低雷诺数弯曲叶片流场数值模拟研究  

Fluid Numerical Simulation of Low Reynolds Number on Bowed Blade

作　　者：孙有田[1] 田义宏[1] 邵锦文[1] 

机构地区：[1]海军驻中国航天科工集团第三研究院军事代表室,北京100074

出　　处：《战术导弹技术》2007年第4期31-36,共6页Tactical Missile Technology

摘　　要：通过对不同弯曲叶片在低雷诺数条件下的流场分析,指出了在低雷诺数条件下正弯叶片仍是一种较好的降低损失的有效手段,并且在低雷诺数条件下正弯叶片的采用比在高雷诺数条件下所带来的收益更大.说明了低雷诺数条件下弯叶片降低损失的原因表现在几个方面:减少了前缘分离气泡的尺度;削弱了端壁角区气流的失速;改变了激波的空间结构.It is pointed out that the positively bowed blade under the low Reynolds number condition is a good choice from the view of losses reduction and efficiency improvement according to the field analyzing for the different bowed blades under the low Reynolds number condition. And this is also more suitable for the low Reynolds number than the high low Reynolds number at all aspects of adopting bowed blade. The reasons of reducing losses are presented in adopting the bowed blades under the low Reynolds number condition. The separated bubble dimension at the front of blade is reduced. The corner air flow regions stall in the end wall is weakened. The space structure of shock is changed

关 键 词：低雷诺数 弯曲叶片 二次流 数值模拟 

分 类 号：TJ760.33[兵器科学与技术—武器系统与运用工程]