[xiaozou]

Dear all.I want to simulate a freezing process by using Flow-3d. I choose the solidification model,heat transfer model,density evolution model.The solidification model with thermal stress for water and fluid structure interaction with coupling for stress calculation on container.But I can not simulate the volume expansion process of water in the freezing process,I hope someone can tell me what should I do.Thank you.

[EternalEnvy]

I don't know whether it will work, but I advise you to try to change the density of the material rho(ijk) in the subroutine. remember to check density evaluation physics.