gaussGreenDiv.hpp

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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2024 NeoFOAM authors
 
#pragma once
 
#include "NeoFOAM/fields/field.hpp"
#include "NeoFOAM/core/executor/executor.hpp"
#include "NeoFOAM/mesh/unstructured.hpp"
#include "NeoFOAM/finiteVolume/cellCentred/operators/divOperator.hpp"
#include "NeoFOAM/finiteVolume/cellCentred/interpolation/surfaceInterpolation.hpp"
 
namespace NeoFOAM::finiteVolume::cellCentred
{
 
class GaussGreenDiv : public DivOperatorFactory::Register<GaussGreenDiv>
{
public:
 
    static std::string name() { return "Gauss"; }
 
    static std::string doc() { return "Gauss-Green Divergence"; }
 
    static std::string schema() { return "none"; }
 
    GaussGreenDiv(const Executor& exec, const UnstructuredMesh& mesh, const Input& inputs);
 
    void
    div(VolumeField<scalar>& divPhi, const SurfaceField<scalar>& faceFlux, VolumeField<scalar>& phi
    ) override;
 
    void
    div(Field<scalar>& divPhi, const SurfaceField<scalar>& faceFlux, VolumeField<scalar>& phi
    ) override;
 
    VolumeField<scalar>
    div(const SurfaceField<scalar>& faceFlux, VolumeField<scalar>& phi) override;
 
    std::unique_ptr<DivOperatorFactory> clone() const override;
 
private:
 
    SurfaceInterpolation surfaceInterpolation_;
};
 
} // namespace NeoFOAM