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International Heat Transfer Conference 12

ISSN: 2377-424X (online)
ISSN: 2377-4371 (flashdrive)

Turbulent transport modeling for heated flow in rigid porous media

Marcelo J.S. de Lemos
Instituto Tecnologico de Aeronautica - ITA 12228-900 - Sao Jose dos Campos - SP – Brazil

Francisco D. Rocamora Jr.
Instituto de Estudos Avancados - IEAv/CTA 12231-970 - Sao Jose dos Campos - SP - Brazil

DOI: 10.1615/IHTC12.4670
6 pages

Abstract

Turbulent heat transport in porous media has been extensively discussed in the pertinent literature due to its potential industrial applications. Recently, Rocamora and de Lemos (2000) have developed a macroscopic energy equation using the 'double decomposition' concept proposed by Pedras and de Lemos (2000), (2001). This development includes an extra term for the convective heat transport therein called 'turbulent thermal dispersion'. This extra term arises due to the spatial deviations and temporal fluctuations of both velocity and temperature in such flows. This work aims at proposing a gradient-type diffusion model for the convective terms involving dispersion and turbulent heat flux. Also considered is the tortuosity arising from the diffusive term of the energy equation.

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