DENTON程序湍流模型改进研究

李清亮; 刘宝杰

DENTON程序湍流模型改进研究

北京航空航天大学航空发动机气动热力重点实验室, 北京 100083

基金项目: 973课题(2007CB210103)

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出版历程
- 收稿日期: 2007-05-14
- 修回日期: 2007-09-14
- 刊出日期: 2008-05-28

Modification of the turbulence model of DENTON code

National Key Laboratory of Aero-engines, Beijing University of Aeronautics and Astronautics, Beijing 100083, China

摘要

摘要: 改进了DENTON程序所使用的混合长度模型,使之能够适应壁面发展以及有适度分离流动的情况,并减少对经验的依赖.通过对NASARotor67转子和Rotor37转子的对比计算分析,验证了改进的混合长度模型能够进一步提高计算的可靠性,并且计算时间增加很少,保持了DENTON程序计算速度快的优势.
- 航空、航天推进系统 /
- 混合长度 /
- 湍流模型 /
- CFD
Abstract: The mixing length model of DENTONcode was modified to make it fit the development of boundary layer and moderate scale separation,and also reduce the dependence on experience.By comparative calculation and analysis of NASA Rotor 67 and NASA Rotor 37,it shows that the modified model could further improve the computational reliability with little increase of CPUtime,and also maintain the fast advantage of DENTONcode.
- aerospace propulsion system /
- mixing length /
- turbulence model /
- CFD

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参考文献(13)

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