[Anurag_B]

Hello,

I am modeling slurry droplet evaporation inside a spray dryer. I have written a UDF which runs perfectly when the 'interaction with continuous phase' option is turned off. But when turned on, I get the following errors, right after injection starts-

...
Divergence detected in AMG solver: epsilon Stabilizing species-0 to enhance linear solver robustness.
Stabilizing species-0 using GMRES to enhance linear solver robustness.

Divergence detected in AMG solver: species-0 Stabilizing species-1 to enhance linear solver robustness.
Stabilizing species-1 using GMRES to enhance linear solver robustness.

Divergence detected in AMG solver: species-1 Stabilizing temperature to enhance linear solver robustness.
Stabilizing temperature using GMRES to enhance linear solver robustness.

Divergence detected in AMG solver: temperature
Divergence detected in AMG solver: x-momentum
Divergence detected in AMG solver: y-momentum
Divergence detected in AMG solver: z-momentum
Divergence detected in AMG solver: pressure correction
Divergence detected in AMG solver: k
Divergence detected in AMG solver: epsilon
Divergence detected in AMG solver: species-0
Divergence detected in AMG solver: species-1
...
Error at Node 11: floating point exception
Error at Node 9...
...


I have tried reducing the URF for all above, set methods to first order upwind and also reducing the number of streams, but the errors persists. Any pointers on how to fix this issue would be greatly appreciated.