| Issue |
J. Phys. IV France
Volume 11, Number PR6, Octobre 2001
Sciences de la matière et microgravité
|
|
|---|---|---|
| Page(s) | Pr6-151 - Pr6-159 | |
| DOI | https://doi.org/10.1051/jp4:2001618 | |
Sciences de la matière et microgravité
J. Phys. IV France 11 (2001) Pr6-151-Pr6-159
DOI: 10.1051/jp4:2001618
1 L2MP, Université d'Aix Marseille III, UMR 6137 du CNRS, Faculté des Sciences et Techniques de Saint Jérôme, Case 151, 13397 Marseille cedex 20, France
2 SPCTS, UMR 6638 du CNRS, Faculté des Sciences de Limoges, 123 avenue Albert Thomas, 87060 Limoges cedex, France
3 L3M, FRE 22045 du CNRS, Université d'Aix Marseille II, 38 Joliot Curie, 13451 Marseille, France
© EDP Sciences 2001
J. Phys. IV France 11 (2001) Pr6-151-Pr6-159
DOI: 10.1051/jp4:2001618
Finite volume and spectral methods applied to Pb-30%TI alloy solidification
R. Guérin1, M. El Ganaoui2, P. Haldenwang3 and P. Bontoux31 L2MP, Université d'Aix Marseille III, UMR 6137 du CNRS, Faculté des Sciences et Techniques de Saint Jérôme, Case 151, 13397 Marseille cedex 20, France
2 SPCTS, UMR 6638 du CNRS, Faculté des Sciences de Limoges, 123 avenue Albert Thomas, 87060 Limoges cedex, France
3 L3M, FRE 22045 du CNRS, Université d'Aix Marseille II, 38 Joliot Curie, 13451 Marseille, France
Abstract
Convection developing in the melted alloy Pb-30 % TI is studied under up-ward directional solidification conditions. Numerical investigation is based on the collocation Chebychev methods and the enthalpy-porosity formulation associeted to the finite volume approximation. The methods is able to describe properly various convective solutal patterns and transitions according to gravity level (symmetric, asymmetric, time-dependent). Signature of on the solidification front unsteadiness in terme of the striations is exibited.
© EDP Sciences 2001