| 高比转速离心压气机叶轮的设计及其三维流场分析 |
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| 引用本文： | 杜建一,祁志国,汤华,赵晓路,徐建中.高比转速离心压气机叶轮的设计及其三维流场分析[J].工程热物理学报,2005,26(3):420-422. |
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| 作者姓名： | 杜建一 祁志国 汤华 赵晓路 徐建中 |
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| 作者单位： | 中国科学院工程热物理研究所,北京,100080;中国科学院工程热物理研究所,北京,100080;中国科学院研究生院,北京,100039 |
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| 基金项目： | 国家自然科学基金;国家高技术研究发展计划(863计划) |
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| 摘 要： | 利用三维数值模拟计算(CFD)技术进行了100 kW微型燃气轮机的高比转速离心压气机叶轮的设计与内部流动的数值模拟与分析,得到了相应的特性曲线与主要气动参数分布。根据数值模拟分析,设计的100 kW微型燃气轮机高比转速离心压气机叶轮具有较高的效率和较宽广且平坦的工作特性,可以满足微燃机总体设计对压气机的要求。流道内存在复杂的跨音速流动现象。在下一步工作中,有必要优化设计叶轮几何型线,提高压气机效率。
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| 关 键 词： | 离心压气机 叶轮 数值模拟 |
| 文章编号： | 0253-231X(2005)03-0420-03 |
| 修稿时间： | 2004年11月25 |
DESIGN AND ANALYSIS OF HIGH SPECIFIC SPEED CENTRIFUGAL COMPRESSOR IMPELLERS |
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| DU Jian-Yi,QI Zhi-Guo,TANG Hua,ZHAO Xiao-Lu,XU Jian-Zhong.DESIGN AND ANALYSIS OF HIGH SPECIFIC SPEED CENTRIFUGAL COMPRESSOR IMPELLERS[J].Journal of Engineering Thermophysics,2005,26(3):420-422. |
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| Authors: | DU Jian-Yi QI Zhi-Guo TANG Hua ZHAO Xiao-Lu XU Jian-Zhong |
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| Abstract: | In order to design a centrifugal compressor impellers with high specific velocity which is used in a 100 kW micro gas turbine, a 3-D CFD solver is used to investigate the flow field in the impeller with numerical simulation method. The characteristic curve and primary parameter of the impeller are achieved. The fluid analysis indicates that the designed impeller has higher efficiency and wide, flat work characteristics and can meet the requirement for impeller according to micro gas turbine collective design. The calculation results show that there are complicated tran-sonic flow phenomena in the flow field of the impeller. In the next work, it is necessary to design optimum the impeller to increase the efficiency of the compressor. |
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| Keywords: | centrifugal compressor impeller numerical simulation |
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