Internal Heat Transfer Augmentation in a Channel Using an Alternate Set of Porous Cavity-block Obstacles
نویسنده
چکیده
A numeriea! investigation for forced convection in a constant-temperaJure parallel pkue channel wilh porous cavity and block alternately emplaced on lhe bottom plaJe is presented in this work. The Brinkman-Forchheimer-extended Darcy mode~ whil:h accounts for the effects of impermeable boundary and inertia, is used to characterize the flow field inside the porous region. Solutions of Ihe coupled governing equations are carri£d mu through the stream function-vorticity analysis. The characteristics of fluid fluw and forced convection heat transfer have been obtained by the examinations ofvarious governing parameters, sueh as the Reynolds number, Darcy number, inertial parameter, Prandtl number, and two geometric parameters. Several interesting phenomena sueh as the heal transfer augmen/IJtion in the channel were presented and discussed. The results of this investigation indicate that the size of recircukuion caused by porous block will have a profoand effed on the fluw and heal transfer characteristics inside the interblock porous cavity.
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