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Second Derivative Zero - Boundary Condition

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Old   June 21, 2011, 04:52
Default Second Derivative Zero - Boundary Condition
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Fu
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Hi Everybody !

Greetings

I am doing a natural convection problem in which i want to put second derivative of a scalar =0. How can i implement it in openFoam?

Mathematically

\frac{d^2 T}{dx^2} = 0 or \frac{d^2 T}{dy^2} = 0

Thanks and Regards

Fuki
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Old   June 22, 2011, 17:28
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Eugene de Villiers
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There might be other ways, but I use a fixed gradient boundary and then set the gradient on the boundary equal to n.grad(f) in the near wall cell. So if the gradient normal to the wall is equal to that in the adjacent cell then the "gradient of the gradient" is zero. Of course this is explicit and therefore lags the solution by an iteration.

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Old   June 23, 2011, 03:56
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Thank a lot Eugene !
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Old   June 25, 2011, 13:51
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Mohammad.R.Shetab
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Dear Eugene

You're right, and that's smart!!
But would you tell me please how would you implement that fixedGradient boundary condition?! I think you would write a new boundary condition and edit the codes in fxedGradient, or do you have any other way?

Thank you
Mohammadreza
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Old   June 27, 2011, 17:06
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Eugene de Villiers
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No you don't edit fixedGradient. You find another boundary that is derived from fixedGradient, copy it to another name and then edit it.
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Old   June 28, 2011, 07:28
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jawed mustafa
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Dear Eugene,
can you shed more light on its implementation

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Old   June 29, 2011, 04:05
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Eugene de Villiers
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Well, you calculate the gradient of the field in question and then for each face in your boundary find the the cell adjacent to it. You then set the gradient on the boundary equal to the surface normal component of the gradient in the near-wall cell. To make things more cost-effective, you probably want to calculate the gradient once per iteration and then store it in the database.

Attached should be an old version of such a boundary I made for use with boundaryFoam. Note it does not have any cost-reduction measures in place - you will have to figure these out yourself.
Attached Files
File Type: gz extrapolatedGradient.tar.gz (1.8 KB, 104 views)
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Old   June 29, 2011, 04:57
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Dear Eugene,
it seems to work thanks for the patch

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Old   July 3, 2011, 20:58
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Mohammad.R.Shetab
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Dear Eugene,

Would you please tell me how to compile your bc. I have both openFOAMs 1.5-dev & 1.7.1. In 1.5-dev it has an error finding "uniformDimensionedFields.H". It seems that there is no such file in OF-1.5-dev. But in 1.7.1 it would give another error that is:


