[Fauster]

Dear Foamers,

I am interested in multiplying or dividing a fvScalarMatrix by a volScalarField.
In a case of a fvc operator like fvc::div or fvc::laplacian the code compiles.

For example :

volScalarField alpha(...);

fvc::laplacian(d,T)/alpha

-> ok for compilation

Unfortunately when it comes to implicit operator (fvm) the code doesn't compile :

fvm::laplacian(d,T)/alpha

-> ERROR at compilation

How can we solve this issue ? Am I asking something unrealistic ? In a pure mathematical way it makes sense. But OpenFOAM doesn't seem to like it.

All help would absolutely be helpful.

F

[Onurb]

Hello Fauster,

laplacian is misspelled.

[Fauster]

Originally Posted by Onurb

Hello Fauster,

laplacian is misspelled.

Sorry Onurb. I made a mistake when writing the text but in the code this is

laplacian

.

I can copy paste the message error at compilation but for me it's like this is not authorized by OpenFOAM.
For example if you try to do something like fvc::interpolate(surfaceScalarField).

[CorbinMG]

Dear Fauster,

I had same problem as you. It seems if you switch the order of multiplication, it works OK. That is volScalarField*fvScalarMatrix IS possible. But, fvScalarMatrix*volScalarField gives compilation error:

volScalarField rhoCp1 = rho1*alpha1*mixture.thermo1().Cp() + rho2*alpha2*mixture.thermo2().Cp();
fvScalarMatrix eEqn
(
rhoCp1*fvm::ddt(T)         //  compiles OK!
//fvm::ddt(T)*rhoCp1      //  gives compilation error!
==
fvOptions(rhoCp1, T)
);