Zeng, and Q. W. Wang. "Numerical Study of the Effects of Different Buoyancy Models on Supercritical Flow and Heat Transfer." In ASME 2013 Heat Transfer Summer Conference collocated with the ASME 2013 7th International Conference on Energy Sustainability and the ASME 2013 11th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2013. http://dx.doi.org/10.1115/ht2013-17295.

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Due to the dramatic changes in physical properties, the flow and heat transfer in supercritical fluid are significantly affected by buoyancy effects, especially when the ratio of inlet mass flux and wall heat flux is relatively small. In this study, the heat transfer of supercritical water in uniformly heated vertical tube is numerically investigated with different buoyancy models which are based on different calculation methods of the turbulent heat flux. The applicabilities of these buoyancy models are analyzed both in heat transfer enhancement and deterioration conditions. The simulation re

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7

Nnanna, A. G. Agwu. "Nanoparticle Concentration in Buoyancy Flows." In ASME 2005 International Mechanical Engineering Congress and Exposition. ASMEDC, 2005. http://dx.doi.org/10.1115/imece2005-79364.

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The presence of nanoparticles in buoyancy-driven flows affects the thermophysical properties of the fluid and consequently alters the rate of heat transfer. The focus of this paper is to estimate the range of volume fractions that results in maximum thermal enhancement in buoyancy-driven nanofluids. In this study, a two-dimensional rectangular enclosure with isothermal vertical walls and adiabatic horizontal surface is filled with 27nm Al2O3 - H2O nanofluid. The volume fraction is varied between 0 to 12%. Results shows that for small volume fraction, 0.2≤Φ≤2%, the presence of the nanoparticles

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8

Mathai, Joel Reji, Shailendra Rana, Amr Shaalan, et al. "Numerical Study of Buoyancy and Flame Characteristics of Ammonia-Air Flames." In ASME 2024 ICE Forward Conference. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/icef2024-141569.

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Abstract There is growing interest in ammonia, NH3, as a zero-carbon fuel for use in transportation as part of broader decarbonization efforts. Ammonia has several advantages as an alternative fuel, including an existing global infrastructure and the ability to be stored as a liquid at room temperature and moderate pressures, thereby increasing its volumetric energy density relative to hydrogen. However, ammonia has a very slow flame speed and can be challenging to ignite. There are growing efforts to develop numerical models of ammonia combustion. However, difficulties still remain to match e

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9

Brinkmann, Carl R., and Kevin T. Whooley. "Design Study of a Deepwater Compliant Vertical Access Riser for the Gulf of Mexico." In ASME 2002 21st International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2002. http://dx.doi.org/10.1115/omae2002-28470.

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This paper presents the results of a design study of a compliant vertical-access riser (CVAR) for the deepwater Gulf of Mexico area. The CVAR concept modifies traditional, tensioned risers by providing vertical compliancy through its geometric shape that is achieved by elongating the riser and providing buoyancy along the lower section. A major benefit of this geometric compliancy is that surface trees can be fixed relative to the floating vessel. Also, there is a potential for significant cost savings as compared to alternate, top-tensioned riser systems. A key design feature is the tapering

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10

Munuhe, Timothy, Ronghui Ma, Walter M. Duval, Robert W. Hawersaat, and Narsingh B. Singh. "NUMERICAL STUDY OF BUOYANCY DRIVEN LIQUID FLOW WITH DISPERSED SOLID PARTICLES." In First Thermal and Fluids Engineering Summer Conference. Begellhouse, 2016. http://dx.doi.org/10.1615/tfesc1.mph.012864.

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Звіти організацій з теми "Buoyancy study"

1

Hassan, N. M. SuperLig Ion Exchange Resin Swelling and Buoyancy Study. Office of Scientific and Technical Information (OSTI), 2000. http://dx.doi.org/10.2172/759140.

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2

Georgiadis, J. G., R. Behringer, and G. A. Johnson. Analytical and experimental study of instabilities in buoyancy-driven convection in porous media. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/7265339.

