| DES模型在压气机叶栅中的应用研究 | |
| 顾春伟 ; 陈美兰 ; 李雪松 ; 奉凡 ; GU Chun-Wei ; CHEN Mei-Lan ; LI Xue-Song ; FENG Fan | |
| 2010-05-13 ; 2010-05-13 | |
| 关键词 | DES模型 模型系数 尾迹掺混 内部流动 DES model modeling coefficient wake mixing inner flow TB652 |
| 其他题名 | APPLICATION OF DES MODEL IN THE COMPRESSOR CASCADE FLOW |
| 中文摘要 | 本文采用DES模型分析压气机叶栅内部流动及尾迹掺混,探讨了DES模型系数对数值模拟精度的影响。结果显示,模型系数取为0.65时,计算总压损失和实验相比偏小;模型系数取为0.065时,计算粘性太小,端壁出现提早分离,而当模型系数取为0.2时,得到了较好的模拟结果。; DES(Detached-Eddy Simulation)based on S-A model of RANS is performed to investigate the flow in a compressor cascade in the present study.The modeling coefficient C_(DES)is set orderly to 0.065,0.2 and 0.65.In the present MUSCL reconstructed Roe scheme,DES results with the modeling coefficient at 0.2 are perfect comparing to the experimental ones,total pressure loss results for modeling coefficient at 0.65 behave lower that the experimental ones,premature departure emerges in the modeling with its coefficient at 0.065.DES shows more consistent with experimental results than the SA results,instantaneous results with modeling coefficient at 0.2 are also presented. |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/31451]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 顾春伟,陈美兰,李雪松,等. DES模型在压气机叶栅中的应用研究[J],2010, 2010. |
| APA | 顾春伟.,陈美兰.,李雪松.,奉凡.,GU Chun-Wei.,...&FENG Fan.(2010).DES模型在压气机叶栅中的应用研究.. |
| MLA | 顾春伟,et al."DES模型在压气机叶栅中的应用研究".(2010). |
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