StokesFlowProblemDefinition.hpp

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*/
 
#ifndef STOKESFLOWPROBLEMDEFINITION_HPP_
#define STOKESFLOWPROBLEMDEFINITION_HPP_
 
#include "ContinuumMechanicsProblemDefinition.hpp"
 
template<unsigned DIM>
class StokesFlowProblemDefinition : public ContinuumMechanicsProblemDefinition<DIM>
{
private:
    double mMu;
 
public:
    StokesFlowProblemDefinition(AbstractTetrahedralMesh<DIM,DIM>& rMesh)
        : ContinuumMechanicsProblemDefinition<DIM>(rMesh),
          mMu(-1.0)
    {
    }
 
    virtual ~StokesFlowProblemDefinition()
    {
    }
 
    void SetViscosity(double mu)
    {
        assert(mu > 0.0);
        mMu = mu;
    }
 
    double GetViscosity()
    {
        if (mMu < 0.0)
        {
            EXCEPTION("Viscosity hasn't been set yet (for the Stokes' flow problem)");
        }
        return mMu;
    }
 
    void SetZeroFlowNodes(std::vector<unsigned>& rZeroFlowNodes)
    {
        this->SetZeroDirichletNodes(rZeroFlowNodes);
    }
 
    void SetPrescribedFlowNodes(std::vector<unsigned>& rPrescribedFlowNodes, std::vector<c_vector<double,DIM> >& rPrescribedFlow)
    {
        assert(rPrescribedFlowNodes.size()==rPrescribedFlow.size());
 
        this->mDirichletNodes = rPrescribedFlowNodes;
        this->mDirichletNodeValues = rPrescribedFlow;
    }
 
    virtual void Validate()
    {
        ContinuumMechanicsProblemDefinition<DIM>::Validate();
    }
};
 
 
#endif // STOKESFLOWPROBLEMDEFINITION_HPP_