| 非轴对称导叶尾迹对低速轴流压气机的影响 |
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| 引用本文： | 刘建勇,李志平,陆亚钧,曾涛.非轴对称导叶尾迹对低速轴流压气机的影响[J].航空动力学报,2009,24(8):1799-1804. |
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| 作者姓名： | 刘建勇 李志平 陆亚钧 曾涛 |
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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航空发动机气动热力重点实验室; |
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| 基金项目： | 国家自然科学基金(50476003);;北京航空航天大学博士生创新基金 |
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| 摘 要： | 在轴对称尾流撞击实验的基础上,进行了多种非轴对称尾流撞击实验研究.当合理安排进口导叶的数目和周向分布形式时,进口导叶(IGV)的非轴对称尾迹能对下游转子流场产生有益的非定常耦合激励作用.与轴对称尾流撞击方案相比,非轴对称尾流撞击方案在保持了有益的高频激励信号的同时,引入了合适的低频方波激励信号和其他有益的副频激励信号,使得导叶尾迹更容易与压气机中的复杂涡系产生耦合激励作用,例如通道涡、间隙涡和尾迹分离涡等.实验结果显示,非轴对称尾流撞击方案B能使压气机的最高效率提高1.2%,总压升和稳定裕度也略有增加.
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| 关 键 词： | 轴流压气机 尾迹 非轴对称 耦合 |
| 收稿时间： | 8/7/2008 10:25:40 AM |
| 修稿时间： | 12/1/2008 7:38:28 PM |
Effects of non-axisymmetric IGV wakes on a low speed axial compressor |
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| LIU Jian-yong,LI Zhi-ping,LU Ya-jun and ZENG Tao.Effects of non-axisymmetric IGV wakes on a low speed axial compressor[J].Journal of Aerospace Power,2009,24(8):1799-1804. |
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| Authors: | LIU Jian-yong LI Zhi-ping LU Ya-jun and ZENG Tao |
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| Institution: | National Key Laboratory on Aero-Engine;School of Jet Propulsion;Beijing University of Aeronautics and Astronautics;Beijing 100191;China |
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| Abstract: | Based on the axisymmetric wake impact experiment,several non-axisymmetric wake impact experiments were carried out.When the number and circumferential positions of inlet guide vanes(IGV) were logical,the wakes of non-axisymmetric IGVs could make beneficial unsteady excitation on downstream rotor field.In these experiments,some suitable non-axisymmetric wake impact plans worked better than the axisymmetric wake impact plan.As compared to the axisymmetric wake impact plan,the non-axisymmetric wake impact plan... |
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| Keywords: | axial compressor wakes non-axisymmetric cooperate |
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