International Journal of Energy Science and Engineering
Articles Information
International Journal of Energy Science and Engineering, Vol.1, No.3, Jul. 2015, Pub. Date: Jun. 30, 2015
LBM Simulation of Porous Block Effects on Force Convection in a Channel
Pages: 126-135 Views: 1966 Downloads: 892
Authors
[01] Mojtaba Aghajani Delavar, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.
[02] Mehran Valizadeh, Faculty of Mechanical Engineering, Babol Noshirvani University of Technology, Babol, Iran.
Abstract
In this paper heat transfer in a channel with a heat generating porous block has been investigated numerically by using Lattice Boltzmann Method (LBM). The effects of block porosity, height and effective thermal conductivity as well as flow Reynolds number over flow pattern and heat transfer were studied. Results indicate that with rise in block's height (while block's surface remains constant) fluid's temperature would increase. As Reynolds number increases, maximum temperature in block would decline due to reduction in heat transfer between heat source in porous block and fluid. Averaged temperature would increase as block's height grows. Moreover, higher porosity would enhance fluid's temperature because of less heat transfer with adjacent cold walls. Additionally, it was seen that, effects of porosity and block's height on thermal field in porous block are more sensible in contrast with concerned Reynolds numbers.
Keywords
Lattice Boltzmann Method, Heat Generating, Porous Block
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