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/*!
* \file
* \ingroup BoundaryTests
* \brief A simple Stokes test problem for the staggered grid (Navier-)Stokes model.
*/
#ifndef DUMUX_STOKES_BJS_SUBPROBLEM_HH
#define DUMUX_STOKES_BJS_SUBPROBLEM_HH
#include <dumux/common/properties.hh>
#include <dumux/common/parameters.hh>
#include <dumux/common/numeqvector.hh>
#include <dumux/discretization/staggered/freeflow/properties.hh>
#include <dumux/freeflow/navierstokes/boundarytypes.hh>
#include <dumux/freeflow/navierstokes/model.hh>
#include <dumux/freeflow/navierstokes/problem.hh>
#include <dumux/multidomain/boundary/stokesdarcy/couplingdata.hh>
namespace Dumux {
/*!
* \brief The rans subproblem
*/
template <class TypeTag>
class StokesSubProblem : public NavierStokesProblem<TypeTag>
{
using ParentType = NavierStokesProblem<TypeTag>;
using FluidSystem = GetPropType<TypeTag, Properties::FluidSystem>;
using FluidState = GetPropType<TypeTag, Properties::FluidState>;
using GridGeometry = GetPropType<TypeTag, Properties::GridGeometry>;
using Indices = typename GetPropType<TypeTag, Properties::ModelTraits>::Indices;
using PrimaryVariables = GetPropType<TypeTag, Properties::PrimaryVariables>;
using NumEqVector = Dumux::NumEqVector<PrimaryVariables>;
using Scalar = GetPropType<TypeTag, