explicit.hpp

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// SPDX-FileCopyrightText: 2023 - 2026 NeoN authors
//
// SPDX-License-Identifier: MIT
 
#pragma once
 
#include "NeoN/core/primitives/scalar.hpp"
#include "NeoN/core/primitives/vec3.hpp"
#include "NeoN/dsl/spatialOperator.hpp"
#include "NeoN/dsl/temporalOperator.hpp"
#include "NeoN/dsl/ddt.hpp"
#include "NeoN/finiteVolume/cellCentred/fields/surfaceField.hpp"
// TODO: decouple from fvcc
#include "NeoN/finiteVolume/cellCentred/fields/volumeField.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/ddtOperator.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/divOperator.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/laplacianOperator.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/sourceTerm.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/gradOperator.hpp"
#include "NeoN/finiteVolume/cellCentred/operators/surfaceIntegrate.hpp"
 
namespace NeoN::dsl::exp
{
 
namespace fvcc = NeoN::finiteVolume::cellCentred;
 
template<typename ValueType>
TemporalOperator<ValueType> ddt(fvcc::VolumeField<ValueType>& phi)
{
    return fvcc::DdtOperator(dsl::Operator::Type::Explicit, phi);
}
 
template<typename ValueType>
SpatialOperator<ValueType>
source(const fvcc::VolumeField<scalar>& coeff, const fvcc::VolumeField<ValueType>& phi)
{
    return SpatialOperator<ValueType>(fvcc::SourceTerm(dsl::Operator::Type::Explicit, coeff, phi));
}
 
template<typename ValueType>
SpatialOperator<ValueType>
div(const fvcc::SurfaceField<scalar>& faceFlux, const fvcc::VolumeField<ValueType>& phi)
{
    return SpatialOperator<ValueType>(
        fvcc::DivOperator(dsl::Operator::Type::Explicit, faceFlux, phi)
    );
}
 
SpatialOperator<scalar> div(const fvcc::SurfaceField<scalar>& flux);
 
template<typename ValueType>
SpatialOperator<ValueType>
laplacian(const fvcc::SurfaceField<scalar>& gamma, fvcc::VolumeField<ValueType>& phi)
{
    return SpatialOperator<ValueType>(
        fvcc::LaplacianOperator<ValueType>(dsl::Operator::Type::Explicit, gamma, phi)
    );
}
 
SpatialOperator<Vec3> grad(const fvcc::VolumeField<scalar>& phi);
 
template<typename ValueType>
SpatialOperator<ValueType> source(fvcc::VolumeField<ValueType>& coeff)
{
    return SpatialOperator<ValueType>(fvcc::SourceTerm(dsl::Operator::Type::Explicit, coeff));
}
 
} // namespace NeoN