qs_convection_diffusion_explicit.h

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//    |  /           |
//    ' /   __| _` | __|  _ \   __|
//    . \  |   (   | |   (   |\__ `
//   _|\_\_|  \__,_|\__|\___/ ____/
//                   Multi-Physics
//
//  License:         BSD License
//                   Kratos default license: kratos/license.txt
//
//  Main author:     Riccardo Tosi
//
 
#ifndef KRATOS_QS_CONVECTION_DIFFUSION_EXPLICIT_H
#define KRATOS_QS_CONVECTION_DIFFUSION_EXPLICIT_H
 
// System includes
 
 
// External includes
 
 
// Project includes
#include "includes/element.h"
#include "includes/serializer.h"
#include "includes/checks.h"
#include "includes/variables.h"
#include "includes/convection_diffusion_settings.h"
#include "geometries/geometry.h"
#include "utilities/geometry_utilities.h"
#include "includes/cfd_variables.h"
#include "convection_diffusion_application_variables.h"
 
namespace Kratos
{
 
 
 
 
 
 
template< unsigned int TDim, unsigned int TNumNodes>
class QSConvectionDiffusionExplicit : public Element
{
public:
 
        typedef Element BaseType;
        typedef Node NodeType;
        typedef Geometry<NodeType> GeometryType;
 
    KRATOS_CLASS_INTRUSIVE_POINTER_DEFINITION(QSConvectionDiffusionExplicit);
 
 
    //Constructors.
    QSConvectionDiffusionExplicit(
        IndexType NewId,
        GeometryType::Pointer pGeometry);
 
    QSConvectionDiffusionExplicit(
        IndexType NewId,
        GeometryType::Pointer pGeometry,
        Properties::Pointer pProperties);
 
 
    virtual ~QSConvectionDiffusionExplicit();
 
 
 
 
    Element::Pointer Create(
        IndexType NewId,
        NodesArrayType const& ThisNodes,
        Properties::Pointer pProperties) const override;
 
    Element::Pointer Create(
        IndexType NewId,
        GeometryType::Pointer pGeom,
        Properties::Pointer pProperties) const override;
 
    void CalculateLocalSystem(
        MatrixType& rLeftHandSideMatrix,
        VectorType& rRightHandSideVector,
        const ProcessInfo& rCurrentProcessInfo) override;
 
    void CalculateRightHandSide(
        VectorType& rRightHandSideVector,
        const ProcessInfo& rCurrentProcessInfo) override;
 
    void EquationIdVector(
        EquationIdVectorType& rResult,
        const ProcessInfo& rCurrentProcessInfo) const override;
 
    void GetDofList(
        DofsVectorType& rElementalDofList,
        const ProcessInfo& rCurrentProcessInfo) const override;
 
    void AddExplicitContribution(const ProcessInfo &rCurrentProcessInfo) override;
 
    void CalculateMassMatrix(
        MatrixType &rMassMatrix,
        const ProcessInfo &rCurrentProcessInfo) override;
 
    void CalculateLumpedMassVector(
        VectorType& rLumpedMassVector,
        const ProcessInfo& rCurrentProcessInfo
        ) const override;
 
    void Calculate(
        const Variable<double>& rVariable,
        double& Output,
        const ProcessInfo& rCurrentProcessInfo) override;
 
 
 
    std::string Info() const override
    {
        return "QSConvectionDiffusionExplicitElement #";
    }
 
    void PrintInfo(std::ostream& rOStream) const override
    {
        rOStream << Info() << Id();
    }
 
 
protected:
 
 
    struct ElementData
    {
        // scalars
        double diffusivity;
        double lumping_factor;
        double weight;
        double delta_time;
        double explicit_step_coefficient;
        double dynamic_tau;
        double unknown_subscale;
        double volume;
        // arrays
        array_1d<double,TNumNodes> tau;
        array_1d<double,TNumNodes> forcing;
        array_1d<double,TNumNodes> unknown;
        array_1d<double,TNumNodes> unknown_old;
        array_1d<double,TNumNodes> oss_projection;
        // matrices
        BoundedMatrix<double,TNumNodes,3> convective_velocity;
        // auxiliary containers for the symbolically-generated matrices
        BoundedMatrix<double,TNumNodes,TNumNodes> lhs;
        array_1d<double,TNumNodes> rhs;
        // auxiliary containers for the symbolically-generated data for Gauss integration
        array_1d<double,TNumNodes> N;
        BoundedMatrix<double,TNumNodes,TNumNodes> N_gausspoint;
        BoundedMatrix<double,TNumNodes,TDim> DN_DX;
    };
 
 
 
 
    void InitializeEulerianElement(
        ElementData& rData,
        const ProcessInfo& rCurrentProcessInfo);
 
    double ComputeH(BoundedMatrix<double,TNumNodes,TDim>& rDN_DX);
 
 
 
 
    IntegrationMethod GetIntegrationMethod() const override;
 
 
    // Protected default constructor necessary for serialization
    QSConvectionDiffusionExplicit() : Element()
    {
    }
 
 
private:
 
 
 
 
    friend class Serializer;
 
    void save(Serializer& rSerializer) const override
    {
        KRATOS_SERIALIZE_SAVE_BASE_CLASS(rSerializer, Element);
    }
 
    void load(Serializer& rSerializer) override
    {
        KRATOS_SERIALIZE_LOAD_BASE_CLASS(rSerializer, Element);
    }
 
 
    QSConvectionDiffusionExplicit& operator=(QSConvectionDiffusionExplicit const& rOther) = delete;
 
    QSConvectionDiffusionExplicit(QSConvectionDiffusionExplicit const& rOther) = delete;
 
 
    void QSCalculateRightHandSideInternal(
        BoundedVector<double, TNumNodes>& rRightHandSideBoundedVector,
        const ProcessInfo& rCurrentProcessInfo);
 
    void QSCalculateOrthogonalSubgridScaleRHSInternal(
        BoundedVector<double, TNumNodes>& rRightHandSideVector,
        const ProcessInfo& rCurrentProcessInfo);
 
    void QSCalculateTau(ElementData& rData);
 
 
 
 
 
}; // Class QSConvectionDiffusionExplicit
 
 
 
 
 
 
template< unsigned int TDim, unsigned int TNumNodes = TDim + 1>
inline std::istream& operator >>(
    std::istream& rIStream,
    QSConvectionDiffusionExplicit<TDim,TNumNodes>& rThis)
{
    return rIStream;
}
 
template< unsigned int TDim, unsigned int TNumNodes = TDim + 1>
inline std::ostream& operator <<(
    std::ostream& rOStream,
    const QSConvectionDiffusionExplicit<TDim,TNumNodes>& rThis)
{
    rThis.PrintInfo(rOStream);
    rOStream << std::endl;
    rThis.PrintData(rOStream);
 
    return rOStream;
}
 
 
} // namespace Kratos.
 
#endif // KRATOS_QS_CONVECTION_DIFFUSION_EXPLICIT_H