TY  - JOUR
T1  - Experimental Study of Rayleigh-Benard Convection Destabilized by Heated Side Wall
AU - , M. Zeroual AU - , P. Cerisier AU - , M. Zereg 
JO  - Journal of Engineering and Applied Sciences
VL  - 2
IS  - 6
SP  - 1048
EP  - 1053
PY  - 2007
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2007.1048.1053
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2007.1048.1053
KW  - Cavities
KW  -heat transfer
KW  -instabilities
KW  -natural convection
KW  -silicone oil
KW  -visualisation
AB  - A study of the influence, in addition to the effect of the vertical and horizontal heat gradient, of higher and lower walls, on the natural convection in a cavity was made. We studied the behavior of the induced roll (rI) in contact of the heating side wall, as well as Benard rolls (rB) number and the evolution of the convective structure according to the heating side. This study concerns two different values of the horizontal walls conductivity (polycarbonate and glass). The vessel is a parallelepipedic cavity filled with silicone oil (Pr 880 at 25°C) and which comprises three walls subjected to different temperatures (higher and lower walls as well as small with dimensions side). According to the small side wall temperature the observed structure is a network of transverse rolls (Rayleigh-Benard convection), in case of the side heating absence and network of transverse rolls with induced roll (rI). The dilation of the (rI) as well as the process of rB destruction are a function of the heat flow on the level of the side wall.
ER  -