Relevant bibliographies by topics / Water tunnel experiments

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Water tunnel experiments'

Author: Grafiati
Published: 1 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Water tunnel experiments"

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Huang, Wei, Mingtao Hu, Rubin Wang, Jianping Zhang, and Weiya Xu. "Study on Large-Scale Geomechanical Experiments on Tunnel External Water Pressure." Water 17, no. 7 (2025): 913. https://doi.org/10.3390/w17070913.

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High external water pressure poses significant challenges to the construction of long-distance water diversion tunnels under complex geological conditions. This study developed a large-scale geomechanics model to explore the effects of tunnel depth, water head, and drained conditions on external water pressure, focusing on the Songlin Tunnel in the Central Yunnan Water Diversion Project. The results show that external water pressure is most affected by water head and tunnel depth, particularly under undrained conditions. At water heads over 160 m, the external water pressure significantly decr
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Zhukov, S. A., M. A. Bubnov, and M. S. Naumov. "Modeling of the rock mass deformations effect on deep metro main line tunnels." Mining Industry Journal (Gornay Promishlennost), no. 5S/2024 (December 6, 2024): 190–96. https://doi.org/10.30686/1609-9192-2024-5s-190-196.

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The article discusses the effects of soil mass movement on deep metro main line tunnels. The study is based on the data obtained as part of a field survey of a tunnel section that was exposed to a non-routine event. Displacements of the soil mass surrounding the tunnel during its operation may occur due to disturbance of the groundwater mode caused by abundant water inflow into the tunnel. Solution cavities, especially those filled with water, can also cause deformation of the tunnels during operation, resulting in water inflow into the tunnel. If these cavities are filled with loose sediments
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Cutler, Paul M. "Modelling the evolution of subglacial tunnels due to varying water input." Journal of Glaciology 44, no. 148 (1998): 485–97. http://dx.doi.org/10.3189/s002214300000201x.

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AbstractThe time evolution of a subglacial tunnel cross-section is examined usine a two-dimensional finite-element ice-flow model coupled to an idealized drainage system. Simulations are driven by physically based calculations of surface water-input variations at Slorgiaciaren, Sweden. Highlights of the model are its ability to handle unsteady conditions and irregular tunnel shapes. Agreement between modelled water pressure and borehole water levels is good. The following conclusions are reached: (i) Tunnels adapt to fluctuating inflow on time-scales of days. Storms, during which effective pre
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Cutler, Paul M. "Modelling the evolution of subglacial tunnels due to varying water input." Journal of Glaciology 44, no. 148 (1998): 485–97. http://dx.doi.org/10.1017/s002214300000201x.

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AbstractThe time evolution of a subglacial tunnel cross-section is examined usine a two-dimensional finite-element ice-flow model coupled to an idealized drainage system. Simulations are driven by physically based calculations of surface water-input variations at Slorgiaciaren, Sweden. Highlights of the model are its ability to handle unsteady conditions and irregular tunnel shapes. Agreement between modelled water pressure and borehole water levels is good. The following conclusions are reached: (i) Tunnels adapt to fluctuating inflow on time-scales of days. Storms, during which effective pre
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Makoto, Yamaguchi, Kiwata Takahiro, Kono Takaaki, and Ueno Toshiyuki. "1192 WATER TUNNEL EXPERIMENTS ON TRANSVERSE VIBRATION OF A CANTILEVERED PRISM." Proceedings of the International Conference on Jets, Wakes and Separated Flows (ICJWSF) 2013.4 (2013): _1192–1_—_1192–6_. http://dx.doi.org/10.1299/jsmeicjwsf.2013.4._1192-1_.

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Wen, Jiwei, Pengshuai Zhang, Zhe Xiong, et al. "Laboratory Experimental Investigation on the Structural Optimization of a Novel Coupled Energy Tunnel." Buildings 14, no. 11 (2024): 3333. http://dx.doi.org/10.3390/buildings14113333.

