西华大学学报（自然科学版）2013，Vol.32Issue(2)：37-40,45,5.DOI:10.3969/j.issn.1673-159X.2013.02.009
基于CFD的低比转速离心泵叶轮切割性能分析
Analysis of Performance for the Impeller Cutting of Centrifugal Pumps with Low Specific-speed based on CFD
赵万勇 1杨登峰 1王磊 1赵爽 1王钊1
作者信息
摘要
Abstract
Based on the current cutting theory of centrifugal pumps with low specific-speed, the impeller diameter of pump 100 was cut three times,and the flow area of the model was divided with blocking non-structural hexahedron grid. The finite volume method was useed to disperse Reynold time-average Navier-Stokes equation. The RNGk - ε turbulence model and SIMPLEC algorithm were employed to simulate each model. The comparison between the result of the performance predicted and the current cutting theory for centrifugal pumps with low specific-speed was conducted. It was proved that the cutting theory was correct and the flow obtained based on the cutting theory was similar. It was also found that the efficiency will increase when the impeller diameter was cut. At last, the flow conditions of each model were analyzed and compared.关键词
低比转速离心泵/切割定律/CFD/数值模拟Key words
low specific-speed centrifugal pump/ cutting theory/CFD/numerical simulation分类
机械制造引用本文复制引用
赵万勇,杨登峰,王磊,赵爽,王钊..基于CFD的低比转速离心泵叶轮切割性能分析[J].西华大学学报（自然科学版）,2013,32(2):37-40,45,5.
