CardiacElectroMechProbRegularGeom.hpp

/*

Copyright (C) University of Oxford, 2005-2011

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This file is part of Chaste.

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being under the jurisdiction of the English Courts.

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*/

#ifndef CARDIACELECTROMECHPROBREGULARGEOM_HPP_
#define CARDIACELECTROMECHPROBREGULARGEOM_HPP_

#include "CardiacElectroMechanicsProblem.hpp"

template<unsigned DIM>
class CardiacElectroMechProbRegularGeom : public CardiacElectroMechanicsProblem<DIM>
{
public:

    CardiacElectroMechProbRegularGeom(CompressibilityType compressibilityType,
                                      double width,
                                      unsigned numMechanicsElementsEachDir,
                                      unsigned numElectricsElementsEachDir,
                                      AbstractCardiacCellFactory<DIM>* pCellFactory,
                                      ContractionModelName contractionModel,
                                      double mechanicsSolveTimestep,
                                      double contractionModelOdeTimeStep,
                                      std::string outputDirectory = "")
        : CardiacElectroMechanicsProblem<DIM>(compressibilityType,
                                              NULL, NULL,
                                              pCellFactory,
                                              NULL,
                                              outputDirectory)
    {
        assert(DIM==2); // the below assumes DIM==2

        assert(width > 0.0);
        assert(numMechanicsElementsEachDir > 0);
        assert(numElectricsElementsEachDir > 0);

        // create electrics mesh
        this->mpElectricsMesh = new TetrahedralMesh<DIM,DIM>();

        this->mpElectricsMesh->ConstructRegularSlabMesh(width/numElectricsElementsEachDir, width, width);

        // create mechanics mesh
        this->mpMechanicsMesh = new QuadraticMesh<DIM>(width/numMechanicsElementsEachDir, width, width);
        LOG(2, "Width of meshes is " << width);
        LOG(2, "Num nodes in electrical and mechanical meshes are: " << this->mpElectricsMesh->GetNumNodes() << ", " << this->mpMechanicsMesh->GetNumNodes() << "\n");

        this->mpProblemDefinition = new ElectroMechanicsProblemDefinition<DIM>(*(this->mpMechanicsMesh));

        // fix the nodes on x=0
        std::vector<unsigned> fixed_nodes;
        for(unsigned i=0; i<this->mpMechanicsMesh->GetNumNodes(); i++)
        {
            if( fabs(this->mpMechanicsMesh->GetNode(i)->rGetLocation()[0])<1e-6)
            {
                fixed_nodes.push_back(i);
            }
        }
        this->mpProblemDefinition->SetZeroDisplacementNodes(fixed_nodes);

        LOG(2, "Fixed the " << fixed_nodes.size() << " nodes on x=0");

        this->mpProblemDefinition->SetUseDefaultCardiacMaterialLaw(compressibilityType);
        this->mpProblemDefinition->SetContractionModel(contractionModel,contractionModelOdeTimeStep);
        this->mpProblemDefinition->SetMechanicsSolveTimestep(mechanicsSolveTimestep);
    }

    ~CardiacElectroMechProbRegularGeom()
    {
        delete this->mpElectricsMesh;
        delete this->mpMechanicsMesh;
        delete this->mpProblemDefinition;
    }
};

#endif /*CARDIACELECTROMECHPROBREGULARGEOM_HPP_*/