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Freezing damage to tunnels in cold regions has long posed a threat to the safe operation of high-speed trains and other means of transportation. Finding a reasonable and effective solution to this problem, while also considering green, low-carbon, energy-saving, and environmental protection measures, has garnered widespread attention. Herein, the concept of a novel coupled energy tunnel is proposed, which combines the technologies of an air curtain and ground source heat pump (GSHP). The aim is to effectively address the issue of freezing damage in tunnels located in cold regions, while ensuri
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GONZALEZ-RODRIGUEZ, DAVID, and OLE SECHER MADSEN. "Boundary-layer hydrodynamics and bedload sediment transport in oscillating water tunnels." Journal of Fluid Mechanics 667 (November 1, 2010): 48–84. http://dx.doi.org/10.1017/s0022112010004337.

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Oscillating water tunnels are experimental facilities commonly used in coastal engineering research. They are intended to reproduce near-bed hydrodynamic and sediment transport phenomena at a realistic scale. In an oscillating water tunnel, a piston generates an oscillatory motion that propagates almost instantaneously to the whole tunnel; consequently, flow is uniform along the tunnel, unlike the propagating wave motion in the sea or in a wave flume. This results in subtle differences between the boundary-layer hydrodynamics of an oscillating water tunnel and of a propagating wave, which may
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Aziz, Fahrurrozi, Katrine A. Stewart, and Sylvie Jenni. "Early Growth of Muskmelon in Mulched Minitunnels Containing a Thermal Water Tube. I. Carbon Dioxide Concentrations in the Tunnel." Journal of the American Society for Horticultural Science 126, no. 6 (2001): 757–63. http://dx.doi.org/10.21273/jashs.126.6.757.

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Temperature modification is the most investigated environmental factor considered to affect muskmelon (Cucumis melo L. Reticulatus Group) growth in a mulched minitunnel production system. Until now, effects on CO2 concentrations within the tunnel have been ignored. Experiments on production of `Earligold' netted muskmelon were conducted in 1997, 1998, and 1999 to determine daily CO2 concentrations for 10 mulched minitunnel and thermal water tube combinations. Carbon dioxide concentrations under nonperforated (clear or infrared-blocking polyethylene) tunnels were significantly higher (three to
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Huang, Zhangkai, Meixia Chen, Ting Wang, Huachang Cui, and Wenkai Dong. "Numerical Investigation of Background Noise in a Circulating Water Tunnel." Machines 11, no. 8 (2023): 839. http://dx.doi.org/10.3390/machines11080839.

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The presence of excessive background noise in hydrodynamic noise experiments conducted in circulating water tunnels can significantly impact the accuracy and reliability of experimental test results. To address this issue, it is crucial to evaluate and optimize the background noise during the design stage. In this research, acoustic field model and fluid–solid coupling numerical calculation model of circulating water tunnels are established. Utilizing the finite element method, we analyze the flow noise and flow-excited noise resulting from wall pressure pulses in the circulating water tunnel.
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Kerwin, Justin E. "The MIT Marine Hydrodynamics Water Tunnel—A 53rd Anniversary Celebration." Marine Technology and SNAME News 31, no. 03 (1994): 183–94. http://dx.doi.org/10.5957/mt1.1994.31.3.183.

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Fifty-three years ago, Professor Frank M. Lewis presented a paper entitled "Propeller Testing Tunnel at the Massachusetts Institute of Technology," at the spring meeting of SNAME. The tunnel is still there, although its name is changed, and its appearance2 is very different. However, the goals of the laboratory are still very much the same—to conduct innovative experiments designed to learn more about the fundamentals of the flow around propellers and other objects of interest to ocean engineers. This paper presents a historical review of many of the varied experiments conducted since the tunn
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Dissertations / Theses on the topic "Water tunnel experiments"

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Munro, Cameron. "Water tunnel validation and experiments at high angles of attack for aircraft conceptual design /." Linköping : Univ, 2003. http://www.bibl.liu.se/liupubl/disp/disp2002/tek847s.pdf.

