带有压力梯度的平板边界层转捩数值模拟

董平; 黄洪雁; 冯国泰

带有压力梯度的平板边界层转捩数值模拟

哈尔滨工业大学能源科学与工程学院, 哈尔滨 150001

基金项目: 国家自然科学基金(50476028);国家自然科学基金(50576017)

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出版历程
- 收稿日期: 2006-11-06
- 修回日期: 2007-01-11
- 刊出日期: 2007-11-28

Numerical simulation of boundary layer transition under pressure gradient

School of Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

摘要

摘要: 对零压力梯度和带有压力梯度的平板边界层转捩实验T3A,T3C1和T3C2进行了数值模拟,计算结果与实验值吻合的较好,并得出以下的结论:压力梯度的存在对转捩起始的位置有较大的影响;M-L转捩模型能比较准确地预测转捩的发生和发展过程,但M-L一方程转捩模型因为要根据经验选取转捩起始动量厚度雷诺数,所以在通用性上相对M-L二方程转捩模型要弱;使用M-L转捩模型计算过程中,根据湍流的性质选取进口粘性比有助于正确地预测转捩的发展过程.
- 航空、航天推进系统 /
- 压力梯度 /
- 平板边界层转捩 /
- 转捩模型 /
- 数值模拟
Abstract: Numerical simulation was performed for the flat plate boundary layer transition test at zero and non-zero pressure gradients,T3A,T3C1 and T3C2.The results have been validated through the experimental data,showing that the pressure gradient could have great influence upon the starting position of transition process;MLtransition model could predict accurately the transition and development process.However,the applicability of M-Lone-equation transition model is limited as compared with M-Ltwo-equation transition model,since it depends on how to correctly choose the transition onset momentum thickness Reynolds number by experiences.During calculation with M-Ltransition model,selecting the import viscosity based on the nature of vortex assists in predicting the transition process.
- aerospace propulsion system /
- pressure gradient /
- flat plate boundary layer transition /
- transition model /
- numerical simulation

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参考文献(8)

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