本文对前缘弯掠斜流转子叶顶间隙内的流动特性进行了数值分析.结果表明:叶顶间隙气流与主流发生卷吸而生成泄漏涡.泄漏涡作用的区域具有较低的压力分布.在叶片通道内,泄漏涡沿着与转子旋向相反的方向朝相邻叶片的压力面移动.大间隙时的泄漏涡比小间隙时强烈.低流量时泄漏涡的作用区域比高流量时大.在各种流量特性下,叶顶尾缘近吸力面区域都存在着二次间隙流.
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