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Influence of Endwall Relative Movement on Tip Clearance Flow in a Compressor Cascade
Author(s): 
Pages: 257-262
Year: Issue:  4
Journal: CHINESE JOURNAL OF POWER ENGINEERING

Keyword:  压气机叶顶间隙端壁运动数值模拟;
Abstract: 压气机端壁与叶片间的相对运动是影响叶顶间隙气流流动的重要因素.采用数值模拟的方法考察了端壁运动对不同叶顶间隙压气机叶栅内三维流场的影响.结果表明:端壁相对运动改变了叶栅间隙流场结构,叶栅通道内出现向相邻叶片压力面运动的刮削泄漏涡,上通道涡及叶顶分离涡受到抑制,叶尖负荷增大,间隙泄漏流量增加,叶栅总损失由于叶顶区掺混损失减少而减少.
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