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首页> 外文会议>7th Biennial Conference on Engineering Systems Design and Analysis 2004(ESDA 2004) vol.1: Advanced Energy Systems; Advanced Heat Transfer in Engineering Systems; ... >THE PIV MEASUREMENTS ON THE FLOW FIELDS IN AN UNSHROUDED CENTRIFUGAL PUMP
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THE PIV MEASUREMENTS ON THE FLOW FIELDS IN AN UNSHROUDED CENTRIFUGAL PUMP

机译：非屏蔽离心泵中流场的PIV测量

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摘要

PIV was applied to the measurements of flow field in an unshrouded centrifugal pump impeller. Three windows were selected for the measurements .Three operation points of the pump were taken during the measuring. The ratios (Q/QBEP) of the flow rate for measuring are 0.6, 1.0, and 1.4, respectively. The velocity distributions in blade-to-blade passages obtained at different windows give the evidence that the velocity distributions are asymmetric even under the design operation point. A lower velocity zone existed at middle of blade-to-blades passages near the pressure-side of the blade.
机译：PIV用于无罩离心泵叶轮中的流场测量。选择三个窗口进行测量。在测量过程中获取了泵的三个操作点。用于测量的流量之比（Q / QBEP）分别为0.6、1.0和1.4。在不同窗口处获得的叶片到叶片通道中的速度分布提供了即使在设计操作点下速度分布也是不对称的证据。在叶片压力侧附近的叶片到叶片通道的中间存在较低的速度区域。

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