Three-Dimensional Numerical Analysis on Recirculation Generated by Obstacles Around a Cooling Tower

被引：0
|
作者：
Choi, Young Ki
机构：
来源：
TRANSACTIONS OF THE KOREAN SOCIETY OF MECHANICAL ENGINEERS B | 2009年 / 33卷 / 04期
关键词：
Air-guid; Cooling Tower; Numerical Simulation; Obstacle; Recirculation; Three-Dimension;
D O I：
10.3795/KSME-B.2009.33.4.225
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The present study has been preformed to investigate the effect of obstacles around a cooling tower with air-guide to prevent recirculation. The external region as well as the cooling tower are included in the computational domain to analyze the flow phenomena around a cooling tower accurately. Three-dimensional analysis is performed using the finite volume method with non-orthogonal and unstructured grid system. The standard turbulence model is used to consider the turbulence effect. In order to investigate the recirculation phenomena, flow and temperature fields are calculated with the distance between cooling tower and obstacle, the allocated geometrical type and the air-guide. The moisture fraction rates decrease with increment of the distance between cooling tower and obstacle. The effect of air-guide to reduce the mean recirculation rate is obviously observed.
引用
收藏
页码：225 / 234
页数：10
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