Quote:
/usr/lib/gcc/i486-linux-gnu/4.4.3/../../../../lib/crt1.o: In function `_start':
(.text+0x18): undefined reference to `main'
Make/linuxGccSPOpt/nearWallDist.o: In function `Foam::nearWallDist::doAll()':
nearWallDist.C.text+0x19b): undefined reference to `Foam::cellDistFuncs::cellDistFuncs(FoamlyMesh const&)'
nearWallDist.C.text+0x1c9): undefined reference to `Foam::cellDistFuncs::maxPatchSize(Foam::HashSet<i nt, Foam::Hash<int> > const&) const'
nearWallDist.C.text+0x2f9): undefined reference to `Foam::cellDistFuncs::getPointNeighbours(Foam::Pri mitivePatch<Foam::face, Foam::SubList, Foam::Field<Foam::Vector<float> > const&, Foam::Vector<float> > const&, int, Foam::List<int>&) const'
nearWallDist.C.text+0x34a): undefined reference to `Foam::cellDistFuncs::smallestDist(Foam::Vector<fl oat> const&, FoamlyPatch const&, int, Foam::List<int> const&, int&) const'
Make/linuxGccSPOpt/wallDist.o: In function `Foam::wallDist::correct()':
wallDist..text+0x2ad): undefined reference to `Foam:atchWave:atchWave(FoamlyMesh const&, Foam::HashSet<int, Foam::Hash<int> > const&, bool)'
wallDist.C.text+0x58b): undefined reference to `Foam:atchWave::~patchWave()'
wallDist.C.text+0x640): undefined reference to `Foam:atchWave::~patchWave()'
Make/linuxGccSPOpt/wallDist.o: In function `Foam::wallDist::wallDist(Foam::fvMesh const&, bool)':
wallDist.C.text+0xeba): undefined reference to `Foam::cellDistFuncs::cellDistFuncs(FoamlyMesh const&)'
Make/linuxGccSPOpt/wallDist.o: In function `Foam::wallDist::wallDist(Foam::fvMesh const&, bool)':
wallDist.C.text+0x124a): undefined reference to `Foam::cellDistFuncs::cellDistFuncs(FoamlyMesh const&)'
Make/linuxGccSPOpt/wallDistReflection.o: In function `Foam::FaceCellWave<Foam::wallPointData<Foam::Vect or<float> > >::readFaces(int&, Foam::List<int>&, Foam::List<Foam::wallPointData<Foam::Vector<float> > >&, Foam::Istream&)':
wallDistReflection.C.text._ZN4Foam12FaceCellWaveIN S_13wallPointDataINS_6VectorIfEEEEE9readFacesERiRN S_4ListIiEERNS7_IS4_EERNS_7IstreamE[Foam::FaceCellWave<Foam::wallPointData<Foam::Vecto r<float> > >::readFaces(int&, Foam::List<int>&, Foam::List<Foam::wallPointData<Foam::Vector<float> > >&, Foam::Istream&)]+0x9e): undefined reference to `Foamerator>>(Foam::Istream&, Foam::wallPoint&)'
Make/linuxGccSPOpt/wallDistReflection.o: In function `Foam::FaceCellWave<Foam::wallPointData<Foam::Vect or<float> > >::writeFaces(int, Foam::List<int> const&,
.
.
.
.
.
`Foam::directMappedVelocityFluxFixedValueFvPatchFi eld::directMappedVelocityFluxFixedValueFvPatchFiel d(Foam::fvPatch const&, Foam:imensionedField<Foam::Vector<float>, Foam::volMesh> const&, Foam::dictionary const&)':
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x2bea): undefined reference to `typeinfo for Foam::directMappedPatchBase'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x2c15): undefined reference to `typeinfo for Foam::directMappedPolyPatch'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x2d40): undefined reference to `Foam::directMappedPatchBase::typeName'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x2e27): undefined reference to `Foam::directMappedPatchBase::calcMapping() const'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x3043): undefined reference to `Foam::directMappedPolyPatch::typeName'
directMappedVelocityFluxFixedValueFvPatchField.Cte xt+0x306b): undefined reference to `typeinfo for Foam::directMappedPolyPatch'
Make/linuxGccSPOpt/directMappedVelocityFluxFixedValueFvPatchField.o: In function `Foam::directMappedVelocityFluxFixedValueFvPatchFi eld::directMappedVelocityFluxFixedValueFvPatchFiel d(Foam::fvPatch const&, Foam:imensionedField<Foam::Vector<float>, Foam::volMesh> const&, Foam::dictionary const&)':
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x319a): undefined reference to `typeinfo for Foam::directMappedPatchBase'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x31c5): undefined reference to `typeinfo for Foam::directMappedPolyPatch'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x32f0): undefined reference to `Foam::directMappedPatchBase::typeName'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x33d7): undefined reference to `Foam::directMappedPatchBase::calcMapping() const'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x35f3): undefined reference to `Foam::directMappedPolyPatch::typeName'
directMappedVelocityFluxFixedValueFvPatchField.C.t ext+0x361b): undefined
timeVaryingMappedPressureDirectedInletVelocityFvPa tchVectorField.C.text._ZN4Foam39timeVaryingMappedF ixedValueFvPatchFieldINS_6VectorIfEEE16readSampleP ointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Vector<float> >::readSamplePoints()]+0x75d): undefined reference to `Foam::triSurface::write(Foam::fileName const&, bool) const'
timeVaryingMappedPressureDirectedInletVelocityFvPa tchVectorField.C.text._ZN4Foam39timeVaryingMappedF ixedValueFvPatchFieldINS_6VectorIfEEE16readSampleP ointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Vector<float> >::readSamplePoints()]+0xa1d): undefined reference to `Foam::triSurfaceTools::calcInterpolationWeights(F oam::triSurface const&, Foam::Field<Foam::Vector<float> > const&, Foam::List<Foam::FixedList<int, 3u> >&, Foam::List<Foam::FixedList<float, 3u> >&)'
