Cavitation flow simulation for a centrifugal pump at a low flow rate

被引：40

作者：

Tan Lei ^{[1
]}

Zhu BaoShan ^{[2
]}

Cao ShuLiang ^{[2
]}

Wang YuMing ^{[1
]}

机构：

[1] Tsinghua Univ, State Key Lab Tribol, Beijing 100084, Peoples R China

[2] Tsinghua Univ, State Key Lab Hydrosci & Engn, Beijing 100084, Peoples R China

来源：

CHINESE SCIENCE BULLETIN | 2013年 / 58卷 / 08期

基金：

中国国家自然科学基金;

关键词：

filter function; cavitation; computational model; centrifugal pump;

D O I：

10.1007/s11434-013-5672-y

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

A computational model on the basis of the combination of the full cavitation model and the modified re-normalization group (RNG) k-E > turbulence model are used to simulate the cavitating flow in a centrifugal pump at a low flow rate. A filter function is introduced for the RNG k-E > turbulence model in order to consider the compressibility in the cavitating flow. The calculated values of the net positive suction head available (H (NPSHa)) agree well with the experimental measurements. The cavities in the impeller are obtained and their evolvement with H (NPSHa) are revealed.

引用

页码：949 / 952

页数：4

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