Large-Eddy Simulation of Unsteady Flow in a Mixed-Flow Pump
Large-Eddy Simulation of Unsteady Flow in a Mixed-Flow Pump
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DOI：
10.1155/s1023621x03000320
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发表时间：
2003-09
影响因子：
0.9
通讯作者：
C. Kato;H. Mukai;A. Manabe
中科院分区：
文献类型：
--
作者：
C. Kato;H. Mukai;A. Manabe
本文描述了高比转速混流泵在低流量比下内部流动的大涡模拟（LES），在此流量比下测量得到的扬程 - 流量特性呈现出微弱的不稳定性。为了处理流场中的运动边界界面，开发了一种有限元方法，该方法从多个动态参考系应用重叠网格。通过应用区域分解编程模型，将该方法实现为一个并行程序。
This article describes the large-eddy simulation (LES) of the internal flows of a high–specific-speed, mixed-flow pump at low flow-rate ratios over which measured head-flow characteristics exhibit weak instability. In order to deal with a moving boundary interface in the flow field, a form of the finite-element method in which overset grids are applied from multiple dynamic frames of reference has been developed. The method is implemented as a parallel program by applying a domain-decomposition programming model.