help needed with fvc::div()
I have tried to do an equation that is solved using fvScalarMatrix. One of the terms in this equation is (Ua+Ub)div(kab),
where Ua and Ub are volVectorField and kab is volScalarField and also the unknown of this equation.
I have tried to do this term by using the following
(Ua+Ub) & fvc::div(kab) in the fvScalarMatrix.
I also tried to do this fvc::div(kab) outside the ScalarMatrix to see if it works that way. I get an error message.
"createFields.H:332: error: no matching function for call to 'div(Foam::volScalarField&)' "
Could someone help me and tell me what I'm doing wrong? I don't have a lot of experience with OpenFoam yet.
There are similar equations in my code, that work just fine, but in those the divergence term is normal.
divergence of a scalar!!!
The error message cant be much clearer.
divergence works on vectors...returns a scalar.
grad works on scalars....returns a vector
I have been laughing at myself here when I read your reply.
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