Numerical Simulation of Gas - Liquid Two Phase Leakage Flow in Radial Oil Film Seals

被引：0
|
作者：
Wei W. [1 ]
Geng K.-H. [1 ]
Geng A.-N. [2 ]
Ma X.-B. [1 ]
He Y. [1 ]
Zhao T.-B. [1 ]
Lei Y. [1 ]
机构：
[1] College of Mechanical Engineering, Guangxi University, Nanning
[2] College of Mechanical and Electrical Engineering, Wuyi University, Jiangmen
来源：
Geng, Kui-Hua (317769222@qq.com) | 2018年 / Zhejiang University卷 / 32期
关键词：
Compressor; Gas-liquid flow; Numerical simulation; Oil film seal; Orthogonal test;
D O I：
10.3969/j.issn.1003-9015.2018.04.009
中图分类号：
学科分类号：
摘要：
Radial clearances of roller compressors were sealed by dynamic pressure oil films, which show microscopic gas-liquid two phase leakage flow. Dynamic pressure oil film seals were studied by an orthogonal test method and verified experimentally. Numerical simulation by Fluent was used to analyze the significance of test parameters on both gas leakage rate Q and gas breakdown time T. The results show that under experimental conditions, a) the significance on Q are ranked as radial clearance H > differential pressure P > lubricating oil viscosity μ; b) the significance on T are ranked as H > μ > P. Specifically, Q increases with the increase of H and P and decreases with increase of μ, while T shows the opposite results as that of Q. An optimal combination of parameters for minimum gas leakage is proposed. © 2018, Editorial Board of "Journal of Chemical Engineering of Chinese Universities". All right reserved.
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页码：808 / 815
页数：7
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