[atelcikti1]

Hi fellows,

I am trying to simulate solid rocket motor with aluminium combustion in it. The species mixture is my continuous phase. Al and Al2O3 are my DPM components.

In summary, Al solid (or liquid does not matter) coming from burning propellant surface, and reacting with O2 exists in mixture species and turns into Al2O3 (liquid). So I just decided to use multi-component DPM and wrote heat and mass transfer udf for it (I know the empirical equation for Al2O3 mass generation, so no need to solve any chemical kinetics). But it seems like there is no Al2O3 generation occur (although, i am giving source terms to dydt array), and my all Al evaporating (even tough there is no evaporation rule is selected).

Is there a way to enforce mass/heat transfer between DPM components (Al and Al2O3 in my case) but not between continuous and discrete phase?