摘要
利用N S方程求解程序 ,对采用不同端壁结构的三套大转角涡轮叶栅进行了数值模拟 ,探讨了上端壁翘曲对涡轮叶栅内气流流动的影响。计算结果表明 ,上端壁翘曲后 ,上半翼展内的二次流流场发生了明显的变化 。
Numerical simulation within turbine cascades with large turn angle and non axisymmetric endwall profile was carried out. The influence of non axisymmetric endwall profile on the flow field was discussed. Numerical results show that the characteristic of the secondary flow was changed when non axisymmetric endwall profile was used. Non axisymmetric endwall profile is a useful tool to control the secondary flow within turbine cascades.
出处
《推进技术》
EI
CAS
CSCD
北大核心
2002年第1期36-39,共4页
Journal of Propulsion Technology
基金
国家科技部 973资助项目 (G19990 2 2 30 7)
哈尔滨工业大学校基金资助 (HIT . 2 0 0 0 . 74 )
关键词
非轴对称端壁
涡轮叶栅
涡轮效率
数值仿真
流场影响
Non axisymmetric endwall profile
Secondary flow
Turbine cascade
Turbine effectiveness
Numerical simulation
