摘要
利用Ａｄｋｉｎｓ－Ｓｍｉｔｈ二次流模型计算得到转子出口截面落后角沿叶高的变化．在压缩系统稳定性模型中考虑叶尖流面落后角影响，并提出一个新的时滞参数计算公式．计算结果表明，落后角的大小对压缩系统的稳定性影响很大，同时揭示了叶尖间隙对压缩系统稳定性的影响．
The spanwise deviation angle distribution at the trailing edge section of rotor blade wascalculated using the Adkins-Smith secondary flow model. A new formula concerning thetime-lag parameter was presented by incorporating the deviation angle in the blade tipstream-surface into the compression system model. The calculated results show that the deviation angle has an important effect on the compression system stability as well as the effectsof tip clearance of rotor blade.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
1996年第2期171-176,共6页
Journal of Beijing University of Aeronautics and Astronautics
关键词
二次流动
压缩空气系统
失速
压气机
secondary flow
compression air system
stability
transients
stall
