[Surinder]

I am working on finding the transient flow in gas stirred ladle. I am injecting air from central nozzle located at bottom in water bath. I had simulated the result. But, when I see it in the CFD Post in volume fraction plot I can see the plume forming water upto a certain level after that air as I have used patch option but when I see the water velocity vectors I am getting Velocity Vectors in the zone where there is no water. I don't know. I would really be thank ful if anybody could help