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Conductive Heat Transfer in Metallic/Ceramic Open‐Cell Foams
Author(s) -
Coquard R.,
Loretz M.,
Baillis D.
Publication year - 2008
Publication title -
advanced engineering materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 114
eISSN - 1527-2648
pISSN - 1438-1656
DOI - 10.1002/adem.200700331
Subject(s) - materials science , thermal conduction , heat transfer , ceramic , thermal conductivity , microstructure , composite material , metal foam , lattice boltzmann methods , ceramic foam , porosity , finite element method , electrical conductor , thermal , porous medium , metal , thermodynamics , metallurgy , physics
This study is interested in the heat conduction in porous metallic/ceramic foams characterized by their complex morphology and the large difference between the thermal conductivities of the fluid and solid phases. We have developed two numerical simulations of the heat conduction in a 3‐D two‐phase material based on the Finite Element Method and on the Lattice‐Boltzmann Method. The foam microstructure is modeled by various polyhedral open cells formed by solid struts with different shapes. The accordance between the results of the two numerical methods is excellent. The simulations allow to investigate theoretically the influence of the structural parameters on the magnitude of heat conduction.