Rice cooking in openfoam
 

Hello all
I would like to simulate cooking of rice in openfoam. My set up consist of a cylindrical vessel filled with water and some quantity of rice in it.
The major challenges in simulating this process:
1) Swelling of rice due to heat absorption.
2) Flow of rice within the vessel.
3) Fluid flow obstruction by the cooked rice at some locations inside the vessel.

Some solution:
1) We can treat rice as a fluid of some viscosity other than water and it's viscosity changes with water absorption.

Please guide me to find a suitable solver for simulating this phenomenon.

Thanks
Nitin Minocha