history_force_law.h

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// Author: Guillermo Casas (gcasas@cimne.upc.edu)
// Date: February 2019
 
#if !defined(SDEM_HISTORY_FORCE_LAW_H_INCLUDED)
#define SDEM_HISTORY_FORCE_LAW_H_INCLUDED
 
#include <string>
#include <iostream>
#include "includes/define.h"
#include "includes/serializer.h"
#include "includes/model_part.h"
#include "containers/flags.h"
 
namespace Kratos {
 
    class KRATOS_API(SWIMMING_DEM_APPLICATION) HistoryForceLaw : public Flags {
 
    public:
        typedef Node NodeType;
        KRATOS_CLASS_POINTER_DEFINITION(HistoryForceLaw);
 
        HistoryForceLaw(): mLastHistoryForceAddedMass(0.0){}
 
        HistoryForceLaw(Parameters r_parameters): mLastHistoryForceAddedMass(0.0){}
 
        ~HistoryForceLaw(){}
 
        virtual HistoryForceLaw::Pointer Clone() const;
 
        virtual void Initialize(const ProcessInfo& r_process_info);
 
        void SetHistoryForceLawInProperties(Properties::Pointer pProp) const;
 
        virtual std::string GetTypeOfLaw();
 
        virtual void ComputeForce(Geometry<Node >& r_geometry,
                                  const double reynolds_number,
                                  double particle_radius,
                                  double fluid_density,
                                  double fluid_kinematic_viscosity,
                                  array_1d<double, 3>& minus_slip_velocity,
                                  array_1d<double, 3>& history_force,
                                  const ProcessInfo& r_current_process_info){}
 
        virtual double GetAddedMass(Geometry<Node >& r_geometry,
                                    const ProcessInfo& r_current_process_info){return mLastHistoryForceAddedMass;}
 
    protected:
 
        double mLastHistoryForceAddedMass;
 
    private:
 
        friend class Serializer;
 
        virtual void save(Serializer& rSerializer) const override {
            KRATOS_SERIALIZE_SAVE_BASE_CLASS(rSerializer, Flags)
        }
 
        virtual void load(Serializer& rSerializer) override {
            KRATOS_SERIALIZE_LOAD_BASE_CLASS(rSerializer, Flags)
        }
 
    }; //class HistoryForceLaw
 
KRATOS_DEFINE_APPLICATION_VARIABLE(SWIMMING_DEM_APPLICATION, HistoryForceLaw::Pointer, SDEM_HISTORY_FORCE_LAW_POINTER)
 
} // Namespace Kratos
 
#endif /* SDEM_HISTORY_FORCE_LAW_H_INCLUDED  defined */