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Macroscopic model for equiaxed solidification of binary mixtures


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4th International Conference on Computational Heat and Mass Transfer
(ICCHMT’05), Paris-Cachan

Patrick Roux , Dominique Gobin, Benoît Goyeau, Florian Fichot et Michel Quintard.

Type de document > *Congrès/colloque

Mots clés > sûreté, mélange binaire, solidification

Unité de recherche > IRSN/DPAM/SEMCA/LESAM

Auteurs > FICHOT Florian

Date de publication > 02/05/2005

Résumé

A macroscopic model for solidification of binary mixtures accounting for solid transport is under investigation. Average conservation equations are derived using a volume averaging technique.
Such upscaling procedure introduces non classical terms in the resulting macroscopic conservation equations. A closure is proposed for these particular terms. The model is tested on a sedimentation case and for equiaxed solidification.