流体机械2011，Vol.39Issue(3)：18-22,5.DOI:10.3969/j.issn.1005-0329.2011.03.004
长短叶片离心泵的三维湍流数值模拟研究
Study on Three-dimensional Numerical Simulation of Turbulent Flow in the Centrifugal Pump with Long and Short Blades
摘要
Abstract
The whole three-dimensional viscous numerical simulation is applied in centrifugal pump with long and short blades for studying the internal flow field. Compare the external characteristic of calculation results with the external characteristic of the PIV experimental results. In the small flow, design flow and heavy flow of these three workers circumstances, the internal flow field data obtained from numerical simulation was compared with the internal flow field data obtained from experimental measurement.Distribution of flow angle and relative velocity along circumferential direction near the outlet of impeller is posted. The result shows that the head of numerical simulation is greater than that obtained from the experimental measurement in the same flow rate. And as flow increases, the divergence between the trend of the both methods is increasing. In the same operating conditions,the relative velocity vector direction and flow pattern in the leaf-beds are consistent.关键词
长短叶片/离心泵/数值模拟Key words
long and short blades/centrifugal pump/numerical simulation分类
机械制造引用本文复制引用
连松锦,陈松山,周正富,何钟宁,蒋红梅..长短叶片离心泵的三维湍流数值模拟研究[J].流体机械,2011,39(3):18-22,5.基金项目
江苏省自然科学基金项目(BK2008217) （BK2008217）
江苏省高校自然科学基金项目(06KJB470126) （06KJB470126）