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Gluck, Jeffrey Weston, and Jeffrey Weston Gluck. "Water Tunnel Experiments on Span-wise Variation of Laminar Separation Bubbles for Swept and Unswept Wings using Particle Image Velocimetry." Thesis, The University of Arizona, 2016. http://hdl.handle.net/10150/621851.

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An inverted airfoil mounted above a flat plate was used to create laminar separation bubbles on a flat plate in water tunnel experiments at low Reynolds numbers. Boundary layer suction ensured that the flow remained attached to the wing. Two-dimensional PIV measurements were used to qualitatively and quantitatively characterize the spanwise bubble variation on an unswept wing and on the same wing featuring a 22 degree sweep. The separation bubbles were recorded at varied span-wise locations in a 31.5 cm wide region of the flow. The limitations of this measurement region were dictated by the
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Ciccone, Brianne N. "Modeling of Evaporative Losses in Industrial Pasteurization." Youngstown State University / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ysu1339587036.

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Rolland, Romain. "Caractérisation de l'interaction fluide-structure d'un assemblage de coeur de réacteur sous forçage sismique." Electronic Thesis or Diss., Institut polytechnique de Paris, 2022. http://www.theses.fr/2022IPPAE005.

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Dans le cadre des études de sûreté, il est nécessaire de disposer de modèles validés des forces fluides s’exerçant sur des assemblages combustibles en cas de séisme. Dans la technologie REP (réacteur à eau pressurisée) utilisée en France, les assemblages sont constitués de faisceaux de crayons cylindriques disposés en réseau carré et soumis à un écoulement axial. En cas de séisme, ces assemblages sont soumis à des oscillations latérales. Ces vibrations peuvent mener à la déformation des assemblages. Des campagnes d’essais sur assemblage combustible réel ont été réalisées et ont mis en évidence
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Bassan, Rodrigo Augusto [UNESP]. "Visualização experimental de escoamentos no interior de canais munidos de protuberâncias parietais." Universidade Estadual Paulista (UNESP), 2011. http://hdl.handle.net/11449/136024.

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Made available in DSpace on 2016-03-07T19:20:54Z (GMT). No. of bitstreams: 0 Previous issue date: 2011-08-26. Added 1 bitstream(s) on 2016-03-07T19:23:51Z : No. of bitstreams: 1 000859557.pdf: 4186035 bytes, checksum: 8bdc39e13acd7f3473cf85fc408591fa (MD5)<br>Neste trabalho realiza-se um estudo do escoamento no interior de um canal com protuberâncias parietais para números de Reynolds menores que 103. Os ensaios foram conduzidos em um túnel hidrodinâmico vertical. Perfis de velocidade na seção de testes, assim como a intensidade turbulenta do túnel e emissões de vórtices, foram adquiridos po
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Bassan, Rodrigo Augusto. "Visualização experimental de escoamentos no interior de canais munidos de protuberâncias parietais /." Ilha Solteira, 2015. http://hdl.handle.net/11449/136024.

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Orientador: Sérgio Said Mansur<br>Co-orientador: Edson Del Rio Vieira<br>Banca: André Luiz Seixlack<br>Banca: Odenir de Almeida<br>Resumo: Neste trabalho realiza-se um estudo do escoamento no interior de um canal com protuberâncias parietais para números de Reynolds menores que 103. Os ensaios foram conduzidos em um túnel hidrodinâmico vertical. Perfis de velocidade na seção de testes, assim como a intensidade turbulenta do túnel e emissões de vórtices, foram adquiridos por meio da anemometria de fio/filme quente. Técnicas de visualização de escoamentos, também, foram empregadas em diferentes
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Albrektsson, Joakim. "Durability of fire exposed concrete : Experimental Studies Focusing on Sti„ffness & Transport Properties." Licentiate thesis, KTH, Betongbyggnad, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-168386.

