stationarity_check.h

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//    |  /           |
//    ' /   __| _` | __|  _ \   __|
//    . \  |   (   | |   (   |\__ `
//   _|\_\_|  \__,_|\__|\___/ ____/
//                   Multi-Physics
//
//  License:         BSD License
//                   Kratos default license: kratos/license.txt
//
//  Main authors:    Guillermo Casas
//
 
#if !defined( KRATOS_SWIMMING_DEM_FLOW_STATIONARITY_CHECK )
#define  KRATOS_SWIMMING_DEM_FLOW_STATIONARITY_CHECK
 
// System includes
 
// External includes
 
// Project includes
#include "includes/model_part.h"
#include "includes/define.h"
 
namespace Kratos {
 
class KRATOS_API(SWIMMING_DEM_APPLICATION) FlowStationarityCheck
{
  public:
 
    KRATOS_CLASS_POINTER_DEFINITION(FlowStationarityCheck);
 
 
    FlowStationarityCheck(ModelPart& rFluidModelPart, const double tolerance)
        : mrModelPart(rFluidModelPart),
          mAveragingStep(0),
          mTolerance(tolerance),
          mCharacteristicPressureRate(1.0),
          mCurrentPressureRate(2.0){}
 
    FlowStationarityCheck(FlowStationarityCheck const& rOther) = delete;
 
    virtual ~FlowStationarityCheck() = default;
 
 
    FlowStationarityCheck &operator=(FlowStationarityCheck const& rOther) = delete;
 
 
    bool AssessStationarity();
    double GetCharacteristicPressureDerivative();
    double GetCurrentPressureDerivative();
    double GetTolerance();
    double GetTransienceMeasure();
 
 
    virtual std::string Info() const
    {
        std::stringstream buffer;
        buffer << "FlowStationarityCheck";
        return buffer.str();
    }
 
    virtual void PrintInfo(std::ostream& rOStream) const
    {
        rOStream << "FlowStationarityCheck";
    }
 
    virtual void PrintData(std::ostream& rOStream) const {}
 
 
  protected:
 
  private:
 
    ModelPart& mrModelPart; 
    int mAveragingStep;
    double mTolerance;
    double mCharacteristicPressureRate;
    double mCurrentPressureRate;
 
 
 
}; // Class FlowStationarityCheck
 
 
inline std::istream &operator>>(std::istream& rIStream,
                                FlowStationarityCheck& rThis)
{
    return rIStream;
}
 
inline std::ostream &operator<<(std::ostream& rOStream,
                                const FlowStationarityCheck& rThis)
{
    rThis.PrintInfo(rOStream);
    rOStream << std::endl;
    rThis.PrintData(rOStream);
 
    return rOStream;
}
}  // namespace Kratos.
 
#endif // KRATOS_SWIMMING_DEM_FLOW_STATIONARITY_CHECK  defined