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CEL for Void Fraction gradient

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Old   January 15, 2018, 13:25
Default CEL for Void Fraction gradient
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cfxtwophaseflow
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Hi
I want to calculate the components of the gradient(void fraction) with CEL expression.
I defined a variable eps = air.vf
then I defined var1 = eps.Gradient X
var2 = eps.Gradient Y
var3 = eps.Gradient Z
I get this error :
Bad expression value 'Cvm2' detected in parameter 'Virtual Mass Coefficient' in object '/FLOW:Flow Analysis 1/DOMAINefault Domain/FLUID PAIR:air | water/MOMENTUM TRANSFER/VIRTUAL MASS FORCE'.
CEL error:
The following unrecognised name was referenced: eps.Gradient X, eps.Gradient Y, eps.Gradient Z.
I don't know why I can't use the gradient operator with eps and is there another way to do it?
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Old   January 15, 2018, 13:31
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I just solved this problem. I used air.vf.Gradient X instead of eps.Gradient X
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