timeVaryingMappedPressureDirectedInletVelocityFvPa tchVectorField.C.text._ZN4Foam39timeVaryingMappedF ixedValueFvPatchFieldINS_6VectorIfEEE16readSampleP ointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Vector<float> >::readSamplePoints()]+0xc12): undefined reference to `Foam::triSurface::~triSurface()'
timeVaryingMappedPressureDirectedInletVelocityFvPa tchVectorField.C.text._ZN4Foam39timeVaryingMappedF ixedValueFvPatchFieldINS_6VectorIfEEE16readSampleP ointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Vector<float> >::readSamplePoints()]+0x15a9): undefined reference to `Foam::triSurface::~triSurface()'
Make/linuxGccSPOpt/timeVaryingMappedFixedValueFvPatchFields.o: In function `Foam::timeVaryingMappedFixedValueFvPatchField<flo at>::readSamplePoints()':
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0x4e9): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::wo rd const&, Foam::Vector<float> const&, Foam::Vector<float> const&, Foam::Vector<float> const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0x5f9): undefined reference to `Foam::triSurfaceTools::delaunay2D(Foam::List<Foam ::Vector2D<float> > const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0x725): undefined reference to `Foam::triSurface::write(Foam::fileName const&, bool) const'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0x9e5): undefined reference to `Foam::triSurfaceTools::calcInterpolationWeights(F oam::triSurface const&, Foam::Field<Foam::Vector<float> > const&, Foam::List<Foam::FixedList<int, 3u> >&, Foam::List<Foam::FixedList<float, 3u> >&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0xbcb): undefined reference to `Foam::triSurface::~triSurface()'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldIfE 16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<floa t>::readSamplePoints()]+0x156c): undefined reference to `Foam::triSurface::~triSurface()'
Make/linuxGccSPOpt/timeVaryingMappedFixedValueFvPatchFields.o: In function `Foam::timeVaryingMappedFixedValueFvPatchField<Foa m::Tensor<float> >::readSamplePoints()':
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0x4e9): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::wo rd const&, Foam::Vector<float> const&, Foam::Vector<float> const&, Foam::Vector<float> const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0x5f9): undefined reference to `Foam::triSurfaceTools::delaunay2D(Foam::List<Foam ::Vector2D<float> > const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0x725): undefined reference to `Foam::triSurface::write(Foam::fileName const&, bool) const'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0x9e5): undefined reference to `Foam::triSurfaceTools::calcInterpolationWeights(F oam::triSurface const&, Foam::Field<Foam::Vector<float> > const&, Foam::List<Foam::FixedList<int, 3u> >&, Foam::List<Foam::FixedList<float, 3u> >&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0xbcb): undefined reference to `Foam::triSurface::~triSurface()'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _6TensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::Tensor<float> >::readSamplePoints()]+0x156c): undefined reference to `Foam::triSurface::~triSurface()'
Make/linuxGccSPOpt/timeVaryingMappedFixedValueFvPatchFields.o: In function `Foam::timeVaryingMappedFixedValueFvPatchField<Foa m::SphericalTensor<float> >::readSamplePoints()':
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0x4e9): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::wo rd const&, Foam::Vector<float> const&, Foam::Vector<float> const&, Foam::Vector<float> const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0x5f9): undefined reference to `Foam::triSurfaceTools::delaunay2D(Foam::List<Foam ::Vector2D<float> > const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0x725): undefined reference to `Foam::triSurface::write(Foam::fileName const&, bool) const'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0x9e5): undefined reference to `Foam::triSurfaceTools::calcInterpolationWeights(F oam::triSurface const&, Foam::Field<Foam::Vector<float> > const&, Foam::List<Foam::FixedList<int, 3u> >&, Foam::List<Foam::FixedList<float, 3u> >&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0xbcb): undefined reference to `Foam::triSurface::~triSurface()'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _15SphericalTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SphericalTensor<float> >::readSamplePoints()]+0x156c): undefined reference to `Foam::triSurface::~triSurface()'
Make/linuxGccSPOpt/timeVaryingMappedFixedValueFvPatchFields.o: In function `Foam::timeVaryingMappedFixedValueFvPatchField<Foa m::SymmTensor<float> >::readSamplePoints()':
