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Old   April 8, 2016, 12:18
Default Simulating two fluids in CFX
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James Willie
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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
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Old   April 9, 2016, 06:56
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Glenn Horrocks
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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?
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Old   April 15, 2016, 09:00
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James Willie
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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



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Originally Posted by ghorrocks View Post
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?
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Old   April 15, 2016, 11:11
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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

How to set different physics timescales in two separted fluid domain?
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