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interfacial area concentraction UDS in Fluent 6.3 and 14.0

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Old   February 19, 2013, 12:49
Default interfacial area concentraction UDS in Fluent 6.3 and 14.0
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Xinquan
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Hello,

I am trying to do a two-phase flow simulation using interfacial area transport equations, however I have some problems.

I have some UDFs defining our own drag and lift models. However, these models are written with the interfacial area concentration embedded as a UDS. Certainly I have the code defining interfacial area concentration as a UDS because all these UDFs were written for Fluent 6.3.

However, I am using fluent 14.0, in which the interfacial area concentration model was already embedded. I don't need to add a UDS for interfacial area concentration. But I don't know how to implement the UDFs of drag and lift since the interfacial area concentration was still used as UDS rather than an existing model or macro in fluent.

I am not sure if I stated my problems clearly or not. Please let me know if anyone can help. Thx!!
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Old   January 20, 2015, 17:02
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Hi, Did you figure out how to do this?

I would like to modify interfacial area concentration and there is a possibility in GUI to add UDF but I cannot find how the macro in fluent for interfacial area should looks like.
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