压气机转子三维流场计算中叶尖间隙网格的影响

张辉; 马宏伟; 蒋浩康

压气机转子三维流场计算中叶尖间隙网格的影响

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: 国家自然科学基金资助(5980600150376002);航空科学基金资助(04C51030)

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出版历程
- 收稿日期: 2004-12-20
- 修回日期: 2005-04-25
- 刊出日期: 2006-02-28

Effects of Tip Clearance Grids on the Simulations of Three-Dimensional Flow Fields in a Low Speed Compressor Rotor

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

摘要

摘要: 对一带叶尖间隙的低速轴流压气机转子三维流场进行了数值模拟,通过与实验结果对比,分析了叶尖网格匹配、网格质量对压气机转子三维流场计算的影响,发现网格正交性和网格疏密过渡会影响二阶计算精度的收敛,研究还显示压升特性线不能准确的反映网格数目对计算结果的影响。
- 航空、航天推进系统 /
- 压气机 /
- 转子 /
- 叶尖间隙 /
- 三维流场 /
- 网格
Abstract: The 3-D flow fields of a low-speed axial compressor rotor with a tip clearance were calculated.Compared with experimental results,effects of the tip grid-matching and the grid quality on numerical results were investigated.The result shows the requirement of the gird-matching between the tip clearance and the rotor passage for simulations of flow details in the tip clearance,and the sensitivity of the second-order difference scheme to the grid quality.In addition,it was revealed that the pressure rise characteristics did not exactly reflect the effect of grid numbers on numerical results.
- aerospace propulsion system /
- compressor /
- rotor /
- tip clearance /
- 3-D flow field /
- gird

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参考文献(8)

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