fsi_blocks/testsuite/fsi_tube/boundaryConditions.hpp

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/*!
 *  @file
 *  @brief File containing the boundary conditions for the Monolithic Test
 *
 *  @date 2009-04-09
 *  @author Davide Forti <davide.forti@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 BCFSITUBE_HPP
#define BCFSITUBE_HPP

// LifeV includes
#include <lifev/core/LifeV.hpp>
#include <lifev/core/fem/BCHandler.hpp>

#include "ud_functions.hpp"

#define OUTLET 3
#define INLET  2
#define WALL   1
#define INOUTEDGE 20
#define OUTERWALL 10
#define FLUIDINTERFACE 1

namespace LifeV
{

typedef boost::shared_ptr<BCHandler> bcPtr_Type;

// Set here the BCs for the fluid
bcPtr_Type BCh_fluid ()
{
    BCFunctionBase zero_function (fZero);
    BCFunctionBase pressure_wave (pressure);

    bcPtr_Type bc (new BCHandler );
    bc->addBC ("Inflow",     INLET,      Natural,        Normal, pressure_wave);
    bc->addBC ("INOUTEDGE",  INOUTEDGE,  EssentialEdges, Full,   zero_function,   3);
    bc->addBC ("Outflow",    OUTLET,     Natural,        Normal, zero_function);

    return bc;
}

// Set here the BCs for the structure
bcPtr_Type BCh_structure ()
{
    BCFunctionBase zero_function (fZero);

    bcPtr_Type bc (new BCHandler );

    bc->addBC ("Inflow",     INLET,      Essential,      Full, zero_function, 3);
    bc->addBC ("Outflow",    OUTLET,     Essential,      Full, zero_function, 3);

    return bc;
}

// Set here the BCs for the ale
bcPtr_Type BCh_ale ()
{
    BCFunctionBase zero_function (fZero);

    bcPtr_Type bc (new BCHandler );

    bc->addBC ("Inflow",  INLET,     Essential, Full, zero_function, 3);
    bc->addBC ("Outflow", OUTLET,    Essential, Full, zero_function, 3);

    return bc;
}

// Whatever problem is solved, this function below need to be present
// as we use it to apply dirichlet BCs at the fluid interface when
// using the FaCSI preconditioner
bcPtr_Type BCh_interfaceFluid ()
{
    BCFunctionBase zero_function (fZero);

    bcPtr_Type bc (new BCHandler );

    bc->addBC ("Interface", FLUIDINTERFACE, Essential, Full, zero_function, 3);

    return bc;
}

}

#endif