Two phase flow with VOF
 

I am working on annular flow modelling with VOF model. VOF model is very unstable to capture annular flow's details. Interface position is important for me but I could find any satisfactory solution. How can I can get better solutions with Fluent's VOF model? Is someone there who can help me to provide information for this problem? Thanks already

Re: Two phase flow with VOF
 

Maybe you need to try unsteady simulation. I solve VOF with tiny time step before and found the result satisfactory. Maybe you also need to apply 2nd order discretisation too. regards, Jolius

Re: Two phase flow with VOF
 

i want to model fluid flow in mold(casting) i select 2 phase model and vof but my answer is not correct please guide me

very very thank

Re: Two phase flow with VOF
 

Dear Mr. Mohammed are you consider the two phase flow in your case as stratified or no. gave me your answer in my email below: khalidb77@yahoo.co.uk