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0x4e9): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::wo rd const&, Foam::Vector<float> const&, Foam::Vector<float> const&, Foam::Vector<float> const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0x5f9): undefined reference to `Foam::triSurfaceTools::delaunay2D(Foam::List<Foam ::Vector2D<float> > const&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0x725): undefined reference to `Foam::triSurface::write(Foam::fileName const&, bool) const'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0x9e5): undefined reference to `Foam::triSurfaceTools::calcInterpolationWeights(F oam::triSurface const&, Foam::Field<Foam::Vector<float> > const&, Foam::List<Foam::FixedList<int, 3u> >&, Foam::List<Foam::FixedList<float, 3u> >&)'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0xbcb): undefined reference to `Foam::triSurface::~triSurface()'
timeVaryingMappedFixedValueFvPatchFields.C.text._Z N4Foam39timeVaryingMappedFixedValueFvPatchFieldINS _10SymmTensorIfEEE16readSamplePointsEv[Foam::timeVaryingMappedFixedValueFvPatchField<Foam ::SymmTensor<float> >::readSamplePoints()]+0x156c): undefined reference to `Foam::triSurface::~triSurface()'
Make/linuxGccSPOpt/porousZone.o: In function `FoamrousZone::writeDict(Foam::Ostream&, bool) const':
porousZone.C.text+0x1224): undefined reference to `Foam::coordinateSystem::writeDict(Foam::Ostream&, bool) const'
Make/linuxGccSPOpt/porousZone.o: In function `FoamrousZonerousZone(Foam::word const&, Foam::fvMesh const&, Foam::dictionary const&)':
porousZone.C.text+0x1813): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::di ctionary const&, Foam:bjectRegistry const&)'
porousZone.C.text+0x2b84): undefined reference to `Foam::coordinateSystem::~coordinateSystem()'
Make/linuxGccSPOpt/porousZone.o: In function `FoamrousZonerousZone(Foam::word const&, Foam::fvMesh const&, Foam::dictionary const&)':
porousZone.C.text+0x2df3): undefined reference to `Foam::coordinateSystem::coordinateSystem(Foam::di ctionary const&, Foam:bjectRegistry const&)'
porousZone.C.text+0x4103): undefined reference to `Foam::coordinateSystem::~coordinateSystem()'
Make/linuxGccSPOpt/porousZone.o: In function `FoamrousZone::~porousZone()':
porousZone.C.text._ZN4Foam10porousZoneD1Ev[FoamousZone::~porousZone()]+0x4f): undefined reference to `Foam::coordinateSystem::~coordinateSystem()'
Make/linuxGccSPOpt/porousZone.o: In function `FoamrousZone::~porousZone()':
porousZone.C.text._ZN4Foam10porousZoneD0Ev[FoamrousZone::~porousZone()]+0x53): undefined reference to `Foam::coordinateSystem::~coordinateSystem()'
Make/linuxGccSPOpt/MRFZone.o: In function `Foam::MRFZone::setMRFFaces()':
MRFZone.C.text+0x194a): undefined reference to `Foam::faceSet::faceSet(FoamlyMesh const&, Foam::word const&, Foam::HashSet<int, Foam::Hash<int> > const&, Foam::IOobject::writeOption)'
MRFZone.C.text+0x1a98): undefined reference to `Foam::faceSet::faceSet(FoamlyMesh const&, Foam::word const&, int, Foam::IOobject::writeOption)'
MRFZone.C.text+0x1f67): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x1f75): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x1f83): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x21d4): undefined reference to `Foam::faceSet::faceSet(FoamlyMesh const&, Foam::word const&, int, Foam::IOobject::writeOption)'
MRFZone.C.text+0x26b9): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x2720): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x2766): undefined reference to `Foam::faceSet::~faceSet()'
MRFZone.C.text+0x27aa): undefined reference to `Foam::faceSet::~faceSet()'
Make/linuxGccSPOpt/pressureGradientExplicitSource.o: In function `Foam:ressureGradientExplicitSource:ressureGradien tExplicitSource(Foam::word const&, Foam::GeometricField<Foam::Vector<float>, Foam::fvPatchField, Foam::volMesh>&)':
pressureGradientExplicitSource.C.text+0x559): undefined reference to `Foam::topoSetSource::New(Foam::word const&, Foam:olyMesh const&, Foam::dictionary const&)'
pressureGradientExplicitSource.C.text+0x61c): undefined reference to `Foam::cellSet::cellSet(FoamlyMesh const&, Foam::word const&, int, Foam::IOobject::writeOption)'
pressureGradientExplicitSource.C.text+0xe87): undefined reference to `Foam::cellSet::~cellSet()'
Make/linuxGccSPOpt/pressureGradientExplicitSource.o: In function `Foam:ressureGradientExplicitSource:ressureGradien tExplicitSource(Foam::word const&, Foam::GeometricField<Foam::Vector<float>, Foam::fvPatchField, Foam::volMesh>&)':
pressureGradientExplicitSource.C.text+0x1759): undefined reference to `Foam::topoSetSource::New(Foam::word const&, FoamlyMesh const&, Foam::dictionary const&)'
pressureGradientExplicitSource.C.text+0x181c): undefined reference to `Foam::cellSet::cellSet(FoamlyMesh const&, Foam::word const&, int, Foam::IOobject::writeOption)'
pressureGradientExplicitSource.C.text+0x2087): undefined reference to `Foam::cellSet::~cellSet()'
Make/linuxGccSPOpt/basicSource.o: In function `Foam::basicSource::setCellSet()':
basicSource.C.text+0x1430): undefined reference to `Foam::cellSet::cellSet(FoamlyMesh const&, Foam::word const&, Foam::IOobject::readOption, Foam::IOobject::writeOption)'
basicSource.C.text+0x147d): undefined reference to `Foam::cellSet::~cellSet()'
basicSource.C.text+0x164c): undefined reference to `Foam::cellSet::~cellSet()'
collect2: ld returned 1 exit status
make: *** [OpenFOAM.out] Error 1
I just copy the extrapolatedGradient folder in the path :

