北京航空航天大学学报 ›› 2007, Vol. 33 ›› Issue (03): 290-293.

• 论文 • 上一篇    下一篇

30°预旋进气旋转盘流动与换热特性的实验

罗翔, 徐国强, 陶智, 丁水汀   

  1. 北京航空航天大学 航空发动机气动热力重点实验室, 北京 100083
  • 收稿日期:2006-04-26 出版日期:2007-03-31 发布日期:2010-09-19
  • 作者简介:罗 翔 (1973-),男,四川成都人,博士后, xiang.luo@buaa.edu.cn.

Flow and heat transfer in rotor-stator system with pre-swirl angle of 30°

Luo Xiang, Xu Guoqiang, Tao Zhi, Ding Shuiting   

  1. National Key Laboratory on Aero-Engines, Beijing University of Aeronau tics and Astronautics, Beijing 100083, China
  • Received:2006-04-26 Online:2007-03-31 Published:2010-09-19

摘要: 用实验的方法对具有30°预旋进气的旋转盘附近冷气流动与换热特性进行了研究,得到了静 盘表面压力、转盘表面温度、局部努赛尔特数的分布及平均努赛尔特数的变化.结果显示静 止盘罩表面的压力随着半径的增加而增加,随转速的增加而增加.转盘表面的局部努赛尔特 数在r<0.7R的区域基本不变, r>0.7R的区域里, 局部努赛尔特数随r的增加而增大.该预旋 角情况下,进气雷诺数对盘面平均努赛尔特数的影响大于旋转雷诺数.

Abstract: An experimental study of the flow and heat transfer characteristics in a pre-sw irl rotor-stator system was described. Pre-swirl cooling air thr ough nozzles with angle of 30° in the stator flows radially outwards and leav es system from the clearance between rotor and stator. The distributions of the pressure on the stator surface, temperature, local and averaged Nusselt number o n the rotating disk surface were obtained from the tests. The experiments reveal that the pressure on the stator surface increase as the radius and also increas e as rotating speed. The local Nu number will keep invariable when r<0.7R(R is effective radius of rotating disk) in the rotating disk surface, but it will inc rease rapidly as radius when r>0.7R. The cooling flow rate have more effects on average Nu number than rotating speed in this pre-swirl angle.

中图分类号: 


版权所有 © 《北京航空航天大学学报》编辑部
通讯地址:北京市海淀区学院路37号 北京航空航天大学学报编辑部 邮编:100191 E-mail:jbuaa@buaa.edu.cn
本系统由北京玛格泰克科技发展有限公司设计开发