The onset of natural convection and heat transfer correlation in horizontal fluid layer heated uniformly from below

被引：2
|
作者：
Kim, MC
Kim, S [1 ]
机构：
[1] Cheju Natl Univ, Dept Nucl & Energy Engn, Cheju Do 690756, South Korea
[2] Cheju Natl Univ, Dept Chem Engn, Cheju Do 690756, South Korea
来源：
KSME INTERNATIONAL JOURNAL | 2001年 / 15卷 / 10期
关键词：
buoyancy effect; stability analysis; heat transfer correlation; propagation theory;
D O I：
10.1007/BF03185687
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The critical condition of the onset of buoyancy-driven convective motion of uniformly heated horizontal fluid layer was analysed by the propagation theory which transforms the disturbance quantities similarly. The dimensionless critical time, tau (c), is obtained as a function of the Rayleigh number and the Prandtl number. Based on the stability criteria and the boundary-layer instability model, a new heat transfer correlation which can cover whole range of Rayleigh number was derived. Our theoretical results predict the experimental results quite reasonably.
引用
收藏
页码：1451 / 1460
页数：10
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