/*---------------------------------------------------------------------------*\
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  \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
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    Copyright (C) 2012 OpenFOAM Foundation
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License
    This file is part of OpenFOAM.

    OpenFOAM is free software: you can redistribute it and/or modify it
    under the terms of the GNU General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
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// * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //

\defgroup grpBoundaryConditions Boundary conditions
@{
    This group contains OpenFOAM boundary condition types.  All conditions
    are derived from the base Foam::fvPatchField class.  Patch values are
    typically updated using the virtual functions
    - Foam::fvPatchField::updateCoeffs()
    - Foam::fvPatchField::evaluate()

    The difference between the methods is based on when the patch values are
    updated.  When the condition is applied to a solution variable, the
    call to updateCoeffs() occurs as a preliminary step of the
    \<matrix\>.solve().  The evaluate() method is invoked after, or independent
    of the matrix solve, via a call to \<field\>.correctBoundaryConditions().
@}

\defgroup grpConstraintBoundaryConditions Constraint
@{
    \ingroup grpBoundaryConditions
    This group contains constraint boundary condition types.  These conditions
    are mainly employed to reduced dimensioned cases.
@}

\defgroup grpInletBoundaryConditions Inlet
@{
    \ingroup grpBoundaryConditions
    This group contains inlet boundary condition types
@}

\defgroup grpOutletBoundaryConditions Outlet
@{
    \ingroup grpBoundaryConditions
    This group contains outlet boundary condition types
@}

\defgroup grpGenericBoundaryConditions Generic
@{
    \ingroup grpBoundaryConditions
    This group contains generic boundary condition types
@}

\defgroup grpCoupledBoundaryConditions Coupled
@{
    \ingroup grpBoundaryConditions
    This group contains coupled boundary condition types
@}

\defgroup grpWallBoundaryConditions Wall
@{
    \ingroup grpBoundaryConditions
    This group contains wall boundary condition types
@}

\*---------------------------------------------------------------------------*/
