TITLE

RAYLEIGH-BENARD CONVECTION INSTABILITY IN THE PRESENCE OF TEMPERATURE VARIATION AT THE LOWER WALL

AUTHOR(S)
JOVANOVIĆ, Miloš M.; ŽIVKOVIĆ, Dragan S.; NIKODIJEVIĆ, Jelena D.
PUB. DATE
December 2012
SOURCE
Thermal Science;2012, Vol. 16 Issue Supp 2, pS281
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
This paper analyzes the 2-D viscous fluid flow between two parallel plates, where the lower plate is heated and the upper one is cooled. The temperature difference between the plates is gradually increased during a certain time period, and afterwards it is temporarily constant. The temperature distribution on the lower plate is not constant in x-direction, and there is longitudinal sinusoidal temperature variation imposed on the mean temperature. We investigate the wave number and amplitude influence of this variation on the stability of Rayleigh-Benard convective cells, by direct numerical simulation of 2-D Navier-Stokes and energy equation.
ACCESSION #
87613659

 

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