NUMERICAL SIMULATIONS OF 2D PERIODIC UNSTEADY CAVITATING FLOWS  

作　　者：WU Lei LU Chuan-jing LI Jie CHEN Xin 

机构地区：[1]Department of Engineering Mechanics, Shanghai Jiaotong University, Shanghai 200240, China

出　　处：《Journal of Hydrodynamics》2006年第3期341-344,共4页水动力学研究与进展B辑（英文版）

基　　金：Project supported by the National Natural Science Foundation of China (Grant No: 10372061) and the National Defense Key Laboratory on Hydrodynamics

摘　　要：A two-phase mixture model was established to study unsteady cavitating flows. A local compressible system of equations was derived by introducing a density-pressure function to account for the two-phase flow of water/vapor and the transition from one phase to the other. An algorithm for solving the variable-density Navier-Stokes equations of cavitating flow problem was put forward. The numerical results for unsteady characteristics of cavitating flows on a 2D NACA hydrofoil coincide well with experimental data.A two-phase mixture model was established to study unsteady cavitating flows. A local compressible system of equations was derived by introducing a density-pressure function to account for the two-phase flow of water/vapor and the transition from one phase to the other. An algorithm for solving the variable-density Navier-Stokes equations of cavitating flow problem was put forward. The numerical results for unsteady characteristics of cavitating flows on a 2D NACA hydrofoil coincide well with experimental data.

关 键 词：unsteady cavitating flow variable-density Navier-Stokes equations periodic cavity break-off and shedding HYDROFOIL 

分 类 号：O35[理学—流体力学]