航空学报 > 2005, Vol. 26 Issue (1): 1-7

关于轴流压气机的非定常两代流型

周盛, 侯安平, 弓志强, 陆亚钧, 葛劲东   

  1. 北京航空航天大学 能源与动力工程学院, 北京 100083
  • 收稿日期:2003-11-25 修回日期:2004-03-01 出版日期:2005-02-25 发布日期:2005-02-25

Two Generations of Unsteady Flow Type for Axial Comperssor

ZHOU Sheng, HOU An-ping, GONG Zhi-qiang, LU Ya-jun, GE Jing-dong   

  1. Department of Jet Prepulsion, Beijing University of Aeronautics and Astronautics, Beijing 10083, China
  • Received:2003-11-25 Revised:2004-03-01 Online:2005-02-25 Published:2005-02-25

摘要: 针对作者提出的轴流压气机非定常两代流型——非定常自然流型(UNFT)和非定常耦合流型(UCFT)——概念,本文进行了数值模拟和试验两个方面的验证。从数值模拟结果来看,实现非定常耦合流型后,对应非定常流场的时空结构将由无序状态向有序状态转化,流场的时均性能也能得到较大提高。环形叶栅声激励和PIV测量的实验结果亦证实了这一结论。

关键词: 流型, 非定常分离流, 非定常自然流型, 非定常耦合流型, 轴流压气机

Abstract: In order to validate the concept of two generations unsteady flow type-unsteady natural fow type(UNFT)and unsteady cooperative flow type(UCFT)-in axial flow compressor proposed by authors, numerical simulation and experiments are done.It can be seen from the results of numerical simulation that the space-time structure of unsteady flow would translate from chaotic state to orderly state and the time-average performance of flow field can be improved greatly when UCFT is realized.These conclusions also have been validated by our experiments of acoustical excitation and PIV measurement.

Key words: flow type, unsteady separate flow, unsteady natural flow type(UNFT), unsteady cooperative flow type(UCFT), axial flow compressor

中图分类号: