| 高比转速跨声离心/斜流压气机流动特点分析 |
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| 引用本文： | 刘宝杰,高星.高比转速跨声离心/斜流压气机流动特点分析[J].航空发动机,2008,34(4):1-4,37. |
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| 作者姓名： | 刘宝杰 高星 |
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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;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： | 航空支撑科技基金资助
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| 摘 要： | 以自行设计的多组高比转速跨声离心/斜流叶轮为例,采用数值模拟方法,在级环境下分析了其总体性能及内部流动机理.着重分析了不同设计方案对叶轮内部激波、叶尖泄漏及出口流场的影响.计算结果表明,合理控制叶轮进口激波、叶尖泄漏及二次流损失,能够明显提高叶轮效率;斜流压气机在高比转速下具有明显的优势.
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| 关 键 词： | 离心/斜流压气机 高比转速 跨声 流场 |
Analysis of Flow Feature in High Specific Speed Transonic Centrifugal/Mixed-flow Compressor |
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| Authors: | LIU Bao-jie GAO Xing |
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| Institution: | LIU Bao-jie,GAO Xing(School of Jet Propulsion,Beijing University of Aeronautics , Astronautics,Beijing100083,China) |
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| Abstract: | The general performance and internal flow mechanism were analyzed in the stage condition by using numerical simulation method: the case of the self-design multigronp high specific speed transonic centrifugal/mixed-flow impeller.The effects of the various design concepts on internal shock waves,blade tip leakage and outlet flow field of the impeller were analyzed emphatically.The calculation results show that the inlet shock waves,blade tip leakage and secondary flow losses are controlled reasonably to impro... |
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| Keywords: | centrifugal/mixed-flow compressor high specific speed transonic flow field |
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