Numerical simulation of a gas-liquid centrifugal pump under different inlet gas volume fraction conditions

被引：3
|
作者：
Sina Y. [1 ]
Xingqi L. [1 ]
Jianjun F. [1 ]
Guojun Z. [1 ]
Lefu Z. [1 ]
Senlin C. [1 ]
机构：
[1] Institute of Water Resources and Hydro-electric Engineering, Xi'an University of Technology, No.5 South Jinhua Road, Xi'an
来源：
International Journal of Fluid Machinery and Systems | 2019年 / 12卷 / 01期
基金：
中国国家自然科学基金;
关键词：
Centrifugal pump; CFD; Gas-liquid two phase flow; Inlet gas volume fraction; Performance;
D O I：
10.5293/IJFMS.2019.12.1.056
中图分类号：
学科分类号：
摘要：
In order to study the influence of inlet gas volume fraction (IGVF) on performance of a gas-liquid centrifugal pump, three-dimensional turbulent flow of a single-stage gas-liquid centrifugal pump has been simulated by using computational fluid dynamics (CFD). Both steady and unsteady simulations have been conducted for different inlet gas volume fraction conditions of the pump. The gas phase distribution, the internal flow field and pressure field of the pump were obtained with inhomogeneous two-fluid model. The result showed that many gas accumulation zones accompanied vortices appears in the impeller as IGVF increases, and surge would occur as IGVF reaches a certain value. The change of IGVF would change the magnitude and direction of the impeller radial force. © 2019, Turbomachinery Society of Japan. All rights reserved.
引用
收藏
页码：56 / 63
页数：7
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