摘要
采用弯扭动时的涡轮流场数值模拟与分析顾发华，冯国泰，韩万今，王仲奇（哈尔滨工业大学动力工程系哈尔滨１５０００１）关键词弯扭动叶，涡轮流场，数值模拟１控制方程与计算方法涡轮静叶弯曲降低损失的机理被解释为流道中尤其是背弧表面“Ｃ”型压力分布（展向两端压力...
The influences of rotor blade bowing on the flow in turbine stages are analyzed by solving the Euler Equations on an averaged S2 stream surface and in three dimensions respectively. It is confirmed that rotor blade bowing has the same effect as stator blade bowing in the aspect of generation of 'C' type pressure distribution in the passage, which favors reducing the secondary flow losses.The simulation also reveals that the optimal lean angles of rotor blades are less at hub and bigger at tip than those of stator blades when both the stator and rotor have the same blade profile. Besides, this paper suggests further research on employing bowed blades into rotors is needed as the flow in rotor is more complicated.
出处
《工程热物理学报》
EI
CAS
CSCD
北大核心
1995年第4期424-427,共4页
Journal of Engineering Thermophysics
基金
国家自然科学基金
航天基金
关键词
弯扭动叶
涡轮
流场
数值模拟
rotors
bowed blades
numerical simulation
