| NUMERICAL SIMULATIONS OF 2D PERIODIC UNSTEADY CAVITATING FLOWS |
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| 作者姓名： | WU Lei LU Chuan-jing LI Jie CHEN Xin |
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| 作者单位： | WU Lei，LU Chuan-jing，LI Jie，CHEN Xin Department of Engineering Mechanics，Shanghai Jiaotong University，Shanghai 200240，China |
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| 基金项目： | 国家高技术研究发展计划(863计划);国家重点实验室基金 |
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| 摘 要： | 1. INTRODUCTION Cavitation is a natural phenomenon especially existing in liquids. A cavitating flow generally involves a large number of vapor structures such as bubbles or vortices which are convecting downstream. When they reach high pressure zones, th…
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| 关 键 词： | 空化流 变量密度Navier-Stokes方程 周期空穴 水翼 |
| 收稿时间： | 2005-04-18 |
NUMERICAL SIMULATIONS OF 2D PERIODIC UNSTEADY CAVITATING FLOWS |
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| WU Lei LU Chuan-jing LI Jie CHEN Xin.NUMERICAL SIMULATIONS OF 2D PERIODIC UNSTEADY CAVITATING FLOWS[J].Journal of Hydrodynamics,2006,18(3):341-344. |
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| Authors: | WU Lei LU Chuan-jing LI Jie CHEN Xin |
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| Affiliation: | 1. Department of Aerospace Engineering, The Pennsylvania State University, State College, PA 16802, USA;2. Applied Research Laboratory, The Pennsylvania State University, PO Box 30, State College, PA 16804, USA |
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| Abstract: | 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. |
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| Keywords: | unsteady cavitating flow variable-density Navier-Stokes equations periodic cavity break-off and shedding hydrofoil |
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