Numerical modelling of thermoelectric magnetic effects in solidification

Yves Du Terrail Couvat (1) , A Gagnoud (1) , D Brasiliano (1) , O Budenkova (1) , Y Fautrelle (1)

1 SIMaP - Science et Ingénierie des Matériaux et Procédés

Since several years experiments performed on solidification of alloys with application of a static magnetic field show a significant effect of the latter on the solidified structure and segregation. A hypothesis suggests that these modifications are related to a thermoelectric magnetic force. Serious efforts were made to reproduce observed phenomena with numerical modeling, yet, they faced significant difficulties. In the paper we discuss some numerical issues using a model magneto-thermoelectric problem coupled with hydrodynamics with finite volume and a finite element method.

Mots clés: thermoelectric effect; finite element method; finite volume method; magnetohydrodynamics

Domaines: Sciences de l'ingénieur [physics]

Yves Du Terrail Couvat, A Gagnoud, D Brasiliano, O Budenkova, Y Fautrelle. Numerical modelling of thermoelectric magnetic effects in solidification. 8th International Conference on Electromagnetic Processing of Materials, Oct 2015, Cannes, France. ⟨hal-01331862⟩