NON-BOUSSINESQ EFFECTS IN FREE THERMAL-CONVECTION

被引:99
作者
WU, XZ [1 ]
LIBCHABER, A [1 ]
机构
[1] UNIV CHICAGO, RES INST, CHICAGO, IL 60637 USA
来源
PHYSICAL REVIEW A | 1991年 / 43卷 / 06期
关键词
D O I
10.1103/PhysRevA.43.2833
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Non-Boussinesq effects in a Rayleigh-Benard convection system lead to a symmetry breaking between the top and the bottom boundary layers. We have found that the two layers adjust their temperature drops and the thicknesses-lambda such that their temperature scales nu-kappa/g-alpha-lambda-3 are equal, where alpha is the thermal expansion coefficient, g is the gravitational acceleration, and nu and kappa are the kinematic viscosity and thermal diffusivity, respectively.
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页码:2833 / 2839
页数:7
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