| 一种改进的压气机叶尖泄漏流堵塞预估模型及数值验证 |
| |
| 引用本文： | 程朝青,崔健,李志平,龚一方,李秋实.一种改进的压气机叶尖泄漏流堵塞预估模型及数值验证[J].航空动力学报,2011,26(5):1104-1110. |
| |
| 作者姓名： | 程朝青 崔健 李志平 龚一方 李秋实 |
| |
| 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国家级重点实验室,北京,100191 |
| |
| 摘 要： | 基于压气机叶尖间隙内的流动为Couette流动的实际情况,改进了适用于低速压气机的麻省理工学院Khalid叶尖泄漏堵塞预估模型;同时考虑叶尖泄漏流经过激波后堵塞迅速增加,发展了适用于跨声速压气机的叶尖泄漏流堵塞预估模型.对某低速轴流压气机单转子、跨声压气机单转子进行全三维黏性数值模拟,将计算得到的叶尖泄漏堵塞量与模型预...
|
| 关 键 词： | 压气机 叶尖间隙 泄漏流 泄漏涡 堵塞 |
| 收稿时间： | 2010/4/23 0:00:00 |
| 修稿时间： | 2010/11/9 0:00:00 |
Modified blockage model of tip leakage flow and its validation |
| |
| CHENG Zhao-qing,CUI Jian,LI Zhi-ping,GONG Yi-fang and LI Qiu-shi.Modified blockage model of tip leakage flow and its validation[J].Journal of Aerospace Power,2011,26(5):1104-1110. |
| |
| Authors: | CHENG Zhao-qing CUI Jian LI Zhi-ping GONG Yi-fang and LI Qiu-shi |
| |
| Institution: | CHENG Zhao-qing,CUI Jian,LI Zhi-ping,GONG Yi-fang,LI Qiu-shi(National Key Laboratory of Science and Technology on Aero-Engine Aero-thermodynamics,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China) |
| |
| Abstract: | Based on the common cognition of the tip clearance flow,which has a significant influence on compressor performance and MIT(Massachusetts Institute of Technology) Khalid tip leakage model,a blockage model of tip leakage flow in the condition of low-speed and transonic was deduced in this paper.With analysis of the real flow case in tip clearance and diffusion passage,the aerodynamic design parameters,such as loading,cord length,etc,on the rotor tip and the influence of shock wave on tip leakage loss were an... |
| |
| Keywords: | compressor tip clearance leakage flow leakage vortex blockage |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
| 点击此处可从《航空动力学报》浏览原始摘要信息 |
| 点击此处可从《航空动力学报》下载免费的PDF全文 |
|
