Learning Forum

[Rachit Bundiwal]

Hii , i am modelling a multiphase VOF problem and in it i need to run air as compressible and water as incompressible in a pressure based solver . can anyone help me out how to do that ?.

[SRP]

Hi,

You need to air as a primary phase since it is compressible for better solution stability.

Can you please explain in more detail what exactly problem you are facing while modeling?

Thank you.

[Rachit Bundiwal]

Hi thanks for reply , i am trying to simulate a swirl flow using K-e RNG , using velocity inlet as BC , for both the inlets . but the problem arises during the initialization , when primary inlet is selected it is not showing it . And showing absurd values . Any resons for that ?  

[Rob]

You may need to rethink how you initialise the problem. Pictures will help us understand what you're up to.