| 四种湍流模型对空化流动模拟的比较 |
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| 引用本文： | 钱忠东,黄社华.四种湍流模型对空化流动模拟的比较[J].水科学进展,2006,17(2):203-208. |
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| 作者姓名： | 钱忠东 黄社华 |
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| 作者单位： | 武汉大学水利水电学院水资源与水电工程科学国家重点实验室, 湖北, 武汉, 430072 |
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| 摘 要： | 采用四种湍流模型对NACA66水翼空化流动进行模拟,分析了不同湍流模型和壁面函数对空化流动模拟结果的影响.分析结果表明:ASM模型和RNG k-ε模型对空化数不敏感,且计算精度较高;Realizable k-ε模型对空化数的变化很敏感,对不同的空化数计算精度相差很大;标准k-ε模型对空化数不敏感,但精度不高.增强壁面函数法对空化数不敏感,计算精度较高;标准壁面函数法和非平衡壁面函数法对空化数有一定的敏感性,但计算结果差异不大.
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| 关 键 词： | 空化 湍流模型 壁面函数 数值模拟 |
| 文章编号： | 1001-6791（2006）02-0203-06 |
| 收稿时间： | 2004-10-26 |
| 修稿时间： | 2005-04-17 |
Comparison and analysis of computed results for cavitating flow with four turbulence models |
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| QIAN Zhong-dong,HUANG She-hua.Comparison and analysis of computed results for cavitating flow with four turbulence models[J].Advances in Water Science,2006,17(2):203-208. |
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| Authors: | QIAN Zhong-dong HUANG She-hua |
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| Institution: | State Key Laboratory of Water Resources and Hydropower Engineering Science, School of Water Resources and Hydropower, Wuhan University, Wuhan 430072, China |
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| Abstract: | Four different turbulence models are used to simulate the cavitating flow around a hydrofoil(NACA66),and the influence of turbulence models on the computational results is analyzed.The computed and analyzed results show that:the ASM model and the RNG k-ε model are more stable than the Realizable k-ε model and accurate than the standard k-ε model with the change of cavitation number,and the enhanced wall function is more stable and more accurate than the standard wall function and the non-equilibrium wall function. |
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| Keywords: | cavitation turbulence model wall function numerical simulation |
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