利用数值方法研究了某低速轴流孤立压气机转子中非定常叶顶间隙流的流动特征和频率特性.结果显示转子顶部区域的压力脉动主要来源于叶顶泄漏涡的非定常波动.波动的具体形式表现为泄漏涡瞬态空间位置、尺度和形态的周期性变化,波动频率为1266 Hz.
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