udf for multiphase flow with real gas mixture

sugumaran · July 30, 2010, 12:09

dear all.....
i m working on the project inwhich i supposed to separate the oxygen(liquid) from air(liq-gas mix) with real gas model.. this multiphase flow in cryogenic conditions can be done by writing udf.. all i need that some help to initiate the problem... is that any udf tutorial available?
please help me..its urgent ..
thanks

abhishekss123 · July 25, 2011, 11:34

Dear sugumaran,
I am working on Fluent multi-phase modelling for simulating Helium-Hydrogen mixing at cryogenic conditions.
The problem is, FLUENT does not allow the use of Real gases with any of the multi-phase models. So I suppose, I will have to use the multi-species model.
What do you think? Is there any other solution? How did you simulate your model?
Will I have to write any UDFs? If so for what purpose?
Please guide.

Niru · January 27, 2013, 23:10

you can try CFX . In materials section, you can choose real gas models for refrigerants.

July 30, 2010, 12:09	udf for multiphase flow with real gas mixture	#1
sugumaran New Member sugumaran Join Date: Apr 2009 Posts: 9 Rep Power: 17	dear all..... i m working on the project inwhich i supposed to separate the oxygen(liquid) from air(liq-gas mix) with real gas model.. this multiphase flow in cryogenic conditions can be done by writing udf.. all i need that some help to initiate the problem... is that any udf tutorial available? please help me..its urgent .. thanks

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July 25, 2011, 11:34		#2
abhishekss123 New Member Abhishek Join Date: Sep 2010 Posts: 3 Rep Power: 15	Dear sugumaran, I am working on Fluent multi-phase modelling for simulating Helium-Hydrogen mixing at cryogenic conditions. The problem is, FLUENT does not allow the use of Real gases with any of the multi-phase models. So I suppose, I will have to use the multi-species model. What do you think? Is there any other solution? How did you simulate your model? Will I have to write any UDFs? If so for what purpose? Please guide.

January 27, 2013, 23:10		#3
Niru Member niru Join Date: Apr 2012 Posts: 55 Rep Power: 14	you can try CFX . In materials section, you can choose real gas models for refrigerants.