Results 61 to 70 of about 4,556 (210)
Integrated Turbulence and Machine Learning Models Explain Pier Scour in Erodible Channels
Water Resources Research, Volume 61, Issue 9, September 2025.Abstract Pier scour, a primary cause of bridge failures, stems from turbulent erosion at the pier's approach surface, jeopardizing bridge stability and influencing both river morphology and interactions between aquatic and terrestrial ecosystems. The scouring process, initiated by turbulent eddies interacting with sediments over erodible channels ...
Shuolin Li
wiley +1 more source
Energy Science &Engineering, Volume 13, Issue 8, Page 3954-3978, August 2025.To accurately determine the pressure fluctuation characteristics of a specific self‐priming pump, a full three‐dimensional computational model was established, including the S‐tube, impeller domain, volute domain, gas‐liquid separation chamber, front and rear cavities, wear ring clearance, and reflux hole.
Hai‐Bing Jiang +5 more
wiley +1 more source
DEVELOPMENT OF THE KARMAN VORTEX STREET DUE TO THE NATURAL CONVECTION
JOURNAL OF THE FLOW VISUALIZATION SOCIETY OF JAPAN, 1985 Investigation in the present paper has been made theoretically and experimentally on a development of the Karman vortex street due to the natural convection in an opposing flow. Unsteady numerical solutions are obtained by means of a time-dependent numerical analysis.
Katsuhisa NOTO +3 more
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Research on swimming hydrodynamics based on a three‐dimensional high‐precision fish model
River, Volume 4, Issue 3, Page 341-350, August 2025.Abstract Fish swimming hydrodynamics serves as a critical foundation for aquatic ecological conservation, with recent research extending from 2D to 3D perspectives. This study employs 3D high‐fidelity modeling with dynamic mesh technology to investigate how cylindrical obstacles at varying positions affect Carassius auratus locomotion. Analysis of nine
Lin Sun +4 more
wiley +1 more source
Numerical study of the incompressible flow around a particle with roughness [PDF]
, 2019 Estudio mediante simulación en el programa CFD de una partícula con forma de cilindro circular por la que pasa un flujo incomprensible. Inicialmente, se realiza el estudio de la partícula con superficie perfectamente lisa para números de Reynolds de 80 y
Ríos Llamas, Judit
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Hollow vortices and minimal surfaces [PDF]
, 2014 We consider an overdetermined elliptic problem known as the hollow vortex problem. We prove that the solutions to this problem are in 1:1 correspondence with minimal graphs bounded by horizontal symmetry lines.
Martin Traizet, Van Dyke M.
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A Turbulence Model for Velocity Distribution in Open‐Channel Flows Through Mangrove Trees
Water Resources Research, Volume 61, Issue 8, August 2025.Abstract The vertical distribution of flow velocity plays a critical role in sediment transport and nutrient circulation within mangrove forests, characterized by their intricate root structures. Existing velocity profile models typically rely on a single mixing length scale, limiting their ability to capture the energy distribution of turbulent eddies
Zerun Tang +4 more
wiley +1 more source
Numerical Simulation of three-dimensional flow around a circular cylinder of finite length
Zhongguo Jianchuan Yanjiu, 2018 [Objectives]In this paper, in order to study the flow characteristics and mechanism of three-dimensional flow around a circular cylinder of finite length,[Methods] a numerical simulation using a Large Eddy Simulation (LES) and vortex structural ...
WANG Xiaocong, GUI Hongbin, LIU Yang
doaj +1 more source
Stability of a vortex street of finite vortices [PDF]
, 1982 The stability of the finite-area Kármán ‘vortex street’ to two-dimensional disturbances is determined. It is shown that for vortices of finite size there exists a finite range of spacing ratio κ for which the array is stable to infinitesimal disturbances.
Saffman, P. G., Schatzman, J. C.
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A Piezoelectric Energy Harvester Based on Pressure Fluctuations in Karman Vortex Street [PDF]
Linköping Electronic Conference Proceedings, 2011 We have developed a n ew energy harvester for harnessing energy from the Karman vortex street behind a b luff body in a water flow. I t converts flow energy into electrical energy through oscillation of a piezoelectric film. Oscillation of the piezoelectric film is induced by pressure fluctuation in the Karman vortex street.
Dung-An Wang +3 more
openaire +1 more source