Learning Forum

[Geoff]

Yes I am refering to FIX cell condition. It seems there isn't much that can be done about the result that it produces?

I am refering to fluid mass. I have not tried to run the scalar simulation with the flow field generated from the fixed value cell condition. If the primary flow fluid mass conservation is not good the scalar cannot be expected to have good scalar mass conservation, hence I am focusing on the primary flow for now. 

I am now also considering a new stratedgy of running the simulation with the flow equation active for one very small timestep rather than the fixed cell condition. I rather have a small change in the primary flow but good mass conservation than a perfect match of the nodal vecity field and poor conservation.