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Road and rail tunnels are important parts of the modern infrastructure. High strength concrete (HSC) is commonly used for tunnels and other civil engineering structures, since it allows high load carrying capacity and long service life. In general, Swedish road and rail tunnels should be designed for a service life of 120 years. However, HSC has shown to be sensitive to severe fires in the moist tunnel environment, i.e., fire spalling may occur. Extensive research shows that addition of polypropylene (PP) fibres in the fresh concrete mix significantly reduces the risk of fire spalling. The dur
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Briançon-Marjollet, Laurence. "Couches-limites, germes et cavités en interaction : étude physique." Grenoble 1, 1987. http://www.theses.fr/1987GRE10119.

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Etude en tunnel hydrodynamique de l'influence de la teneur en germes libres de l'eau sur la cavitation se developpant sur un profil bidimensionnel en ecoulement permanent. On etudie le type de cavitation (poche attachee ou bulle separee) et son developpement en fonction de l'incidence du profil, du nombre de reynolds, du parametre de cavitation et de la concentration en germes libres. On determine des zones d'influence des germes. On montre l'importance de la couche limite et du nombre de germes actifs dans la determination du debut de cavitation et du type de cavitation. Application aux machi
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Rouland, Eric. "Etude et développement de la technique de vélocimétrie par intercorrélation d'images de particules. Application aux écoulements en tunnel hydrodynamique." Rouen, 1994. http://www.theses.fr/1994ROUES078.

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La vélocimétrie par intercorrélation d'images de particules (V. I. I. P. ) a fait l'objet d'un développement complet ayant pour but l'étude d'écoulements dans un tunnel hydrodynamique. Elle consiste en une analyse bidimensionnelle par intercorrélation (corrélation-croisée) de deux images prises simultanément par un capteur CCD standard. Ces images sont obtenues en éclairant, par un plan laser, des particules préalablement ensemencées dans l'écoulement. L'algorithme de corrélation-croisée a été comparé au traitement généralement utilisé : l'autocorrélation, et ceci à l'aide d'un programme génér
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Kushwaha, Pushpendra Kumar. "Experimental and Numerical Study on Boundary Layer Growth in Wind Tunnel." Thesis, 2017. http://ethesis.nitrkl.ac.in/8768/1/2017_MT_PK_Kushwaha.pdf.

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When a real fluid flow passes over the surface of a flat plate, the velocity of the fluids on the surface of the object becomes same as that of the object. If object is at rest, the fluid will also have zero velocity because of no slip condition at the boundary. Away from the boundary the velocity increase gradually and reaches to free stream velocity and hence there exists a region closed to the object where velocity gradient exists, this region is known as boundary layer region. The flow in the boundary layer is viscous and rotational. Due to viscous effect shear stress is developed inside t
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Books on the topic "Water tunnel experiments"

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Canada. Defence Research Establishment Atlantic. Flow Visualization Experiments with Submarine Models in A Water Tunnel. s.n, 1986.

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J, Peake D., and Ames Research Center, eds. Vortex breakdown and control experiments in the Ames-Dryden water tunnel. National Aeronautics and Space Administration, Ames Research Center, 1987.

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Book chapters on the topic "Water tunnel experiments"

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Wang, Lei. "Experimental Study on Frost Heave Characteristics of Silty Clay Beneath Operating Stations in Twin Tunnel Freezing." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-2417-8_22.

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AbstractArtificial ground freezing method construction is widely applied in the subway construction in Shanghai. In the project of the twin tunnel freezing method crossing the operating Line 10 station at No.18 Guoquan Road in Shanghai, the tunnel is located in the silty clay with a water content of 38.5%. The frost heave pressure of the silty clay will cause uplift and even cracking of the already operating station. Taking the Shanghai silty clay as the research object, this study investigates the influence of the cold end temperature and conductive temperature on the frost heave pressure of
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Gloerfeld, Mark, Markus Schremb, Antonio Criscione, Suad Jakirlic, and Cameron Tropea. "Impact of Supercooled Drops onto Cold Surfaces." In Fluid Mechanics and Its Applications. Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-031-09008-0_16.

