Simulation of chemical vapor infiltration and deposition based on 3D images: a local scale approach
Résumé
A numerical solution for the simulation of chemical vapor infiltration of ceramic matrix composites is presented. This computational model requires a 3D representation of the preform. Gas transport and chemical reaction are simulated by a Monte Carlo random walk technique. The developed algorithm can also be used for determination of effective transport and reaction properties in a porous medium. It is firstly validated by considering the simple case of diffusion and reaction in a flat pore. Results of infiltration of an actual fiber arrangement are described and discussed. Extension to deposition on a thin substrate with asperities is also studied.
Origine : Fichiers produits par l'(les) auteur(s)
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