MICRESS Forum

Hi, there:

I am trying to run a calculation of solidification of multi-grain (as attached). One half of the system are solid grains and the other half (right) is liquid. Although I enabled all "phase interaction", the solid/liquid interface can not be established for calculation. One way to view this problem is from intf plot: solid/liquid interface is sharp. Any suggestion?

Thanks.

Dear ning,

from the picture only it is difficult to understand why this happens. If you say the phase interaction 0/1 is switched on ("phase_interaction"), and the "Number of steps to adjust profiles of initially sharp interfaces" is >0, the solid-liquid interface in your case should also be (at least slightly) smooth.
For further investigation, it would be interesting to see the input file. Did you read the initial microstructure from file or create it with MICRESS itself? Are there other phases which are 'inert', and did you check that the phases are attributed correctly? What happens during run-time, does the interface still stays sharp? Is the interface completely sharp (only 0 and 1 in .frac0), or is it only almost sharp? Did you use extremely different values of the interface energy for phase interactions 0/1 1/1?

Bernd