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new equation for a modell coefficient

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Old   January 8, 2015, 05:13
Default new equation for a modell coefficient
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Hi eyeryone.

I have a V2F-Model (sub-model of k-epsilon) and i want to extend/replace the C1e model coefficient with 1.44 (1+sqrt(k/vē)).

Somebody told me that i can create a field function, which subtracts the part i want to suppress and add the part i want to bring in the formulation. I have no idea how to do that, because of less experience about the field function commands.

Thanks for your help.
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