The effect of the inclined perforated baffle on heat transfer and flow patterns in the channel

被引：50
|
作者：
Ary, B. K. P. [1 ]
Lee, M. S. [2 ]
Ahn, S. W. [3 ]
Lee, D. H. [4 ]
机构：
[1] Sepuluh Nopember Inst Technol, Dept Mech Engn, Surabaya 60111, Indonesia
[2] Gyeongsang Natl Univ, Grad Sch, Dept Mech & Syst Engn, Tongyeong 650160, South Korea
[3] Gyeongsang Natl Univ, Inst Marine Ind, Dept Mech & Syst Engn, Tongyeong 650160, South Korea
[4] Inje Univ, High Safety Vehicle Core Technol Ctr, Dept Mech & Automot Engn, Gimhae 621749, South Korea
来源：
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER | 2012年 / 39卷 / 10期
基金：
新加坡国家研究基金会;
关键词：
Inclined perforated baffle; Number of baffles; Flow pattern; Heat transfer; TRANSFER ENHANCEMENT;
D O I：
10.1016/j.icheatmasstransfer.2012.10.010
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
The effect of a number of inclined perforated baffles on the flow patterns and heat transfer in the rectangular channel with different types of baffles is numerically and experimentally checked out. Reynolds numbers are varied between 23,000 and 57,000. The SST k-omega turbulence model is used in the method to predict turbulent flow. The baffles have the width of 19.8 cm, the square diamond type hole having one side length of 2.55 cm, and the inclination angle of 5 degrees. The results show that the flow patterns around the holes are entirely different with different numbers of holes and it significantly affects the local heat transfer, and two baffles provide greater heat transfer performances than a single baffle. (C) 2012 Elsevier Ltd. All rights reserved.
引用
收藏
页码：1578 / 1583
页数：6
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