/home/mrshb4/OpenFOAM/OpenFOAM-1.7.1/src/finiteVolume/fields/fvPatchFields/basic/extrapolatedGradient

could you please tell me how can I compile that?!!

Thanks
Mohammadreza
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Old   December 23, 2013, 08:17
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Did you get through these errors,although it is too late to ask this from you.I got similar type of errors.Il put them below.Please see whether you can help me.Im stucked at this point for some days.

thamali@thamali-VirtualBox:~/OpenFOAM/thamali-2.2.2/applications/solvers/my_fireFoam11$ Make/linuxGccDPOpt/my_fireFoam.o: In function `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::New(Foam::fvMesh const&, Foam::Istream&)':
my_fireFoam.C.text._ZN4Foam2fv15laplacianSchemeI dNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE[Foam::fv::laplacianScheme<double, Foam::Vector<double> >::New(Foam::fvMesh const&, Foam::Istream&)]+0x53): undefined reference to `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::IstreamConstructorTablePtr_'
my_fireFoam.C.text._ZN4Foam2fv15laplacianSchemeI dNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE[Foam::fv::laplacianScheme<double, Foam::Vector<double> >::New(Foam::fvMesh const&, Foam::Istream&)]+0x1a5): undefined reference to `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::IstreamConstructorTablePtr_'
my_fireFoam.C.text._ZN4Foam2fv15laplacianSchemeI dNS_6VectorIdEEE3NewERKNS_6fvMeshERNS_7IstreamE[Foam::fv::laplacianScheme<double, Foam::Vector<double> >::New(Foam::fvMesh const&, Foam::Istream&)]+0x1d5): undefined reference to `Foam::fv::laplacianScheme<double, Foam::Vector<double> >::IstreamConstructorTablePtr_'
collect2: ld returned 1 exit status
make: *** [/home/thamali/OpenFOAM/thamali-2.2.2/platforms/linuxGccDPOpt/bin/my_fireFoam] Error 1
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Old   May 1, 2014, 16:26
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Quote:
Originally Posted by eugene View Post
Attached should be an old version of such a boundary I made for use with boundaryFoam. Note it does not have any cost-reduction measures in place - you will have to figure these out yourself.
Would it be possible to edit this patch type to include vectors as well? Thanks for any advice or info.
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