2D PIV EXPERIMENTS ON NON-UNIFORM FLOW IN A RECTANGULAR OPEN MODEL PUMP SUCTION PASSAGE

机译：矩形开放式泵抽吸通道中非均匀流动的二维PIV实验

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Flows in the suction passage are important for pump working, which can influent the flow conditions in the pump. Some bad flow patterns in the suction passage may do damages to the pump, inducing cavitation, vibration, low efficiency and so on. Flow patterns of non-uniform flows in a rectangular open suction passage, such as distribution of velocity, streamline, turbulence kinetic energy and vortex, were studied by a 2D PIV method under different conditions. The results show that the non-uniformity of flow increases and the flow pattern gets deteriorate when the flow ratio of the two sub-passages rises or the total flow velocity increases. So the best operation condition can be chosen to avoid non-uniformity in the open pump suction passage.

机译：吸入通道中的流量对于泵的工作很重要，这会影响泵中的流量条件。吸入通道中的某些不良流型可能会对泵造成损坏，从而引起气蚀，振动，效率低下等问题。在不同条件下，采用二维PIV方法研究了矩形开放式吸入通道中非均匀流动的流动模式，例如速度，流线，湍流动能和涡流的分布。结果表明，当两个子通道的流量比增加或总流速增加时，流量的不均匀性增加，流量模式恶化。因此，可以选择最佳的操作条件，以避免打开的泵吸入通道不均匀。

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来源
《FED-vol.261; American Society of Mechanical Engineers(ASME) International Mechanical Engineering Congress and Exposition; 20051105-11; Orlando,FL(US)》|2005年|P.523-530|共8页
会议地点 OrlandoFL(US)
作者
XU Zhaofeng; FAN Yi; LIU Shuhong; WU Yulin;
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作者单位

Department of Thermal Engineering, Tsinghua University, Beijing 100084, China;

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会议组织
原文格式 PDF
正文语种 eng
中图分类机械设计、计算与制图;工程流体力学;
关键词
pump suction passage; PIV; non-uniform; flow pattern;

机译：泵吸入通道; PIV;不均匀;流型;

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2D PIV EXPERIMENTS ON NON-UNIFORM FLOW IN A RECTANGULAR OPEN MODEL PUMP SUCTION PASSAGE

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