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Near-bed hydrodynamics associated with the entrainment of coarse particles at different protrusion heights被引量：1: 《Journal of Hydrodynamics》2022年第6期1067-1080,共14页Yushu Xie Bruce W.Melville Asaad Y.Shamseldin Colin N.Whittaker Yifan Yang; the financial support of the Chinese Scholar Council(CSC)and The University of Auckland.; This paper presents an investigation of near-bed hydrodynamics for a protruding coarse particle over a regular roughened bed.The laboratory experiments were undertaken at the threshold flow condition,which induced dis...; 关键词：ENTRAINMENT particle protrusion flow structure shear stress quadrant analysis

Hidden flow structures in compressible mixing layer and a quantitative analysis of entrainment based on Lagrangian method被引量：6: 《Journal of Hydrodynamics》2019年第2期256-265,共10页Geng Liang Bin Yu Bin Zhang Hui Xu Hong Liu; the National Natural Science Foundation of China(Grant Nos.91741113,91841303).; The compressible mixing layer is an important physical model to describe the mixing enhancement in scramjet combustors.The downstream coherent structures are normally regarded as the main contribution of the entrainme...; 关键词：COMPRESSIBLE mixing layer LAGRANGIAN coherent structure(LCS) FINITE-TIME Lyapunov exponent(FTLE)

Air entrainment and detrainment downstream a chute aerator: 《Journal of Hydrodynamics》2019年第1期76-82,共7页Rui-di Bai Fa-xing Zhang Wei Wang Shan-jun Liu; the National Key Research and Development Program (Grant No.2016YFC0401707);the National Natural Science Foundation of China (Grant Nos.51709293,51479129).; The chute aerators separate the flow from the chute bottom,and the air can enter into the flow through the lower surface.In this study,the air concentration and the pressure along the chute bottom are investigated sys...; 关键词：CHUTE AERATOR AIR CONCENTRATION ENTRAINMENT detrainment

Revisit submergence of ice blocks in front of ice cover–an experimental study被引量：3: 《Journal of Hydrodynamics》2018年第2期336-344,共9页Jun Wang Yi-fan Wu Jueyi Sui; Project supported by the National Natural Science Foundation of China(Grant No.51379054); The present paper studies the stabilities of ice blocks in front of an ice cover based on experiments carried out in laboratory by using four types of ice blocks with different dimensions. The forces acting on the ice...; 关键词：Criteria for entrainment ice Froude number ice block ice cover dimension of ice block

Mechanics of granular column collapse in fluid at varying slope angles被引量：3: 《Journal of Hydrodynamics》2017年第4期529-541,共13页K.Kumar J.-Y.Delenne K.Soga; the Cambridge Commonwealth, Overseas Trust and the ShellCambridge-Brazil collaboration for the financial support to pursue this research; This paper investigates the effect of initial volume fraction on the runout characteristics of collapse of granular columns on slopes in fluid. 2-D sub-grain scale numerical simulations are performed to understand the...; 关键词：Lattice Boltzmann method（LBM） discrete element method（DEM） granular column collapse granular flows hydroplaning water entrainment viscous drag

EFFECT OF A PROPELLER AND GAS DIFFUSION ON BUBBLE NUCLEI DISTRIBUTION IN A LIQUID被引量：8: 《Journal of Hydrodynamics》2012年第6期809-822,共14页HSIAO Chao-Tsung CHAHINE Georges L.; supported by the Office of Naval Research(Grant No.N00014-05-C-0170) monitored by Dr.Patrick L.Purtell; A multi-bubble dynamics code accounting for gas diffusion in the liquid and through the bubble wall was developed and used to study the modification of a bubble nuclei population dynamics by a propeller. The propeller...; 关键词：gas diffusion bubble entrainment PROPELLER

EXPERIMENTAL STUDY ON THE VORTEX FORMATION AND ENTRAINMENT CHARACTERISTICS FOR A ROUND TRANSVERSE JET IN SHALLOW WATER被引量：7: 《Journal of Hydrodynamics》2009年第3期386-393,共8页FAN Jing-yu ZHANG Yan WANG Dao-zeng; supported by the National Natural Science Foundation of China (Grant No. 10572084);the Shanghai Pujiang Program (Grant No. 08PJ14054);the Innovation Program of Shanghai Municipal Education Commission (Grant No. 09 YZ01); The vortex formation and entrainment characteristics for a round transverse jet in shallow water were experimentally investigated by means of a combination of LIF flow visualization and PIV measurement. A scarf vortex...; 关键词：transverse jet shallow water vortex formation ENTRAINMENT PIV measurement

EXPERIMENTAL STUDY OF UNSTEADY CHARACTERISTICS OF TURBULENT MIXING LAYER FLOW OVER AN OPEN STEP AND A SQUARE-EDGED RIB: 《Journal of Hydrodynamics》2007年第6期786-786,共1页KE Feng Chen Han-ping Liu Ying-zheng He You-sheng Wu Ming-lan Zhou Lian-di Tao Ming-de Liu Yu-lu; Spatio-temporal characteristics of the wall-bounded turbulent mixing layer flow over an open step and a square-edged rib were extensively studied in a low-speed wind tunnel. Simultaneous measurements of wall-pressure ...; 关键词：ENTRAINMENT turbulent flow UNSTEADY wall pressure fluctuations large-scale vortical structures

LARGE-EDDY SIMULATION OF THREE-DIMENSIONAL VORTICAL STRUCTURES FOR AN IMPINGING TRANSVERSE JET IN THE NEAR REGION被引量：8: 《Journal of Hydrodynamics》2007年第3期314-321,共8页FAN Jing-yu ZHANG Yan WANG Dao-zeng; Project supported by the National Natural Science Foundation of China (Grant No. 10572084);Shanghai Leading Academic Discipline Project (Grant No. Y0103); The three-dimensional vortical structures for an impinging transverse jet in the near region were numerically investigated by means of Large-Eddy Simulation （LES）. The LES results reproduced the skewed jet shear lay...; 关键词：Large-Eddy Simulation （LES） impinging jet CROSSFLOW vortical structure ENTRAINMENT

WALL PRESSURE FLUCTUATIONS OF TURBULENT FLOW OVER BACKWARD-FACING STEP WITH AND WITHOUT ENTRAINMENT: MICROPHONE ARRAY MEASUREMENT被引量：1: 《Journal of Hydrodynamics》2006年第4期393-396,共4页KE Feng LIU Ying-zheng WANG Wei-zhe CHEN Han-ping; Wall pressure fluctuations in turbulent boundary layer flow over backward-facing step with and without entrainment were investigated. Digital array pressure sensors and multi-arrayed microphones were employed to acqui...; 关键词：backward-facing step turbulent boundary layer ENTRAINMENT wall pressure fluctuations Microphone Array

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