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viscosity defined by pressure and temperature

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Old   January 17, 2014, 08:33
Default viscosity defined by pressure and temperature
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Hi @all,

i want to define the viscosity as a function of pressure and temperature.
I need that to calculate an ol, that is mixed with CO2.
I just have a table, where i can go from pressure and temperature to the mix ratio and then from mix ratio and temperature to the viscosity.

Is it possible to give fluent that Table?
Do I need to programm that with UFD?
And: Maybe someone did that before and send me the UFD?

Thanks a lot!

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Old   January 17, 2014, 10:31
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Hi Bleseb.

Yes, it is possible to use such a table in Fluent.
Yes, you have to use a UDF for that.
No, I don't have such a UDF ready, and I doubt if somebody will have exactly what you want.

Make some efforts in writing such a UDF, and if you come into specific problems, you can ask here.

Good luck!
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pressure, temperature, viscosity

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