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Old   September 26, 2022, 16:19
Default Problem calculating grad(U) while adding a source term
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Dimas
Join Date: Oct 2021
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Hi everyone! Im trying to compile a source term which uses grad(U) for the force calculation in OpenFOAM 2.4.0. For some reason the following line does not work:


Code:
volTensorField gradU = fvc::grad(U);
I saw several posts where this line is valid but when i try to compile the following error appears:


Code:
error: no matching function for call to ‘grad(const vectorField&)’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:51:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh>&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:51:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh>’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:68:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:68:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::tmp<Foam::GeometricField<Type, Foam::fvsPatchField, Foam::surfaceMesh> >’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:91:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>&, const Foam::word&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:91:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:113:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh> >&, const Foam::word&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:113:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh> >’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:142:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:142:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh>’
 volTensorField gradU = fvc::grad(U);
                                   ^
In file included from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.H:124:0,
                 from /home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvc.H:49,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:61,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:159:1: note: candidate: template<class Type> Foam::tmp<Foam::GeometricField<typename Foam::outerProduct<Foam::Vector<double>, Type>::type, Foam::fvPatchField, Foam::volMesh> > Foam::fvc::grad(const Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh> >&)
 grad
 ^
/home/dbarile/OpenFOAM/OpenFOAM-2.4.0/src/finiteVolume/lnInclude/fvcGrad.C:159:1: note:   template argument deduction/substitution failed:
In file included from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.H:374:0,
                 from sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_Source.C:58:
sources/derived/actuationDiskV10b_calib_Source/actuationDiskV10b_calib_SourceTemplates.C:439:35: note:   ‘const vectorField {aka const Foam::Field<Foam::Vector<double> >}’ is not derived from ‘const Foam::tmp<Foam::GeometricField<Type, Foam::fvPatchField, Foam::volMesh> >’
 volTensorField gradU = fvc::grad(U);
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Old   October 6, 2022, 00:47
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Tatsuya Shimizu
Join Date: Jul 2012
Posts: 42
Rep Power: 14
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Hi

The error occurs because the "U" used in your code is a vectorField.


NOTE: How to convert vectorField to volVectorField
How to convert vectorField to volVectorField

NOTE: difference volVectorField and vectorField
difference volVectorField and vectorField
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Old   October 12, 2022, 17:00
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Dimas
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Rep Power: 5
dimasbarile is on a distinguished road
Quote:
Originally Posted by LongGe View Post
Hi

The error occurs because the "U" used in your code is a vectorField.


NOTE: How to convert vectorField to volVectorField
How to convert vectorField to volVectorField

NOTE: difference volVectorField and vectorField
difference volVectorField and vectorField

Thank you very much LongGe! Now it's working fine
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