TY - EJOU
AU - Dihmani, Nadia
AU - Amraqui, Samir
AU - Mezrhab, Ahmed
AU - Laraqi, Najib
TI - Numerical Modelling of Rib Width and Surface Radiation Effect on Natural Convection in a Vertical Vented and Divided Channel
T2 - Fluid Dynamics \& Materials Processing
PY - 2012
VL - 8
IS - 3
SN - 1555-2578
AB - 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.
KW -
DO - 10.3970/fdmp.2012.008.311