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AbstractIce accretion resulting from the impact of supercooled water drops is a hazard for structures exposed to low temperatures, for instance aircraft wings and wind turbine blades. Despite a multitude of studies devoted to the involved phenomena, the underlying physical processes are not yet entirely understood. Hence, modelling of the conditions for ice accretion and prediction of the ice accretion rate are presently not reliable. The research conducted in this study addresses these deficiencies in order to lend insight into the physical processes involved. While presenting an overview of
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Gao, Ang, Xiufeng Wu, Shiqiang Wu, Hongpeng Li, Jiangyu Dai, and Fangfang Wang. "Study on Wind Waves Similarity and Wind Waves Spectrum Characteristics in Limited Waters." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-6138-0_107.

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AbstractWind waves is an important factor affecting navigation safety and water environment in limited waters such as lakes and bays. Wind wave spectrum represents the frequency domain features of wind waves and has always been the focus of research. Based on the field observation and flume experimental method, the system analysis of similarity of two kinds of situations, discussed nonlinear response of the relationship of the spectral shape parameter of balance field α, β and wind waves basic frequency between factors like wind speed, wind blowing fetch and water depth. By means of wind tunne
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Neu, Gerrit Emanuel, Florian Christ, Tagir Iskhakov, et al. "Tunnel Linings." In Interaction Modeling in Mechanized Tunneling. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-24066-9_5.

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AbstractIn this chapter, important research results for the development of a robust and damage-tolerant multimaterial tunnel lining are presented. This includes the production, design and optimization of fiber-reinforced hybrid segmental lining systems based on numerical models and experimental investigations under tunneling loads. In addition, novel tail void grouting materials are developed and optimized regarding their infiltration and hardening behavior while taking the interaction with the surrounding ground into account. In order to expand the applicability of mechanized tunneling regard
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Sha, Haifei, Lili Fan, Shiqiang Wu, Hui Zhou, and Huiling Chen. "Experimental Studies on Aeration Performance of Hydraulic Tunnel Excavation." In Advances in Water Resources and Hydraulic Engineering. Springer Berlin Heidelberg, 2009. http://dx.doi.org/10.1007/978-3-540-89465-0_113.

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Zalrusli, M. I., A. Rahim, K. Ramanathan, R. A. Abdullah, T. L. Goh, and W. M. W. Ibrahim. "Experimental Analysis of Geological Structure to the Water Intrusion into Tunnel." In Springer Proceedings in Physics. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9267-4_49.

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Wu, Jianqiu, Lei Han, and Xingjie Fang. "Experimental and numerical study on the bending behavior of cup joints of prefabricated utility tunnel." In Water Conservancy and Civil Construction Volume 1. CRC Press, 2023. http://dx.doi.org/10.1201/9781003450818-56.

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Ledesma, A., and A. Gens. "Inverse Analysis of a Tunnel Excavation Problem from Displacement and Pore Water Pressure Measurements." In Material Identification Using Mixed Numerical Experimental Methods. Springer Netherlands, 1997. http://dx.doi.org/10.1007/978-94-009-1471-1_17.

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Xu, Lina, Tatenda Kelvin Gomba, Lei Niu, and Daohan Song. "Experimental Study on the Influence of Erosive Solution on Unconfined Compressive Strength of Fiber Reinforced Cemented Soil." In Lecture Notes in Civil Engineering. Springer Nature Singapore, 2024. http://dx.doi.org/10.1007/978-981-97-2417-8_31.

