[m.uzair]

I am simulation biomass drying using thermal phase change evaporation-condensation model (eulerian multiphase).

initial conditions:

Biomass initial volume fraction: 0.6, Temperature: 300 K

Air: initial temperature 300k... gradually increasing with time

after initializing, i check contours of static temperature of biomass. It shows 300 k throughout the domain.

when i run simulation for 1 time step (or even more), i check the contours. It shows 300 K where biomass is patched and the rest of the domain shows 373 K. Attached pics.



Then I tried with the energy equation turned off in the beginning, and later I turned on the energy equation. The instant I turn ON the energy equation, the warning comes..

Temperature limited to 1.000000e+00 in 15337 cells on zone 2 in domain 3

and the area weighted average of biomass-temperature drops to less than 50 K from 300 K.

Can someone please address this issue. the temperature should be 300K throughout the domain. I have checked again and again by turning off the evaporation condensation model. when i turn off the model, there is no such problem.



Thanks