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Theses
Reconstruction stochastique 3D d'un matériau céramique poreux à partir d'images expérimentales et évaluation de sa conductivité thermique et de sa perméabilité
Reconstruction stochastique 3D d'un matériau céramique poreux à partir d'images expérimentales et évaluation de sa conductivité thermique et de sa perméabilité
Abstract : The three-dimensional reconstruction of a representative sample of a biphasic ceramic material from a 2D structural image is proposed. The algorithm is of stochastic nature and is based on the minimization by a simulated annealing scheme. The statistical method of Lattice Boltzmann is presented to simulate the phenomena of mass transport in order to estimate the permeability of the sample by a model LB D3Q19. The “effective” thermal conductivity in the 3D space is evaluated by the finite difference method by a Dufort-Frankel scheme. The tests show the ability of the reconstruction tool associated with the tools for simulations of phenomena of heat and mass transfer to digitally synthesize heterogeneous or porous materials and determine its physical parameters.
Cited literature [183 references]
https://tel.archives-ouvertes.fr/tel-00514461
Contributor : Bernard Pateyron <>
Submitted on : Thursday, September 2, 2010 - 2:50:51 PM
Last modification on : Wednesday, February 14, 2018 - 3:40:58 PM
Long-term archiving on: : Friday, December 3, 2010 - 2:43:11 AM
Contributor : Bernard Pateyron <>
Submitted on : Thursday, September 2, 2010 - 2:50:51 PM
Last modification on : Wednesday, February 14, 2018 - 3:40:58 PM
Long-term archiving on: : Friday, December 3, 2010 - 2:43:11 AM