Numerical study of heat transfer from an impinging jet

被引：50
|
作者：
Voke, PR [1 ]
Gao, SA
机构：
[1] Univ Surrey, Dept Engn Mech, Guildford GU2 5XH, Surrey, England
[2] Univ Leicester, Dept Engn, Leicester LE1 7RH, Leics, England
来源：
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1998年 / 41卷 / 4-5期
关键词：
D O I：
10.1016/S0017-9310(97)00243-3
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
A computational study of the impingement of a thermally inhomogeneous turbulent jet on a solid plate, using large-eddy simulation, is reported. We investigate the case of a plane jet of water issuing from a plane channel into an enclosed pool and impinging normally on a perspex plate 1.8 jet-widths downstream. It is shown that the dynamics of the turbulence in this particular geometry results in the temperature variations at the plate surface having very high lateral correlation, so that lateral conduction of heat within the plate fails to have any significant effect on the transmission of thermal fluctuations from the fluid into the plate. By this means a simple one-dimensional model of the thermal, interaction between the media may be justified. (C) 1997 Published by Elsevier Science Ltd.
引用
收藏
页码：671 / 680
页数：10
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