Reply To: Fatal error in compute processes

[SageArt]

I didn't submit my full code but I did define cell memories and the case works just fine when I am only having porosity. However when I add viscous resistance it gives me that cortex error. I am open to trying out fluent expressions, please link me to a resource that I can refer to for those.
Moreover please elaborate on the last point you raised, I don't get it.