| 尾流撞击效应对轴流压气机下游叶排涡面的影响 |
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| 引用本文： | 周晓勃,周盛.尾流撞击效应对轴流压气机下游叶排涡面的影响[J].航空动力学报,2009,24(3):608-614. |
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| 作者姓名： | 周晓勃 周盛 |
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| 作者单位： | 北京航空航天大学航空发动机气动热力重点实验室,北京,100191 |
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| 摘 要： | 针对某高负倚高压压气机未级,通过研究卜游转子尾迹涡面周期性扫掠对下游静子涡面的影响,从涡面非定常作用的角度分析流场时空结构.结果表明,流场性能的改善与涡面时空结构相对应,尾迹涡面同分离涡面的相互作用可显著降低流动损失;与上游尾迹涡面发生耦合的是叶片尾缘旋涡交替脱落频率而非吸力面前缘分离涡不稳定频率.
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| 关 键 词： | 轴流压气机 流场时空结构 尾流撞击效应 涡面 |
| 收稿时间： | 2008/3/12 0:00:00 |
| 修稿时间： | 2008/4/18 0:00:00 |
Investigation of the effect of wake impact effect on vortex sheets of the downstream blade row in axial compressor |
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| ZHOU Xiao-bo and ZHOU Sheng.Investigation of the effect of wake impact effect on vortex sheets of the downstream blade row in axial compressor[J].Journal of Aerospace Power,2009,24(3):608-614. |
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| Authors: | ZHOU Xiao-bo and ZHOU Sheng |
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| Institution: | National Key Laboratory on Aero-Engines;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | The flowfield in axial compressor is characterized by unsteady vortex flow due to the relative motion of the blade rows.The upstream unsteady wake flow changing periodically is responsible for the airfoil aerodynamic efficiency and thus for the overall performance of the aeroengine.This paper examines the influence of such unsteadiness of upstream wake impact on the development of vortex sheets of downstream blades in a highly loaded HPC(High pressure compressor).The results of this study indicate that the ... |
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| Keywords: | axial compressor temporal-spatial structure of flowfield wake impact effect vortex sheet |
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