| 微小流量离心压缩机叶轮流场性能模拟计算 |
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| 引用本文： | 花严红,袁卫星,袁修干,杨春信,陈江.微小流量离心压缩机叶轮流场性能模拟计算[J].航空动力学报,2008,23(10):1896-1902. |
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| 作者姓名： | 花严红 袁卫星 袁修干 杨春信 陈江 |
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| 作者单位： | 1.北京航空航天大学 航空科学与工程学院, 北京 100191 |
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| 摘 要： | 设计了一种空气工质低压比的微小流量、高转速离心压缩机三元叶轮,并对其流场特性进行数值模拟.研究表明:该类叶轮出口与进口区域面积比小于1;采用高转速可以改善该类叶轮的效率;叶轮的最佳叶片数较源于大流量低转速离心压缩机理论的叶片数经验公式计算值要小;叶轮出口角一般在60°以上;叶尖顶部间隙增大时,叶轮总压比及效率显著下降.研究方法和结果为飞机高性能空气循环制冷系统和蒸汽压缩制冷系统中微小流量高转速离心压缩机的工程化设计提供了有益的参考.
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| 关 键 词： | 微小流量 高转速 离心压缩机 叶轮 性能 |
| 收稿时间： | 2007/10/16 0:00:00 |
| 修稿时间： | 2008/1/15 0:00:00 |
Numerical simulation of the flow-field and performance of amicro-flowrate centrifugal compressor impeller |
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| HUA Yan-hong,YUAN Wei-xing,YUAN Xiu-gan,YANG Chun-xin and CHEN Jiang.Numerical simulation of the flow-field and performance of amicro-flowrate centrifugal compressor impeller[J].Journal of Aerospace Power,2008,23(10):1896-1902. |
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| Authors: | HUA Yan-hong YUAN Wei-xing YUAN Xiu-gan YANG Chun-xin and CHEN Jiang |
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| Institution: | 1.School of Aeronautic Science and Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China2.Departmant of Electromechanical Equipment, Jiujiang Vocational and Technical College, Jiujiang 332007, China3.Simulation Center, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A 3-D impeller for a micro-flowrate high-speed centrifugal air compressor(MHCAC) was designed and the performance of flow field was numerically studied.The results show that the ratio of outlet to inlet area of MHCAC impellers is less than 1.0,the efficiency of a micro-flowrate centrifugal compressor can be improved by high rotating speed;the optimum number of blades of MHCAC impellers is less than that given by empirical formula originated from the theory of high-flowrate-low-speed centrifugal compressor;t... |
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| Keywords: | micro-flowrate high-speed centrifugal compressor impellers performance |
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