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Article Dans Une Revue Fluid Dynamics and Material Processes Année : 2012

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

Résumé

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.

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Dates et versions

hal-01473809 , version 1 (22-02-2017)

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  • HAL Id : hal-01473809 , version 1

Citer

Nadia Dihmani, Samir Amraqui, Ahmed Mezrhab, Najib Laraqi. Numerical Modelling of Rib Width and Surface Radiation Effect on Natural Convection in a Vertical Vented and Divided Channel. Fluid Dynamics and Material Processes, 2012, pp.311-322. ⟨hal-01473809⟩
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