Numerical investigation of the effects of the central channel on the flow field in an oil-gas cyclone separator

被引：55

作者：

Gao, Xiang ^{[1
]}

Chen, Jinfeng ^{[1
]}

Feng, Jianmei ^{[1
]}

Peng, Xueyuan ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China

来源：

COMPUTERS & FLUIDS | 2014年 / 92卷

基金：

中国国家自然科学基金;

关键词：

Numerical simulation; Oil-gas cyclone separator; Central channel; Flow field; TURBULENT SWIRLING FLOW; VORTEX FINDER; COLLECTION EFFICIENCY; PERFORMANCE; CFD; DIMENSIONS;

D O I：

10.1016/j.compfluid.2013.11.001

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The Reynolds stress turbulence model (RSM) was used in this study to numerically investigate the effects of the central channel parameters on the flow field in five cylinder-shaped oil-gas cyclone separators that are commonly used in compressor systems. Based on real working conditions, a wide range of central channel dimensions and pressure-out boundary conditions were employed. The results indicated that the central channel diameter and height has an insignificant effect on the flow field in the separator chamber and the effects of decreasing and increasing the central channel diameter and height were analysed. The tangential velocity near the wall was about 0.8-1.0 times that of the inlet velocity, and the maximum tangential velocity was about 1.8-2.0 times that of the inlet velocity. Particularly, the radial position of the maximum tangential velocity was determined by the outlet diameter, not the central channel diameter. In addition, the effects of the central channel in the top annular space were also examined. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：45 / 55

页数：11

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