基于k-ω SST模型的DES方法在空化流动计算中的应用

中国机械工程 ›› 2010, Vol. 21 ›› Issue (1): 85-89.

基于k-ω SST模型的DES方法在空化流动计算中的应用

黄彪;王国玉

北京理工大学，北京，100081

出版日期:2010-01-10 发布日期:2010-01-22
基金资助:
国家自然科学基金资助项目(50679001)；高等学校博士学科点专项科研基金资助项目(20070007047)
National Natural Science Foundation of China（No. 50679001）;
Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20070007047）

Application of a SST-DES Turbulence Model for Computation of Cavitating Flows

Huang Biao;Wang Guoyu

Beijing Institute of Technology, Beijing, 100081

Online:2010-01-10 Published:2010-01-22
Supported by:

National Natural Science Foundation of China（No. 50679001）;
Specialized Research Fund for the Doctoral Program of Higher Education of China（No. 20070007047）

摘要/Abstract

摘要：

基于试验结果评价了基于k-ω SST两个方程的DES湍流模型在空化流动中的应用，分别计算了绕Clark-y型水翼云状空化与Hydronautics型水翼超空化流动，获得了随时间变化的空穴形态与流场结构细节。通过与试验结果对比发现，DES方法对于高雷诺数的绕水翼空化流动的预测是合理的，可以准确地模拟出空穴形态的非定常特性和空泡团交替脱落的非定常细节。

关键词:

DES湍流模型, 云状空化, 超空化, 非定常特性

Abstract:

To assess the DES model based on k-ω SST turbulence model, a cloud cavitating flow around a Clark-y hydrofoil and the supercavitation flow around the Hydronautics hydrofoil were numerically simulated. The time evolutions of the shape of cloud cavities have been obtained, and compared with experimental results. It is shown that the DES model can successively predict the characteristics of cavitation and the detail process of the cavitation shedding.

Key words: detached eddy simulation(DES) turbulence model, cloud cavitation, supercavitation;unsteady characteristic

中图分类号:

TV131.32

黄彪, 王国玉.

基于k-ω SST模型的DES方法在空化流动计算中的应用

[J]. 中国机械工程, 2010, 21(1): 85-89.

HUANG Biao, WANG Guo-Yu.

Application of a SST-DES Turbulence Model for Computation of Cavitating Flows

[J]. China Mechanical Engineering, 2010, 21(1): 85-89.