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Simplified mesoscale porous media model for natural convective heat transfer in a square geometry

Che Sidik, Nor Azwadi (2010) Simplified mesoscale porous media model for natural convective heat transfer in a square geometry. In: International Conference on Applications of Computer Engineering (ACE ’10) (Peringkat Antarabangsa), 23-25 March 2010, Pulau Pinang.

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Abstract

The lattice Boltzmann method (LBM) is applied to a generalised isotropic porous media model in a square geometry by introducing a force term to the evolution equation and a porosity to the density equilibrium distribution function. The temperature field is obtained by simulating a simplified thermal model which uses less velocity directions for the equilibrium distribution function and neglects the compression work done by the pressure and the viscous heat dissipation. The reliability of this model for natural convective heat transfer simulation is studied by comparing with results from previous simulations at a porosity value, e = 0.9999 which close to unity resembling a square cavity condition. The model is then used for simulation at e = 0.9. Comparison of solutions with previous works confirms the capability of the present approach.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:lattice Boltzmann method, isotropic porous media and natural convective heat transfer
Subjects:T Technology > TJ Mechanical engineering and machinery
Divisions:Mechanical Engineering
ID Code:24256
Deposited By: Liza Porijo
Deposited On:27 Sep 2012 06:12
Last Modified:27 Sep 2012 06:12

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