| 某小型高速离心叶轮的优化设计 |
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| 引用本文： | 周荐辉,樊未军,田晓沛,方祥军.某小型高速离心叶轮的优化设计[J].航空动力学报,2009,24(9):2122-2127. |
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| 作者姓名： | 周荐辉 樊未军 田晓沛 方祥军 |
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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航空发动机气动热力重点实验室, 北京 100191 |
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| 摘 要： | 针对某小型高速离心压气机叶轮的叶片厚度和子午流道线形进行改形,并利用商用软件Fine/Turbo对改形后的叶轮进行全三维数值计算.计算结果表明:经过优化的叶轮在设计点绝热效率提高2.4%,并且具有较高的稳定裕度.另外,将径流式叶轮改叶轮为斜流式可以减少叶轮出口区域的气流分离,但以降低其扩压能力为代价.
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| 关 键 词： | 航空发动机 离心压气机 改形设计 数值模拟 |
| 收稿时间： | 2008/9/18 0:00:00 |
| 修稿时间： | 3/2/2009 12:00:00 AM |
Optimized design of a small type high speed centrifugal compressor |
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| ZHOU Jian-hui,FAN Wei-jun,TIAN Xiao-pei and FANG Xiang-jun.Optimized design of a small type high speed centrifugal compressor[J].Journal of Aerospace Power,2009,24(9):2122-2127. |
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| Authors: | ZHOU Jian-hui FAN Wei-jun TIAN Xiao-pei and FANG Xiang-jun |
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| Institution: | National Key Laboratory on Aero-Engines, School of Jet Propulsion, Beijing University of Aeronautics and Astronautics, Beijing 100191, China |
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| Abstract: | A small high speed centrifugal impellor had been modified by rearranging the blade thickness and meridian line type;then the improved impellor was simulated with Fine/Turbo software.The result shows that: the adiabatic efficiency of the improved impellor increases by 2.4% and it also has wilder surge margin.Besides,changing radial flow impellor to inclined flow impellor will comparatively decrease the separation of blades with sacrifice of the pressure ratio. |
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| Keywords: | aero-engine centrifugal compressor modified design numerical simulation |
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