Internal heat transfer augmentation in a channel using an alternate set of porous cavity-block obstacles
- Ohio State Univ., Columbus, OH (United States). Dept. of Mechanical Engineering
A numerical investigation for forced convection in a constant-temperature parallel plate channel with porous cavity and block alternately emplaced on the bottom plate is presented in this work. The Brinkman-Forchheimer-extended Darcy model, which accounts for the effects of impermeable boundary and inertia, is used to characterize the flow field inside the porous region. Solutions of the coupled governing equations are carried out through the stream function-vorticity analysis. The characteristics of fluid flow and forced convection heat transfer have been obtained by the examinations of various governing parameters, such as the Reynolds number, Darcy number, inertial parameter, Prandtl number, and two geometric parameters. Several interesting phenomena such as the heat transfer augmentation in the channel were presented and discussed. The results of this investigation indicate that the size of recirculation caused by porous block will have a profound effect on the flow and heat transfer characteristics inside the interblock porous cavity.
- DOE Contract Number:
- FG02-93ER61612
- OSTI ID:
- 7266906
- Journal Information:
- Numerical Heat Transfer. Part A, Applications; (United States), Journal Name: Numerical Heat Transfer. Part A, Applications; (United States) Vol. 25:5; ISSN 1040-7782; ISSN NHAAES
- Country of Publication:
- United States
- Language:
- English
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