FINS WITH TEMPERATURE-DEPENDENT SURFACE HEAT-FLUX .1. SINGLE HEAT-TRANSFER MODE

被引:59
作者
LIAW, SP [1 ]
YEH, RH [1 ]
机构
[1] NATL TAIWAN OCEAN UNIV,DEPT MARINE ENGN,CHILUNG,TAIWAN
关键词
Boiling liquids - Fins (heat exchange) - Mathematical models - Numerical analysis - Surfaces - Temperature distribution - Thermal effects - Thermal insulation - Thermoanalysis - Thermodynamic properties - Thermodynamic stability - Transition flow;
D O I
10.1016/0017-9310(94)90152-X
中图分类号
O414.1 [热力学];
学科分类号
摘要
Involved in all possible types of heat transfer, the thermal characteristics of a single fin with and without heat transfer at its tip is studied. The heat transfer coefficient is assumed to vary with a power-law-type formula. Based on the value of the exponent, the problem is categorized into three regimes. The temperature distribution and heat transfer rate are given in implicit forms and solved exactly. No solution is found when the fin parameter exceeds a specific value for a negative exponent. Besides. two solutions are detected when the fin parameter is smaller than this value, which is related to the thermal instability. Results from analysis are compared with experimental data.
引用
收藏
页码:1509 / 1515
页数:7
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