gaussGreenGrad.hpp

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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2023 NeoFOAM authors
 
#pragma once
 
#include "NeoFOAM/core/executor/executor.hpp"
#include "NeoFOAM/mesh/unstructured.hpp"
#include "NeoFOAM/finiteVolume/cellCentred/interpolation/surfaceInterpolation.hpp"
 
namespace NeoFOAM::finiteVolume::cellCentred
{
 
class GaussGreenGrad
{
public:
 
    GaussGreenGrad(const Executor& exec, const UnstructuredMesh& mesh);
 
    // fvcc::VolumeField<Vector> grad(const fvcc::VolumeField<scalar>& phi);
 
    void grad(const VolumeField<scalar>& phi, VolumeField<Vector>& gradPhi);
 
    VolumeField<Vector> grad(const VolumeField<scalar>& phi);
 
private:
 
    const UnstructuredMesh& mesh_;
    SurfaceInterpolation surfaceInterpolation_;
};
 
} // namespace NeoFOAM