Local analysis of heat transfer inside corrugated channel

被引:53
作者
Gradeck, M [1 ]
Hoareau, B [1 ]
Lebouché, M [1 ]
机构
[1] CNRS, UMR 7563, LEMTA, F-54505 Vandoeuvre Les Nancy, France
关键词
D O I
10.1016/j.ijheatmasstransfer.2004.12.026
中图分类号
O414.1 [热力学];
学科分类号
摘要
Experiments are performed to study effects of hydrodynamic conditions on the enhancement of heat transfer for single phase flow. These experiments have been conducted for a wide range of Reynolds numbers, (0 < Re < 7500) in order to obtain the different regimes from steady laminar to turbulent. A two-dimensional corrugated test section which has been instrumented with thermocouples can be heated by electrical cartridges. The local temperature measurements are used to evaluate the local and global heat transfer coefficient of the wavy heat exchanger. As expected, the heat transfer is always higher than those in rectangular channel; it is essentially due to the mixing induced by the recirculation in the wake of the corrugations. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1909 / 1915
页数:7
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