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3

Theofanous, T., K. Iyer, H. Nourbakhsh, and P. Gherson. Buoyancy effects in overcooling transients calculated for the NRC pressurized thermal shock study. Office of Scientific and Technical Information (OSTI), 1986. http://dx.doi.org/10.2172/5692078.

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4

Georgiadis, J. G., R. Behringer, and G. A. Johnson. Analytical and experimental study of instabilities in buoyancy-driven convection in porous media. Progress report, August 1991--April 1992. Office of Scientific and Technical Information (OSTI), 1992. http://dx.doi.org/10.2172/10175344.

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5

Hill, Samuel, Yothin Jinjarak, and Donghyun Park. Buoyant or Sinking? Tax Revenue Performance and Prospects in Developing Asia. Asian Development Bank, 2022. http://dx.doi.org/10.22617/wps220182-2.

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This paper examines tax revenue mobilization in developing Asia before the coronavirus disease (COVID-19) pandemic and in 2020. Analysis suggests that short- and long-run tax buoyancy in developing Asia were close to one before COVID-19, indicating fiscal sustainability. The study estimates that in 2020 the pandemic caused these economies to lose average excess tax revenue equal to half a percentage point of 2019 GDP. It also finds that tax-to-GDP ratios are projected to improve toward 2030 in a majority of developing Asian economies, other things held constant.

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6

Brown, R. J. L51598 Tow Methods Design Guide for the Installation of Offshore Pipelines. Pipeline Research Council International, Inc. (PRCI), 1989. http://dx.doi.org/10.55274/r0010093.

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In an effort to progress the development of hydrocarbon fields found in water depths beyond 1000 feet, the oil and gas industry is considering cost effective methods of subsea pipeline installation. As an established and reliable oil and gas transportation system, the pipeline will be an important factor in deepwater development. Surface installation methods are expected to become costly in deepwater due to the necessary equipment modifications and vessel requirements which are synonymous with increased tension capability and deepwater station keeping ability. This estimated increase in instal

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7

Sala-i-Martin, Xavier. Economic Integration, Growth, and Poverty. Inter-American Development Bank, 2007. http://dx.doi.org/10.18235/0009175.

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A paper commissioned by the IDB sees trade openness to generate economic growth and help reduce poverty. The study, written by aColumbia University economics professor Xavier Sala-i-Martin, takes a close look at the impact of regional trade agreements, finding benefits to outweigh the potential short-run increases in inequality. Buoyant as it is about the benefits of free trade, the paper includes warnings for policymakers.

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8

Raja, Rameez Ali, Mustafa Kilic, Monica Prezzi, Rodrigo Salgado, and Fei Han. Implementation Study: Continuous, Wireless Data Collection and Monitoring of the Sagamore Parkway Bridge. Purdue University, 2022. http://dx.doi.org/10.5703/1288284317367.

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This report presents, in detail, the development and implementation of a wireless solar powered DAQ system for continuous real-time monitoring of the Sagamore Parkway Bridge using the data collected from strain gauges installed in the bridge pier and its foundation piles. The data analysis showed that there is no significant change in the load-settlement response of the bridge pier 3 years after its construction. The pile cap contribution in carrying the total load carried by the bridge pier is significant (about 20%). The hourly ambient temperature trends match with the incremental bending mo

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9

Rossi, José Luiz, and Heron Marcos Teixeira Rios. Boosting Foreign Direct Investment through Strategic Reforms. Inter-American Development Bank, 2025. https://doi.org/10.18235/0013605.

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The main objective of this study is to analyze the relevance of economic and institutional factors in shaping the dynamics of Foreign Direct Investment (FDI). To this end, several econometric analyses are conducted to examine the determinants of FDI inflows. The results indicate that, across a panel of countries, factors such as market size, exchange rate policy, the degree of trade openness, and the quality of public governance including political stability, adherence to the rule of law, government efficiency, and regulatory quality are decisive for attracting foreign capital. In the specific

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