Lattice Boltzmann Simulations for Thermal Conductivity Estimation in Heterogeneous Materials

M.R. Arab; Bernard Pateyron; Mohammed El Ganaoui; Nicolas Calvé

doi:10.4028/www.scientific.net/DDF.283-286.364

Paper Titles

Study of Macrosegregation Defects Formation Caused by Double Diffusive Convective Flow during Solidification of a Binary Alloy
p.340

Experimental and Numeric Study of Flow Around a Parallelepiped Obstacle Issued from a Bent Chimney
p.346

Numerical Model for Multilayer Thin Films Irradiated by a Moving Laser Source
p.352

Transient Heat Conduction in Solids Irradiated by a Moving Heat Source
p.358

Lattice Boltzmann Simulations for Thermal Conductivity Estimation in Heterogeneous Materials
p.364

Hydrogen Trap on the Microstructure of Cr-Mo Type Steels
p.370

Problem of the Variability of Substitute Thermo-Physical Properties for Heat Transfer Modelling in Iso- and Iso-Exo Porous Materials
p.376

Heat Transfer during Hot Distortion Test of Ceramic Porous Material Bonded by Various Resins
p.382

Macroscopic and Microscopic Effects in Diffusion and Reaction in Catalyst Porous Particles
p.388

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Lattice Boltzmann Simulations for Thermal Conductivity Estimation in Heterogeneous Materials

Abstract:

For simulating flows in a porous medium, a numerical tool based on the Lattice Boltzmann Method (LBM) is developed with regards to the classical D2Q9 model. A short description of this model is presented. This technique, applied to two-dimensional configurations, indicates its ability to simulate phenomena of heat and mass transfer. The numerical study is extended to estimate physical parameters that characterize porous materials, like the so-called Effective Thermal Conductivity (ETC) which is of our interest in this paper. Obtained results are compared with those which could be found analytically and by theoretical models. Finally, a porous medium is considered to find its ETC.