fsi/examples/benchmark_GreenshieldsWeller/boundaryConditions.hpp

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/*!
 *  @file
 *  @brief File containing the boundary conditions for the Monolithic Test
 *
 *  @date 2009-04-09
 *  @author Paolo Crosetto <crosetto@iacspc70.epfl.ch>
 *
 *  @contributor Cristiano Malossi <cristiano.malossi@epfl.ch>
 *  @maintainer Paolo Crosetto <crosetto@iacspc70.epfl.ch>
 *
 *  Contains the functions to be assigned as boundary conditions, in the file boundaryConditions.hpp . The functions
 *  can depend on time and space, while they can take in input an ID specifying one of the three principal axis
 *  if the functions to assign is vectorial and the boundary condition is of type \c Full \c.
 */

#ifndef BC_HPP
#define BC_HPP

// LifeV includes
#include "lifev/core/LifeV.hpp"
#include "lifev/core/fem/BCHandler.hpp"

// Mathcard includes
#include "lifev/fsi/solver/FSIMonolithicGE.hpp"
#include "lifev/fsi/solver/FSIMonolithicGI.hpp"

#define OUTLET 3
#define INLET 2
#define FLUIDINTERFACE 1
#define SOLIDINTERFACE 1
#define OUTERWALL 10
#define RING  2
#define RING2 3
#define INOUTEDGE 20
#define INEDGE 30

namespace LifeV
{


Real fZero (const Real& /*t*/, const Real& /*x*/, const Real& /*y*/, const Real& /*z*/, const ID& /*i*/)
{
    return 0.0;
}

Real u2normal (const Real& /*t*/, const Real& /*x*/, const Real& /*y*/, const Real& /*z*/, const ID& /*i*/)
{
    return -5.e4;
}

typedef FSIOperator::fluid_Type fluid;
typedef FSIOperator::solid_Type solid;

FSIOperator::fluidBchandlerPtr_Type BCh_harmonicExtension (FSIOperator& _oper)
{

    // Boundary condition for the mesh
    debugStream ( 10000 ) << "Boundary condition for the harmonic extension\n";

    BCFunctionBase bcf (fZero);

    FSISolver::fluidBchandlerPtr_Type BCh_he (new FSIOperator::fluidBchandler_Type );

    std::vector<ID> componentsVector (0);
    componentsVector.push_back (2);
    BCh_he->addBC ("Base",  INLET, Essential, Component, bcf, componentsVector);
    BCh_he->addBC ("Top",  OUTLET, Essential, Component, bcf, componentsVector);

    if (_oper.data().method() == "monolithicGE")
    {
        debugStream (10000) << "FSIMonolithic GCE harmonic extension\n";
        FSIMonolithicGE* MOper = dynamic_cast<FSIMonolithicGE*> (&_oper);
        MOper->setStructureDispToHarmonicExtension (_oper.lambdaFluidRepeated() );
        BCh_he->addBC ("Interface", SOLIDINTERFACE, Essential, Full,
                       *MOper->bcvStructureDispToHarmonicExtension(), 3);
    }

    return BCh_he;
}


FSIOperator::fluidBchandlerPtr_Type BCh_monolithicFluid (FSIOperator& _oper)
{
    // Boundary conditions for the fluid velocity

    if (! _oper.isFluid() )
    {
        return FSIOperator::fluidBchandlerPtr_Type();
    }

    FSIOperator::fluidBchandlerPtr_Type BCh_fluid ( new FSIOperator::fluidBchandler_Type );

    BCFunctionBase bcf      (fZero);
    BCFunctionBase in_flow  (u2normal);

    BCh_fluid->addBC ("InFlow" , INLET,  Natural, Normal, in_flow);

    return BCh_fluid;
}

FSIOperator::solidBchandlerPtr_Type BCh_monolithicSolid (FSIOperator& _oper)
{
    // Boundary conditions for the solid displacement

    if (! _oper.isSolid() )
    {
        return FSIOperator::solidBchandlerPtr_Type();
    }

    FSIOperator::solidBchandlerPtr_Type BCh_solid ( new FSIOperator::solidBchandler_Type );

    BCFunctionBase bcf (fZero);

    std::vector<ID> componentsVector (0);
    componentsVector.push_back (2);
    BCh_solid->addBC ("Base",  INLET, Essential, Component, bcf, componentsVector);
    BCh_solid->addBC ("Top",  OUTLET, Essential, Component, bcf, componentsVector);

    return BCh_solid;
}

FSIOperator::fluidBchandlerPtr_Type BCh_monolithicFlux (bool /*isOpen=true*/)
{
    FSIOperator::fluidBchandlerPtr_Type BCh_fluid ( new FSIOperator::fluidBchandler_Type );
    return BCh_fluid;
}

}

#endif