Simulating two fluids in CFX
 

Hi All,

Is there a way i can model both air and oil in CFX? I have defined both as separate domains and defined the oil as a new material. But i am not able to select only the oil and only the air. When i select for one domain, the same material appears in the other doman. Is there anything i am doing wrongly? The oil pipe is within the air Domain and would defining it as a subdomain make it to work?

Thanks!
Jimmy

Yes, and there is many ways of doing it: eularian multiphase, free surface models, oil droplet/air bubble particle tracking and many more.

But from your description you seem to have air in one domain and oil in another. Is this correct?

Yes, it is correct. I am looking at inlet air to a compressor and we want to use the inlet air to cool oil that is located in pipes at the inlet. In short I need to do conjugate heat transfer simulation.

I used to simulate combustion and would in that case define an air inlet and oil inlet as well.

I need to look at the tutorials again to see if I can figure a way out.

Thanks as usual for your support.

James

Similar questions have been posted in the past. If you search for constant physics, you may find some of the discussions.

In any case, here is one of them

http://www.cfd-online.com/Forums/cfx...id-domain.html