Two solid phase

Dear friends
Can I patch the two (different sizes and density) solid particle 2D TFM cases? could you tell me how can
i solve this problem in the MFix? also, I want to find the volumetric heat transfer. could you suggest to me how it is solve.

I do not understand the question and what you mean by “patch”.
Please provide files and explain exactly what you are trying to do.

In the 2D TFM, problem, the primary phase is gas and the secondary phase is two solids having different sizes (200, 300um), with has solid volume fraction is 0.6. I want to fill in the domain with two solid particles (its mean 1-bed region 40% and second bed region 60%).
I am solving this problem but it takes so much time for 1sec (24 hours).
please find the bug report.
binary_2023-09-25T200034.194211.zip (24.0 KB)