| 向心涡轮进气结构的气动性能及损失机理 |
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| 引用本文： | 孙冠珂,李文,张雪辉,朱阳历,陈海生,谭春青.向心涡轮进气结构的气动性能及损失机理[J].航空动力学报,2015,30(8):1926-1935. |
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| 作者姓名： | 孙冠珂 李文 张雪辉 朱阳历 陈海生 谭春青 |
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| 作者单位： | 中国科学院大学 物理学院, 北京 100190;中国科学院 工程热物理研究所, 北京 100190,中国科学院 工程热物理研究所, 北京 100190,中国科学院大学 物理学院, 北京 100190;中国科学院 工程热物理研究所, 北京 100190,中国科学院 工程热物理研究所, 北京 100190,中国科学院 工程热物理研究所, 北京 100190,中国科学院 工程热物理研究所, 北京 100190 |
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| 基金项目： | 国家高技术研究发展计划(2013AA050801);中国科学院重点部署项目(KG2D-EW-602) |
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| 摘 要： | 针对某向心涡轮,采用二维流动分析方法设计矩形截面蜗壳,同时采用商用计算流体动力学软件CFX对带蜗壳的向心涡轮流动损失进行数值计算.将计算结果与原型设计中带有集气室的向心涡轮计算结果进行对比.结果表明:蜗壳内流动损失要小于集气室内的流动损失,向心涡轮采用蜗壳后流道内流场有明显改善,效率有所提高.采用设计的矩形截面蜗壳,向心涡轮的功率提高1.7%.通过内部流场的分析,揭示了内部流场结构和损失机理,为向心涡轮的设计和优化提供了一定的参考.
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| 关 键 词： | 向心涡轮 蜗壳 集气室 流动分析 效率 流动损失 |
| 收稿时间： | 2014/2/17 0:00:00 |
Aerodynamic performance and losses mechanism of radial turbine intake components |
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| SUN Guan-ke,LI Wen,ZHANG Xue-hui,ZHU Yang-li,CHEN Hai-sheng and TAN Chun-qing.Aerodynamic performance and losses mechanism of radial turbine intake components[J].Journal of Aerospace Power,2015,30(8):1926-1935. |
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| Authors: | SUN Guan-ke LI Wen ZHANG Xue-hui ZHU Yang-li CHEN Hai-sheng and TAN Chun-qing |
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| Institution: | School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China,Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China,School of Physics, University of Chinese Academy of Sciences, Beijing 100190, China;Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China,Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China,Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China and Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | Using 2-D (two-dimensional) flow analysis methods, the rectangular cross-section scroll for a radial turbine was designed. A commercial computational fluid dynamics software CFX was used to caculate the flow losses within the radial turbine with the scroll. Then, the numerical caculation result was compared with that of the radial turbine with chamber. The results show that the loss within the scroll is less than that in chamber. The flow in the radial turbine with scroll is better than that of the turbine with chamber. The radial turbine with scroll has a higher efficiency than the radial turbine with chamber. The power of the radial turbine will increase by 1.7% when using the rectangular cross-section scroll. The inner flow field and losses mechanism is revealed by analyzing the flow field, in order to provide some reference for further development of radial turbine. |
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| Keywords: | radial turbine scroll chamber flow analysis efficiency flow flow loss |
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