TRANSIENT LAMINAR NATURAL-CONVECTION IN A PARTITIONED ENCLOSURE HEATED BY UNIFORM FLUX

被引：7
|
作者：
FU, WS
PERNG, JC
SHIEH, WJ
机构：
[1] Department of Mechanical Engineering, National Chiao Tung University, Hsinchu
来源：
WARME UND STOFFUBERTRAGUNG-THERMO AND FLUID DYNAMICS | 1990年 / 25卷 / 04期
关键词：
D O I：
10.1007/BF01785410
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
Transient laminar natural convection in an enclosure partitioned by an adiabatic baffle is investigated numerically. The enclosure is heated by uniform heat flux from left wall and cooled from right wall which is kept at isothermal. A penalty finite element method with Newton-Raphson iteration algorithm and a backward difference scheme dealing with time term are adopted to solve governing equations. The effects of the baffle and Rayleigh number are found to be substantial on heat transfer mechanism during transient process. However, the variations of heat transfer mechanism occur mainly in the first one-third period of the time of transient, in spite of the present or not, or location of a baffle at the conditions of Rayleigh number being 104 and 106 in this study. © 1990 Springer-Verlag.
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页码：233 / 243
页数：11
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