Numerical Simulation of Viscous Cavitating Flow Around A Ship Propeller

Abstract：In the present study,cavitation and a ship propeller wake are reported by computed fluid dynamics based on viscous multiphase flow theory.Some recent validation results with a hybrid grid based on unsteady Navier-Stokes (N-S) and bubble dynamics equations are presented to predict velocity,pressure and vapor volume fraction in propeller wake in a uniform inflow.Numerical predictions of sheet cavitation,tip vortex cavitation and hub vortex cavitation are in agreement with the experimental data,same as numerical predictions of longitudinal and transversal evolution of the axial velocity.Blade and shaft rate frequency of propeller is well predicted by the computed results of pressure,and tip vortex is the most important to generate the pressure field within the near wake.The overall results indicate that the present approach is reliable for prediction of cavitation and propeller wake on the condition of uniform inflow. 作者： Author： ZHU Zhi-feng[1]  FANG Shi-liang[2]  WANG Xiao-yan[2]  MENG Zhao-wen[3]  LIU Ping-xiang[3]  DU Xuan-min[3] 作者單位： Key Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University, Nanjing 210096, China;School of Electrical Engineering and Information, Anhui University of Technology, Maanshan 243002, ChinaKey Laboratory of Underwater Acoustic Signal Processing of Ministry of Education, Southeast University, Nanjing 210096, ChinaScience and Technology on Acoustic Antagonizing Laboratory, Shanghai Marine Electronic Equipment Research Institute, Shanghai 201108, China 期 刊： 中國海洋工程（英文版）   ISTICEISCI Journal： China Ocean Engineering 年，卷(期)： 2011, 25(3) 分類號(hào)： U664.33 Keywords： cavitating flow    RANS    propeller    sliding mesh    multiphase flow    機(jī)標(biāo)分類號(hào)： TH1 TU5 機(jī)標(biāo)關(guān)鍵詞： Ship    results    experimental data    velocity    sheet cavitation    volume fraction    multiphase flow    bubble dynamics    pressure field    fluid dynamics    Navier-Stokes    based    agreement    approach    hybrid    study    ship    grid    hub 基金項(xiàng)目： Numerical Simulation of Viscous Cavitating Flow Around A Ship Propeller[期刊論文]  中國海洋工程（英文版） --2011, 25(3)In the present study,cavitation and a ship propeller wake are reported by computed fluid dynamics based on viscous multiphase flow theory.Some recent validation results with a hybrid grid based on unst...

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