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AbstractMany erosive environments, such as acidic or various salts, can cause damage to structures like roads, tunnels, and buildings. Various tests were conducted to investigate how the strength of cemented soil is affected by different soaking periods, types of saline solutions, and fibers. Samples including and excluding basalt fibers were tested in water, acid, and salt solutions for 1, 8, 19, 39, and 54 days. The results show that the strength of cemented soil soaked in clear water gradually increases with the increase of maintenance days, which is the development law of strength of cemen
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Zhao, Xing, Wenjiao Zhang, Zhongmei Wang, Mingcong Lv, and Caiping Wu. "Experimental Study on Hydraulic Characteristics of Swirl Shaft Water Diversion Tunnel with Super High Head." In Sustainable Civil Infrastructures. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-90717-3_77.

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Conference papers on the topic "Water tunnel experiments"

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Schmitz, Sven, Marilyn Smith, Louis Centolanza, and David Reich. "First Rotor Hub Flow Prediction Workshop Experimental Data Campaigns and Computational Analyses." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12000.

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The rotor hub can account for up to thirty percent of rotorcraft parasite drag. Therefore, reducing hub drag is mandatory to advance the scientific knowledge necessary for future high-speed conventional and compound rotorcraft. The importance of high-Reynolds number testing of rotor hub flows is paramount as turbulent coherent structures persist up to the long-age wake where they interact with the empennage and tail, an observation impossible to make in experiments at lower Reynolds scale due to viscous dissipation. Basic Vertical Lift Center of Excellence (VLRCOE) research at Penn State in wa
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Jung, Yong Su, James Baeder, Pavithra Premaratne, et al. "Computational Analyses of Coaxial Rotor Hub Flows and Correlation with Experiment." In Vertical Flight Society 81st Annual Forum and Technology Display. The Vertical Flight Society, 2025. https://doi.org/10.4050/f-0081-2025-249.

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This study presents computational analyses of coaxial rotor hub flows and validation against experimental data obtained from the fifth Rotor Hub Flow Prediction Workshop. Experiments were conducted in a 12-inch diameter water tunnel at Pennsylvania State Applied Research Laboratory, employing tomographic particle-image velocimetry (Tomo-PIV) and precise hub drag measurements. Three CFD codes (UMD Mercury, CREATETM-AV Helios, and OVERFLOW) utilizing hybrid Reynolds-Averaged Navier-Stokes (RANS) / Large Eddy Simulation (LES) modeling based on Spalart–Allmaras turbulence model, were applied to re
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Potsdam, Mark, Philip Cross, and Matthew Hill. "Assessment of Create-AV Helios for Complex Rotating Hub Wakes." In Vertical Flight Society 73rd Annual Forum & Technology Display. The Vertical Flight Society, 2017. http://dx.doi.org/10.4050/f-0073-2017-12008.

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Experimental data from high Reynolds number water tunnel experiments conducted at the Pennsylvania State University of a de-featured helicopter hub are compared with unsteady computational fluid dynamics (CFD) analyses using CREATE-AV Helios. CFD hub modeling employs a Spalart-Allmaras Detached Eddy Simulation (SA-DES) model. Different off-body wake treatments (baseline SA-DES, coarse off-body SA-DES, and inviscid) are computed. Total hub drag is predicted within 7%, while peak-to-peak loads, azimuthal variation and frequency content are accurately captured. Drag breakdown and frequency conten
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Wilson, Michael. "Simulation of Ship Wakes in Water Tunnel Cavitation Testing of Models." In SNAME 22nd American Towing Tank Conference. SNAME, 1989. http://dx.doi.org/10.5957/attc-1989-005.

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Reliable cavitation testing of ship propulsors requires accurate modelling of the ship wake velocity field. This paper presents a progress report on efforts at the David Taylor Research Center (DTRC) to generate properly shaped velocity patterns in a water tunnel by means of partial length afterbody models. A survey of references is presented on the general topic of applications and techniques of wake simulation in water tunnels using a variety of means, including screens mounted normal to the tunnel stream; partial length (dummy model) hull representations; and full length geometrically scale
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Kremheller, Andreas, and Hermann Fasel. "Water Tunnel Experiments on Three Dimensional Separation Bubbles on a Flat Plate." In 40th Fluid Dynamics Conference and Exhibit. American Institute of Aeronautics and Astronautics, 2010. http://dx.doi.org/10.2514/6.2010-4738.

