[atulverma]

Hi Everybody!
I read the technical note by "Hirt" on Air Entrainment it says the modeling must be done with turbulence.I have laminar filling(single fluid model) of the die but the gates are so designed that it sure to get the fluid overturning and thus get air entrainment.Accidentally before reading the note I switched on the model with the flow being laminar and got some results,I wonder what does that represent and I could see the voids but they were not represented as air entrained(I did put some value of surface tension),I understand that Flow3d uses the relation given in the note,but are voids not the air inside the fluid.Thus the representation is not clear and the limitations of the model should be put down clearly.
Ideally there should be no air entrainment during laminar filling but in my case it visible that air would be trapped inside and it is seen as void(complement of fluid fraction).My question is can I model air entrainment for the laminar flow I have mentioned.
Thanks
Atul