关于一个新型转捩模式的研究与应用

孙振旭; 赵晓利; 宋婧婧; 杜特专

doi:10.3879/j.issn.1000-0887.2009.12.007

关于一个新型转捩模式的研究与应用

doi: 10.3879/j.issn.1000-0887.2009.12.007

1.
北京大学工学院,北京大学湍流与复杂系统研究国家重点实验室,北京 100871;2.清华大学航天航空学院,北京 100084;3.中国科学院力学研究所,北京 100190

基金项目: “十一五”国家科技支撑计划支持项目(2009BAG12A01)

详细信息

作者简介:
孙振旭(1983- ),男,山东人,博士(E-mail:sunzhenxu@gmail.com);杜特专(1983- ),男,福建厦门人,研究实习员,硕士(联系人.E-mail:dutezhuan@imech.ac.cn).

中图分类号: O343.8
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出版历程
- 收稿日期: 2008-05-05
- 修回日期: 2009-10-26
- 刊出日期: 2009-12-15

Numerical Investigation on a Transition Prediction Model

1.
State Key Laboratory for Turbulence and Complex Systems, College of Engineering, Peking University, Beijing 100871, P. R. China;

摘要

摘要: 采用了新型的转捩预测模式，将间歇因子耦合到湍流脉动输运方程中去，计及流体转捩的内在因素，因而能够反映转捩的具体发展过程．以二维不可压平板边界层和二维NACA0012翼型为例，研究了该转捩模式在预测不可压转捩流动时的作用，得到与实验值符合良好的计算结果．同时也研究了该转捩模式在不同网格分辨率下的计算能力和对近壁面网格分辨率的要求．
- 转捩 /
- 湍流模式 /
- 间歇性 /
- 壁面摩擦 /
- 网格分辨率
Abstract: A new transition prediction model was introduced which coupled the intermittency effect into the turbulence transport equations and took the characteristics of fluid transition into consideration so as to mimic the exact process of transition.Test cases including two-dimensional incompressible plate and two-dimensional NACA0012 airfoil,and the performance of this transition model used in incompressible flow were studied.It was proved that the numerical results were well consistent with experimental data.Meanwhile the requirement of grid resolution for this transition model was also studied.
- transition /
- turbulent modeling /
- intermittency /
- grid resolution /
- skin friction

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参考文献(19)

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