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Freund, Jr., G. A., F. M. Dickey, R. Elangovan, M. D. Breer, and M. Papadakis. "Automated Optical Instrument For Extracting Water Droplet Impingement Data From Wind Tunnel Experiments." In 31st Annual Technical Symposium. SPIE, 1987. http://dx.doi.org/10.1117/12.978884.

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Xie, Wei-Qiang, Xiao-Ping Zhang, Xiao-Li Liu, Rui-Peng Qian, and Quan-Sheng Liu. "TBM Tunnelling Under Adverse Geological Conditions: Case Study of a Long-Distance and Deep-Buried Water Conveyance Tunnel." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-1142.

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ABSTRACT: The adverse geological conditions have significant influences on the safety and efficiency of tunnel boring machine (TBM) tunnelling. Feasible solutions for TBM tunnelling under adverse geological conditions are summarized based on a long-distance and deep-buried water conveyance tunnel. The engineering background of the tunnel is briefly presented. Then the challenges of TBM tunnelling encountered in adverse geological conditions are highlighted, including fractured and faulted rock mass, squeezing rock mass and deep-buried rock mass. Series of solutions carried out successfully in
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Yamaguchi, Yuki, and Yuka Iga. "Thermodynamic Effect on Cavitation in High Temperature Water." In ASME 2014 4th Joint US-European Fluids Engineering Division Summer Meeting collocated with the ASME 2014 12th International Conference on Nanochannels, Microchannels, and Minichannels. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/fedsm2014-21433.

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Thermodynamic effect on cavitation appears in cryogenic fluids, refrigerant and high temperature water. The thermodynamic effect is considered to suppress the development of cavitation and improve the performance of hydraulic machinery. However, the actual appearance degree of thermodynamic effect depends on not only thermal property of each fluid but also each hydraulic machinery and its operating condition. So, the clarification of the influence of the flow field with unsteady cavitation on the degree of thermodynamic effect is necessary. In order to investigate thermodynamic effect, many ex
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Yoon, Hyun-Se, Dug-Soo Kim, Wu-Joan Kim, Museok Song, Hyoung-Tae Kim, and Suak-Ho Van. "Experimental Study on the Drag Reduction by Injection of Microbubble and Polymer Solution in a Water Tunnel for Water-Borne Vehicles." In ASME/JSME 2003 4th Joint Fluids Summer Engineering Conference. ASMEDC, 2003. http://dx.doi.org/10.1115/fedsm2003-45651.

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Experiments on the friction drag reduction by injecting microbubbles or polymer solutions have been carried out for both a flat wall and an axisymmetric body. In the first setup, the drag reduction on the flat ceiling of a water channel was measured for a fully developed turbulent channel flow by using a newly developed skin friction sensor of floating element type. The effects of key controlling parameters were investigated for higher drag reduction with varying the concentration and the injection rate of the additives. The integrated frictional drag has been reduced up to 25% with the microb
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Nagaya, Shigeki, Risa Kimoto, Kenji Naganuma, and Takayuki Mori. "Observation and Scaling of Tip Vortex Cavitation on Elliptical Hydrofoils." In ASME-JSME-KSME 2011 Joint Fluids Engineering Conference. ASMEDC, 2011. http://dx.doi.org/10.1115/ajk2011-33015.

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Experimental study on tip vortex cavitation (TVC) was carried out for elliptical hydrofoils with various chord lengths. The purpose of the experiment was to clarify the influences of Reynolds number and water quality on tip vortex cavitation. Experiments were made in a large cavitation tunnel of the Naval Systems Research Center, TRDI/Ministry of Defense Japan. The elliptical hydrofoils tested were NACA 0012 cross section with chord lengths of 500mm, 250mm and 50mm. Reynolds number based on hydrofoil chord length was 2×105 &lt; ReC &lt; 7.4×106. Water quality of the tunnel was characterized by
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