| 低雷诺数下跨声速压气机转子失速工况时流动失稳触发过程研究 |
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| 引用本文： | 周敏,王如根,白云,王学德,武卫.低雷诺数下跨声速压气机转子失速工况时流动失稳触发过程研究[J].航空动力学报,2009,24(6):1379-1384. |
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| 作者姓名： | 周敏 王如根 白云 王学德 武卫 |
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| 作者单位： | 1.空军工程大学 工程学院, 西安 710038 |
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| 基金项目： | APTD研究项目(APTD-1504-04-07);;空军工程大学工程学院优秀博士学位论文创新基金(BC07006) |
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| 摘 要： | 采用非定常数值方法模拟了低雷诺数条件下NASA Rotor 37跨声速压气机转子内部流动失稳机制.结果表明,随着压气机失速工况的推进,附面层径向涡不断扩大和增强,由附面层径向涡引发的叶顶附面层分离阻塞区不断向叶片前缘移动,直至与叶顶压力面前缘附近由激波和间隙泄漏流诱发的阻塞区相结合,使叶顶通道来流完全被阻塞,最终触发压气机流动失稳.
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| 关 键 词： | 跨声速压气机 流动失稳 雷诺数 附面层径向涡 |
| 收稿时间： | 2008/6/20 0:00:00 |
| 修稿时间： | 2009/4/20 0:00:00 |
Research on flow instability triggering process at stall condition of transonic compressor rotor at low Reynolds number |
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| ZHOU Min,WANG Ru-gen,BAI Yun,WANG Xue-de and WU Wei.Research on flow instability triggering process at stall condition of transonic compressor rotor at low Reynolds number[J].Journal of Aerospace Power,2009,24(6):1379-1384. |
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| Authors: | ZHOU Min WANG Ru-gen BAI Yun WANG Xue-de and WU Wei |
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| Institution: | 1.Engineering Institute, Air Force Engineering University, Xi'an 710038, China2.Aeronautic Equipment Institute of Air Force, Equipment Research Academy, Beijing 100076, China |
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| Abstract: | The flow instability triggering process at stall condition of NASA Rotor 37 tr-ansonic compressor rotor at low Reynolds number was investigated by unsteady numerical simulation.The result shows that the effect range of boundary layer radial vortex is extended,the boundary layer separation blockage zone due to radial vortex is assembled at the blade tip,as the stall condition develops,the boundary layer separation blockage zone moves to the blade leading edge,and combines with blockage zone due to shock and ... |
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| Keywords: | transonic compressor flow instability Reynolds number boundary layer radial vortex |
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