| DES模型在压气机叶栅中的应用研究 |
| |
| 引用本文： | 顾春伟,陈美兰,李雪松,奉凡.DES模型在压气机叶栅中的应用研究[J].工程热物理学报,2008,29(12). |
| |
| 作者姓名： | 顾春伟 陈美兰 李雪松 奉凡 |
| |
| 作者单位： | 清华大学热能工程系,北京,100084 |
| |
| 基金项目： | 973项目，国家自然科学基金资助项目 |
| |
| 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.
|
| 关 键 词： | DES模型 模型系数 尾迹掺混 内部流动 |
APPLICATION OF DES MODEL IN THE COMPRESSOR CASCADE FLOW |
| |
| GU Chun-Wei,CHEN Mei-Lan,LI Xue-Song,FENG Fan.APPLICATION OF DES MODEL IN THE COMPRESSOR CASCADE FLOW[J].Journal of Engineering Thermophysics,2008,29(12). |
| |
| Authors: | GU Chun-Wei CHEN Mei-Lan LI Xue-Song FENG Fan |
| |
| Institution: | GU Chun-Wei CHEN Mei-Lan LI Xue-Song FENG Fan (Department of Thermal Engineering,Tsinghua Universtity,Beijing 100084,China) |
| |
| Abstract: | 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 coefficie... |
| |
| Keywords: | DES model modeling coefficient wake mixing inner flow |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
