| 静叶吸气对某轴流压气机裕度影响的研究 |
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| 引用本文： | 陈迪,桂幸民.静叶吸气对某轴流压气机裕度影响的研究[J].航空动力学报,2008,23(3):527-533. |
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| 作者姓名： | 陈迪 桂幸民 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金(50136010,50076001) |
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| 摘 要： | 运用Numeca CFD对某大弯度叶栅和某轴流压气机流动进行数值模拟,为减小由于边界层分离而带来的损失,拓宽稳定工作范围,提出叶片吸力面表面开缝抽气方案.综合研究开缝位置、开缝长度、及吸气量大小对流动分离结构和裕度的影响.结果表明通过静子叶片上边界层抽气引出分离区域的低能量气流,可以明显的改善气动性能,分离得到很好的抑制,稳定工作裕度得到了提高.
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| 关 键 词： | 航空、航天推进系统 大弯度叶型 抽吸气 轴流压气机 数值模拟 |
| 文章编号： | 1000-8055(2008)03-0527-07 |
| 收稿时间： | 2/6/2007 12:00:00 AM |
| 修稿时间： | 2007年2月6日 |
Research of influence of stator blade suction on the stall margin of axial compressor |
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| CHEN Di and GUI Xing-min.Research of influence of stator blade suction on the stall margin of axial compressor[J].Journal of Aerospace Power,2008,23(3):527-533. |
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| Authors: | CHEN Di and GUI Xing-min |
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| Institution: | School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100083, China |
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| Abstract: | Numeca CFD commercial software was used to simulate numerically the flow field of a high-turning cascade and axial compressor.In order to mitigate the loss from boundary layer separation and expand the working range,a proposal for slot suction on blade suction surface was presented.The influences of position of slots,length of slots and the mass flow of suction on the separation structure and stall margin were investigated.The results show that,the aerodynamic performance could be improved significantly through release of low-energy air current at upstream boundary layer of stator blade,and the flow separation could also be postponed with improved stall margin. |
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| Keywords: | aerospace propulsion system high-turning airfoil boundary layer suction axial compressor numerical simulation |
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