[Thomas pan]

Hi, foamers

I found fvm::div(phi) which is blockVectorMatrix in foam-extend3.1 fvmDiv.H.

PHP Code:

template<class Type>
    tmp<blockVectorMatrix> div
    (
        GeometricField<Type, fvPatchField, volMesh>&,
        const word&
    );

    template<class Type>
    tmp<blockVectorMatrix> div
    (
        GeometricField<Type, fvPatchField, volMesh>&
    ); 


But why there isn't <fvMatrx>fvm::div(phi)? I want to use a implicit scheme such fvm::div(rhoFlux) in densityBased solver. Can I implement it like this:

PHP Code:

template<class Type>
    tmp<fvMatrix> div
    (
        GeometricField<Type, fvPatchField, volMesh>&
    ); 


Who can tell me the difference between fvMatrix and blockMatrix? How can I implememnt fvm::div(phi)? I can't express it as fvm::div(rho,phi), because rhoFlux is calculated by such as roe scheme.

[Thomas pan]

no one can help me?

[youmengtear]

i'm using extend3.2. In this version in fvm namespace have div and UDiv. The difference is the backtrack is fvMatrix or BlockLduSystem. From 3.1 the coupled system has been introduced. I think blockMatrix is introduced for this reason