An advanced CFD model to study the effect of non-condensable gas on cavitation in positive displacement pumps

被引：7
|
作者：
Iannetti, Aldo [1 ]
Stickland, Matthew T. [1 ]
Dempster, William M. [1 ]
机构：
[1] Univ Strathclyde, Mech & Aerosp Engn Dept, 16 Richmond St, Glasgow G1 1XQ, Lanark, Scotland
来源：
OPEN ENGINEERING | 2015年 / 5卷 / 01期
关键词：
Cavitation; positive displacement pumps; non-condensable gas effect; CFD;
D O I：
10.1515/eng-2015-0027
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An advanced transient CFD model of a positive displacement reciprocating pump was created to study its behavior and performance in cavitating condition during the inlet stroke. The "full" cavitation model developed by Singhal et al. was utilized, and a sensitivity analysis test on two air mass fraction amounts (1.5 and 15 parts per million) was carried out to study the influence of the dissolved air content in water on the cavitation phenomenon. The model was equipped with user defined functions to introduce the liquid compressibility, which stabilizes the simulation, and to handle the two-way coupling between the pressure field and the inlet valve lift history. Estimation of the performance is also presented in both cases.
引用
收藏
页码：323 / 331
页数：9
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