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利用ＬＤＶ 测量了矩形断面离心蜗壳内的速度场，通过比较１００ ％ 、６０ ％ 和２３ ％ 设计流量工况下离心蜗壳内的流动分布，分析了流量对离心蜗壳内速度场的影响。
The velocity field in the centrifugal volute with rectangular section was measured by LDV. The flow distribution in the centrifugal volute under 100%, 60% and 23% design flow conditions was compared and the effect of flow on the velocity field in the centrifugal volute was analyzed.