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Numerical Modelling of Rib Width and Surface Radiation Effect on Natural Convection in a Vertical Vented and Divided Channel

Nadia Dihmani1, Samir Amraqui1, Ahmed Mezrhab1,2, Najib Laraqi3
Université Mohammed Premier, Faculté des Sciences, Laboratoire de Mécanique & Energétique, 60000 Oujda, Maroc.
Author correspondant: amezrhab@yahoo.fr
Université Paris Ouest, LTIE, EA 4415, GTE, F-92410 Ville d’Avray, France

Fluid Dynamics & Materials Processing 2012, 8(3), 311-322. https://doi.org/10.3970/fdmp.2012.008.311

Abstract

Natural convection with surface radiation heat transfer is investigated numerically in a vented vertical channel heated asymmetrically. The numerical solution is obtained using a finite volume method based on the SIMPLER algorithm for the treatment of velocity-pressure coupling. Concerning the radiation exchange, in particular, the working fluid is assumed to be transparent, so that only the solid surfaces (assumed diffuse-grey) give a contribute to such exchange. The effect of Rayleigh numbers and rib width (for Pr=0.7 air fluid) on the heat transfer and flow structure in the channel is examined in detail. Results are presented in terms of isotherms, streamlines, and average Nusselt number.

Cite This Article

Dihmani, N., Amraqui, S., Mezrhab, A., Laraqi, N. (2012). Numerical Modelling of Rib Width and Surface Radiation Effect on Natural Convection in a Vertical Vented and Divided Channel. FDMP-Fluid Dynamics & Materials Processing, 8(3), 311–322.



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