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Old   September 16, 2019, 09:28
Default Modify a solver
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I have modified interFoam solver without making any changes within.

I have already had a look at https://openfoamwiki.net/index.php/H...ure_to_icoFoam and have been successful with the example.

I have changed the folder name
changed the .C file
changed the Make-files
Code:
XFoam.C

EXE = $(FOAM_USER_APPBIN)/XFoam
but I get an error when I compile
Code:
Making dependency list for source file XFoam.C
SOURCE=XFoam.C ;  g++ -m32 -Dlinux -DWM_DP -Wall -Wextra -Wno-unused-parameter -Wold-style-cast -O3  -DNoRepository -ftemplate-depth-100 -I/opt/openfoam231/src/transportModels/twoPhaseMixture/lnInclude -I/opt/openfoam231/src/transportModels -I/opt/openfoam231/src/transportModels/incompressible/lnInclude -I/opt/openfoam231/src/transportModels/interfaceProperties/lnInclude -I/opt/openfoam231/src/turbulenceModels/incompressible/turbulenceModel -I/opt/openfoam231/src/transportModels/immiscibleIncompressibleTwoPhaseMixture/lnInclude -I/opt/openfoam231/src/finiteVolume/lnInclude -I/opt/openfoam231/src/fvOptions/lnInclude -I/opt/openfoam231/src/meshTools/lnInclude -I/opt/openfoam231/src/sampling/lnInclude -IlnInclude -I. -I/opt/openfoam231/src/OpenFOAM/lnInclude -I/opt/openfoam231/src/OSspecific/POSIX/lnInclude   -fPIC -c $SOURCE -o Make/linuxGccDPOpt/XFoam.o
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcDiv.C:29:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcDiv.H:180,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcDDt.C:27,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcDDt.H:76,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:45,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/divScheme.H: In constructor ‘Foam::fv::divScheme<Type>::divScheme(const Foam::fvMesh&)’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/divScheme.H:111:32: error: expected type-specifier before ‘linear’
             tinterpScheme_(new linear<Type>(mesh))
                                ^
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcGrad.C:29:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcGrad.H:124,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:49,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/gaussGrad.H: In constructor ‘Foam::fv::gaussGrad<Type>::gaussGrad(const Foam::fvMesh&)’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/gaussGrad.H:88:32: error: expected type-specifier before ‘linear’
             tinterpScheme_(new linear<Type>(mesh))
                                ^
/opt/openfoam231/src/transportModels/incompressible/lnInclude/gaussGrad.H: In constructor ‘Foam::fv::gaussGrad<Type>::gaussGrad(const Foam::fvMesh&, Foam::Istream&)’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/gaussGrad.H:101:21: error: expected primary-expression before ‘(’ token
                     (
                     ^
/opt/openfoam231/src/transportModels/incompressible/lnInclude/gaussGrad.H:102:29: error: expected type-specifier before ‘linear’
                         new linear<Type>(mesh)
                             ^
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.H:150:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/laplacianScheme.H:42,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.C:28,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.H:242,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:53,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.C: In member function ‘Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> > Foam::fv::correctedSnGrad<Type>::fullGradCorrection(const Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>&) const’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.C:54:9: error: ‘linear’ was not declared in this scope
       & linear<typename outerProduct<vector, Type>::type>(mesh).interpolate
         ^
/opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.C:54:9: note: suggested alternative:
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcAverage.C:29:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcAverage.H:91,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:42,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/linear.H:52:7: note:   ‘Foam::compressibilityModels::linear’
 class linear
       ^
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.H:150:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/laplacianScheme.H:42,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.C:28,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.H:242,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:53,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.C:54:57: error: expected ‘(’ before ‘>’ token
       & linear<typename outerProduct<vector, Type>::type>(mesh).interpolate
                                                         ^
/opt/openfoam231/src/transportModels/incompressible/lnInclude/correctedSnGrad.C:54:65: error: ‘const class Foam::fvMesh’ has no member named ‘interpolate’
       & linear<typename outerProduct<vector, Type>::type>(mesh).interpolate
                                                                 ^
In file included from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.C:28:0,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvcLaplacian.H:242,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvc.H:53,
                 from /opt/openfoam231/src/transportModels/incompressible/lnInclude/fvCFD.H:8,
                 from XFoam.C:40:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/laplacianScheme.H: In constructor ‘Foam::fv::laplacianScheme<Type, GType>::laplacianScheme(const Foam::fvMesh&)’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/laplacianScheme.H:113:37: error: expected type-specifier before ‘linear’
             tinterpGammaScheme_(new linear<GType>(mesh)),
                                     ^
In file included from createFields.H:29:0,
                 from XFoam.C:60:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/createPhi.H: In function ‘int main(int, char**)’:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/createPhi.H:49:24: error: ‘linearInterpolate’ was not declared in this scope
     linearInterpolate(U) & mesh.Sf()
                        ^
In file included from XFoam.C:60:0:
createFields.H:74:13: error: ‘incompressible’ was not declared in this scope
     autoPtr<incompressible::turbulenceModel> turbulence
             ^
createFields.H:74:44: error: template argument 1 is invalid
     autoPtr<incompressible::turbulenceModel> turbulence
                                            ^
createFields.H:75:5: error: invalid type in declaration before ‘(’ token
     (
     ^
createFields.H:76:9: error: ‘incompressible’ is not a class or namespace
         incompressible::turbulenceModel::New(U, phi, mixture)
         ^
In file included from XFoam.C:64:0:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/CourantNo.H:51:1: error: ‘namespace’ definition is not allowed here
 namespace Foam
 ^
In file included from XFoam.C:65:0:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/setInitialDeltaT.H:35:40: error: ‘CoNum’ was not declared in this scope
     if ((runTime.timeIndex() == 0) && (CoNum > SMALL))
                                        ^
In file included from XFoam.C:76:0:
setDeltaT.H:37:20: error: ‘CoNum’ was not declared in this scope
         min(maxCo/(CoNum + SMALL), maxAlphaCo/(alphaCoNum + SMALL));
                    ^
In file included from XFoam.C:90:0:
UEqn.H:5:19: error: base operand of ‘->’ is not a pointer
       + turbulence->divDevRhoReff(rho, U)
                   ^
XFoam.C:100:27: error: base operand of ‘->’ is not a pointer
                 turbulence->correct();
                           ^
In file included from XFoam.C:61:0:
/opt/openfoam231/src/transportModels/incompressible/lnInclude/readTimeControls.H:38:8: warning: unused variable ‘maxDeltaT’ [-Wunused-variable]
 scalar maxDeltaT =
        ^
make: *** [Make/linuxGccDPOpt/XFoam.o] Error 1
Where am I going wrong?
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Old   September 16, 2019, 11:39
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My first guess would be don't use a space in a file name in linux. Rather than "new linear", try "new_linear".
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Old   September 16, 2019, 12:03
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My folder name doesnt have any space (changed from interFoam to XFoam)
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Old   September 16, 2019, 13:32
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Somewhere the compiler is seeing "new linear" and bombing on that. Because there is white space between those words the compiler sees it as a name and a modifier. I am not familiar with openFoam or any of its derivatives, but your compiler problem seems to be that "new linear" doesn't need to appear as two words. Find that and you'll probably fix your problem.
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