A numerical study of flow and mixing characteristics of three-dimensional confined turbulent opposing jets: Unequal jets

被引：31

作者：

Wang, ST ^{[1
]}

Mujumdar, AS ^{[1
]}

机构：

[1] Natl Univ Singapore, Dept Mech Engn, Singapore 119260, Singapore

来源：

CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION | 2005年 / 44卷 / 10期

关键词：

low Reynolds number k-epsilon turbulence model; opposing jets; jet impingement; mixing;

D O I：

10.1016/j.cep.2005.02.003

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Numerical studies were performed using low Reynolds number k-epsilon turbulence models to examine the effects of unequal opposing jets on the flow pattern and mixing characteristics in a three-dimensional in-line static mixer utilizing confined turbulent opposing jets. Unequal jets were achieved by varying the mass flow rate ratio and/or inlet channel jet width ratio of opposing jets. It is found that, as compared with equal jets, two asymmetric recirculation bubbles are formed after jet impingement and a higher level of turbulent kinetic energy is produced in the impingement region as well as its vicinity. Result shows that better mixing is obtained for unequal jets than equal jets for the same total mass flow rate. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：1068 / 1074

页数：7

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