Mohammad Hossain
Subscriber

 

After injecting air through the inlet, air forms bubble with different shapes. As a result, some part in the domain contains only air with volume fraction 1 (that means no-water). Still we don’t see any variation of the scalar. We thourght that, as you also mentioned (the scalar is wighted by volume fraction of water), the plot would look like similar to the plot of volume fraction of water, but the plot of scalar shows same everywhere even where there is only air. Is there anything we are missing?

Note that this scalar can exist only in water as it is associated with water phase.