[palarcon]

Dear all

I'm trying to perform a proof of concept by solving a Poisson equation.
This part is purely ''mathematical'' but because if the computation works I will add it to another OF solver.
The mathematical part inside the code is as follows:

scalar vVoid 		= 0.1;
vector cosSin(0.7071068,0.7071068,0);
Cxy = vVoid + (1-vVoid)*rho;	// volScalarField
Coh = Cxy * cosSin;				// volVectorField

fvScalarMatrix TarrivalEqn
(
	fvm::laplacian(Coh,Tarrival)
);
TarrivalEqn.solve();

Unfortunately, when I try to compile it I get the following error

Compiling enabled on 8 cores
Making dependency list for source file overhangFoam.C
g++ -std=c++14 -m64 -pthread -DOPENFOAM=2012 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -Wno-unknown-pragmas  -O3  -DNoRepository -ftemplate-depth-100 -I/usr/lib/openfoam/openfoam2012/src/finiteVolume/lnInclude -I/usr/lib/openfoam/openfoam2012/src/meshTools/lnInclude -iquote. -IlnInclude -I/usr/lib/openfoam/openfoam2012/src/OpenFOAM/lnInclude -I/usr/lib/openfoam/openfoam2012/src/OSspecific/POSIX/lnInclude   -fPIC -c overhangFoam.C -o Make/linux64GccDPInt32Opt/overhangFoam.o
g++ -std=c++14 -m64 -pthread -DOPENFOAM=2012 -DWM_DP -DWM_LABEL_SIZE=32 -Wall -Wextra -Wold-style-cast -Wnon-virtual-dtor -Wno-unused-parameter -Wno-invalid-offsetof -Wno-attributes -Wno-unknown-pragmas  -O3  -DNoRepository -ftemplate-depth-100 -I/usr/lib/openfoam/openfoam2012/src/finiteVolume/lnInclude -I/usr/lib/openfoam/openfoam2012/src/meshTools/lnInclude -iquote. -IlnInclude -I/usr/lib/openfoam/openfoam2012/src/OpenFOAM/lnInclude -I/usr/lib/openfoam/openfoam2012/src/OSspecific/POSIX/lnInclude   -fPIC -Xlinker --add-needed -Xlinker --no-as-needed  Make/linux64GccDPInt32Opt/overhangFoam.o -L/usr/lib/openfoam/openfoam2012/platforms/linux64GccDPInt32Opt/lib \
    -lfiniteVolume -lfvOptions -lmeshTools -lOpenFOAM -ldl  \
     -lm -o /home/pablo/OpenFOAM/pablo-v2012/platforms/linux64GccDPInt32Opt/bin/overhangFoam
/usr/bin/ld: Make/linux64GccDPInt32Opt/overhangFoam.o: in function `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::New(Foam::fvMesh const&, Foam::Istream&)':
overhangFoam.C:(.text._ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE[_ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE]+0x4b): undefined reference to `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::IstreamConstructorTablePtr_'
/usr/bin/ld: overhangFoam.C:(.text._ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE[_ZN4Foam2fv15laplacianSchemeIdNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE]+0x209): undefined reference to `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::IstreamConstructorTablePtr_'
collect2: error: ld returned 1 exit status
make: *** [/usr/lib/openfoam/openfoam2012/wmake/makefiles/general:150: /home/pablo/OpenFOAM/pablo-v2012/platforms/linux64GccDPInt32Opt/bin/overhangFoam] Error 1

Fields ''rho'', ''Cxy'' qnd ''Tarrival'' are defined as volScalarField with dimensions (Nelem x 1) and field Coh is a volVectorField with dimensions (Nelem x 3).

I know for certain that the problem arises when computing fvm::laplacian, because the types of the fields is not compatible with the operator.

I found a really old discussion that deals with the same problem, but unfortunately I don't understand how can I solve it in my case (original question convert dimensioned<double>’ to ‘double’, answer
convert dimensioned<double>’ to ‘double’)

The mathematical problem I'm trying to solve is in the attached file:

Does anyone knows how to solve it? My gut tells me I'm missing some fundamental stuff, but I can not see it.

Thanks you in advance