upwind.hpp

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// SPDX-License-Identifier: MIT
// SPDX-FileCopyrightText: 2023 NeoFOAM authors
 
#pragma once
 
#include "NeoFOAM/fields/field.hpp"
#include "NeoFOAM/core/executor/executor.hpp"
#include "NeoFOAM/finiteVolume/cellCentred/interpolation/surfaceInterpolation.hpp"
#include "NeoFOAM/mesh/unstructured.hpp"
#include "NeoFOAM/finiteVolume/cellCentred/stencil/geometryScheme.hpp"
 
#include <Kokkos_Core.hpp>
 
#include <functional>
 
namespace NeoFOAM::finiteVolume::cellCentred
{
 
class Upwind : public SurfaceInterpolationFactory::Register<Upwind>
{
 
public:
 
    Upwind(const Executor& exec, const UnstructuredMesh& mesh, Input input);
 
    static std::string name() { return "upwind"; }
 
    static std::string doc() { return "upwind interpolation"; }
 
    static std::string schema() { return "none"; }
 
    void interpolate(const VolumeField<scalar>& volField, SurfaceField<scalar>& surfaceField)
        const override;
 
    void interpolate(
        const SurfaceField<scalar>& faceFlux,
        const VolumeField<scalar>& volField,
        SurfaceField<scalar>& surfaceField
    ) const override;
 
    std::unique_ptr<SurfaceInterpolationFactory> clone() const override;
 
private:
 
    const std::shared_ptr<GeometryScheme> geometryScheme_;
};
 
} // namespace NeoFOAM