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绕振荡水翼流动及其转捩特性的数值计算研究

吴钦 王国玉 黄彪

吴钦, 王国玉, 黄彪. 绕振荡水翼流动及其转捩特性的数值计算研究[J]. 力学学报, 2014, 46(1): 60-69. doi: 10.6052/0459-1879-13-080
引用本文: 吴钦, 王国玉, 黄彪. 绕振荡水翼流动及其转捩特性的数值计算研究[J]. 力学学报, 2014, 46(1): 60-69. doi: 10.6052/0459-1879-13-080
Wu Qin, Wang Guoyu, Huang Biao. NUMERICAL METHODS AND TRANSITION INVESTIGATION OF TRANSIENT FLOWS AROUND A PITCHING HYDROFOIL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(1): 60-69. doi: 10.6052/0459-1879-13-080
Citation: Wu Qin, Wang Guoyu, Huang Biao. NUMERICAL METHODS AND TRANSITION INVESTIGATION OF TRANSIENT FLOWS AROUND A PITCHING HYDROFOIL[J]. Chinese Journal of Theoretical and Applied Mechanics, 2014, 46(1): 60-69. doi: 10.6052/0459-1879-13-080

绕振荡水翼流动及其转捩特性的数值计算研究

doi: 10.6052/0459-1879-13-080
基金项目: 国家自然科学基金资助项目(11172040,51239005).
详细信息
    作者简介:

    王国玉,教授,主要研究方向:流体机械及空化理论研究.

  • 中图分类号: O357.5

NUMERICAL METHODS AND TRANSITION INVESTIGATION OF TRANSIENT FLOWS AROUND A PITCHING HYDROFOIL

Funds: The project was supported by the National Natural Science Foundation of China (11172040, 51239005).
  • 摘要: 通过对比标准k-ω SST 湍流模型和基于标准k-ω SST 湍流模型修正的γ-Reθ 转捩湍流模型对绕振荡NACA66 水翼流动的数值计算结果与实验结果,对水翼振荡过程的水动力特性和流场结构变化进行了分析研究. 结果表明:与标准k-ω SST 湍流模型的数值计算结果相比,基于标准k-ω SST 湍流模型修正的γ-Reθ 转捩湍流模型能有效预测绕振荡翼型流场结构和水动力特性,捕捉流场边界层发生的流动分离和转捩现象;绕振荡水翼的流动过程可分为5 个特征阶段,当来流攻角较小时,在水翼前缘发生层流向湍流的转捩现象,水翼动力特征曲线出现变化拐点;随着来流攻角的增大,顺时针尾缘涡逐渐形成并向水翼前缘发展;当攻角较大时,前缘涡分离导致动力失速,水翼的动力特征曲线出现大幅波动;水翼处于顺时针向下旋转阶段,绕水翼的流动状态逐渐由湍流过渡为层流.

     

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出版历程
  • 收稿日期:  2013-03-09
  • 修回日期:  2013-04-19
  • 刊出日期:  2014-01-18

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