Conductive Heat Transfer in Metallic/Ceramic Open-Cell Foams

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...

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Bibliographic Details
Published in:Advanced engineering materials 2008-04, Vol.10 (4), p.323-337
Main Authors: Coquard, R., Loretz, M., Baillis, D.
Format: Article
Language:English
Subjects:
Cellular materials
Finite element method
Heat conduction
Lattice-Boltzmann method
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Summary: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.
ISSN:1438-1656
1527-2648
DOI:10.1002/adem.200700331