VentilationProblem.hpp

/*

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*/

#ifndef VENTILATIONPROBLEM_HPP_
#define VENTILATIONPROBLEM_HPP_

#include <map>
#include "TetrahedralMesh.hpp"
#include "LinearSystem.hpp"
#include "TimeStepper.hpp"
#include "VtkMeshWriter.hpp"
#include "Swan2012AcinarUnit.hpp"

class VentilationProblem
{
private:
    TetrahedralMesh<1,3> mMesh; 
    unsigned mOutletNodeIndex; 
    bool mDynamicResistance; 
    bool mRadiusOnEdge; 
    double mViscosity;

    double mDensity;

    std::map<unsigned, Swan2012AcinarUnit*> mAcinarUnits; 
    std::vector<double> mFlux; 
    std::vector<double> mPressure; 
    std::map<unsigned, double> mPressureCondition; 
    bool mFluxGivenAtInflow; 
    Mat mTerminalInteractionMatrix;
    std::map<unsigned, unsigned> mTerminalToNodeIndex; 
    std::map<unsigned, unsigned> mTerminalToEdgeIndex; 
    Vec mTerminalFluxChangeVector; 
    Vec mTerminalPressureChangeVector; 
    KSP mTerminalKspSolver; 
    void SolveDirectFromFlux();


    void SetupIterativeSolver();
    void SolveIterativelyFromPressure();

    double CalculateResistance(Element<1,3>& rElement, bool usePedley=false, double flux=DBL_MAX);


public:
    VentilationProblem();

    VentilationProblem(const std::string& rMeshDirFilePath, unsigned rootIndex=0u);
    ~VentilationProblem();

    void SetOutflowPressure(double pressure);

    void SetConstantInflowPressures(double pressure);

    void SetConstantInflowFluxes(double flux);


    void SetPressureAtBoundaryNode(const Node<3>& rNode, double pressure);

    double GetPressureAtBoundaryNode(const Node<3>& rNode);

    double GetFluxAtOutflow();
    void SetFluxAtBoundaryNode(const Node<3>& rNode, double flux);

    void Solve();


    void GetSolutionAsFluxesAndPressures(std::vector<double>& rFluxesOnEdges, std::vector<double>& rPressuresOnNodes);

#ifdef CHASTE_VTK

    void AddDataToVtk(VtkMeshWriter<1, 3>& rVtkWriter, const std::string& rSuffix);

    void WriteVtk(const std::string& rDirName, const std::string& rFileBaseName);

#endif // CHASTE_VTK

    void SetRadiusOnEdge(bool isOnEdges=true);

    TetrahedralMesh<1,3>& rGetMesh();

    void Solve(TimeStepper& rTimeStepper, void (*pBoundaryConditionFunction)(VentilationProblem*, TimeStepper& rTimeStepper, const Node<3>&), const std::string& rDirName, const std::string& rFileBaseName);

    void SolveProblemFromFile(const std::string& rInFilePath, const std::string& rOutFileDir,const std::string& rOutFileName);

    double GetViscosity() const
    {
        return mViscosity;
    }

    void SetViscosity(double viscosity)
    {
        mViscosity = viscosity;
    }

    double GetDensity() const
    {
        return mDensity;
    }

    void SetDensity(double density)
    {
        mDensity = density;
    }

    void SetDynamicResistance(bool dynamicResistance = true)
    {
        mDynamicResistance = dynamicResistance;
    }

    Swan2012AcinarUnit* GetAcinus(const Node<3>& rNode)
    {
        assert(mAcinarUnits.count(rNode.GetIndex()));
        return mAcinarUnits[rNode.GetIndex()];
    }

};

#endif /* VENTILATIONPROBLEM_HPP_ */