Effect of cross-sectional aspect ratio on turbulent heat transfer in an orthogonally rotating rectangular smooth duct

被引：57
|
作者：
Murata, A
Mochizuki, S
机构：
[1] Tokyo Univ Agr & Technol, Grad Sch Bioapplicat & Syst Engn, Koganei, Tokyo 1848588, Japan
[2] Tokyo Univ Agr & Technol, Coll Engn, Dept Mech Syst Engn, Koganei, Tokyo 1848588, Japan
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1999年 / 42卷 / 20期
关键词：
D O I：
10.1016/S0017-9310(99)00058-7
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to investigate the effects of the Coriolis force and the duct cross-sectional aspect ratio on turbulent heat transfer, the large eddy simulation was performed changing the aspect ratio and the rotation number in the range, 0.25-4.0 and 0-5.0, respectively, while the turbulent Reynolds number was 350. In the results, both direct and indirect influences of the Coriolis force on the turbulence were seen, The relative intensity of these influences depended on the aspect ratio. The Colburn's j factor showed a higher value for a larger aspect ratio because of larger heal transfer enhancement on the pressure and side surfaces. (C) 1999 Elsevier Science Ltd. All rights reserved.
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页码：3803 / 3814
页数：12
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