| 非轴对称端壁下高负荷压气机叶栅二次流动分析 |
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| 引用本文： | 吴吉昌,卢新根,朱俊强.非轴对称端壁下高负荷压气机叶栅二次流动分析[J].航空动力学报,2011,26(6):1362-1369. |
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| 作者姓名： | 吴吉昌 卢新根 朱俊强 |
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| 作者单位： | 1.中国科学院 工程热物理研究所,北京 100190 |
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| 基金项目： | 国家自然科学基金(50806073) |
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| 摘 要： | 探讨了高负荷压气机叶栅中应用非轴对称端壁的有效性.首先利用NUMECA/Design3D优化软件包来完成了对端壁的优化,然后推导并建立了高负荷压气机叶栅出口含全部掺混损失的二次流损失的计算方法,最后在设计攻角和非设计攻角下对轴对称端壁和非轴对称端壁结构的高负荷压气机叶栅内部及出口流场进行了详细的分析.分析结果表明:在设计攻角和非设计攻角下采用非轴对称端壁均能改变端壁附近载荷分布、降低叶片通道的二次流动损失;在设计攻角下使叶栅周向质量平均总压损失减少约为9.4%,在非设计攻角(±3°)下分别减损7.7%和11.8%;当非轴对称端壁幅值为4%叶高时,二次流动损失最小.
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| 关 键 词： | 高负荷压气机叶栅 非轴对称端壁 二次流 数值模拟 总压损失 |
| 收稿时间： | 2010/5/12 0:00:00 |
| 修稿时间： | 2010/7/13 0:00:00 |
Secondary flow analysis for non-axisymmetric endwall on the high-load compressor cascade |
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| WU Ji-chang,LU Xin-gen and ZHU Jun-qiang.Secondary flow analysis for non-axisymmetric endwall on the high-load compressor cascade[J].Journal of Aerospace Power,2011,26(6):1362-1369. |
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| Authors: | WU Ji-chang LU Xin-gen and ZHU Jun-qiang |
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| Institution: | 1.Institute of Engineering Thermophysics, Chinese Academy of Sciences,Beijing 100190,China2.Graduate University of Chinese Academy of Sciences,Beijing 100190,China |
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| Abstract: | The effectiveness of a non-axisymmetric endwall on a high-load compressor cascade was discussed.First of all,the trigonometric function was used to complete non-axisymmetric endwall profiling.Then the method of calculating the mixed-out secondary loss for the compressor cascade was established.Finally,the detailed numerical simulations were conducted on the cascade flow field with non-axisymmetric hub endwall.Numerical results show that with the non-axisymmetric hub endwall,the loading distribution near the... |
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| Keywords: | high-load compressor cascade non-axisymmetric endwall secondary flow numerical simulation total pressure loss |
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