Mhd model of a crucible furnace

Dear collegues,
i´m setting the procedure to evaluate the movement of the molten metal in a simple crucible furnace: reading the papers from comsol
( www.comsol.asia/paper/download...3709/quintana_presentation.pdf ,
www.comsol.com/paper/download/83615/roy_paper.pdf ) and from internet
(www.comsol.eu/paper/download/14619/Ernst_pres.pdf ,
www.comsol.com/model/download/...luid_structure_interaction.pdf), and thanks to a COMSOL user, Mehrez Agnaou, i describe my study considering the magnetic field module (ACDC), the general coefficient form (PDE) with the weak form add, heat transfer and Lagrangian (ALE) modules.

In order to compute it, which kind of study should i have to set? I suppose first time dependent with a segregated solver, but it gives me errors about void equations (and that´s, i think, closely related to the segration solver itself).


Thanks for any suggestion!
Gianmarco