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Change diffusivity in porous media

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Old   February 23, 2006, 19:24
Default Change diffusivity in porous media
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Hi everyone:

I'm trying to change the values of the diffusivity in the porous zone according to the Bruggemann correction. But my model not only consist in porous zones I have flow channels too and I'm afraid that if link the UDF, this will change the diffusivity in the whole model. I'm writing an UDF based on the example that is in the section 3.10.2 of the UDFs tutorial. But when I compiled the UDF, Fluent show me this message; "structure referenced not implemented". I will be very grateful if anybody could give me an advice to solve this problem.

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