Reply To: Bioreactor Mixing time CFX analysis (Workbench)

[Rob]

I'm not a CFX user, so more generic comments. 

If you're using DPM can you run steady state and then run the transient tracer on a frozen flow field? That'll also work with a full multiphase calculation if you don't mind a small error margin as the flow does change with time. 

In terms of monitoring mixedness. You can't use mean/min/max concentrations as such, as that will be global and there's always a region with zero concentration or similar. In Fluent there is a uniformity index, maybe review that for CFD Post?  I'd not try and parameterise this, it's more a case of running the model(s) and then doing the last bit manually. It will take run time (transient always takes many hours/days) but shouldn't use too much engineer effort.