The Graetz-Brinkman problem in a plane-parallel channel with adiabatic-to-isothermal entrance

被引:18
作者
Barletta, A
Magyari, E
机构
[1] Univ Bologna, DIENCA, I-40136 Bologna, Italy
[2] ETH, Swiss Fed Inst Technol, Inst Bldg Technol, Chair Phys Bldg, CH-8093 Zurich, Switzerland
关键词
forced convection; internal flow; Graetz problem; viscous dissipation; analytical methods;
D O I
10.1016/j.icheatmasstransfer.2006.02.015
中图分类号
O414.1 [热力学];
学科分类号
摘要
An analysis of laminar hydrodynamically developed forced convection in the thermal entrance region of a plane-parallel channel with isothermal walls is presented. The effect of viscous dissipation is taken into account in a self-consistent way, i.e. by assuming that this effect is important not only in the region downstream of the entrance section, but also in the region upstream. In the latter region, the channel is assumed to be thermally insulated. As a consequence, the thermal entrance temperature distribution is non-uniform. The temperature field and the local Nusselt number are evaluated. (c) 2006 Elsevier Ltd. All rights reserved.
引用
收藏
页码:677 / 685
页数:9
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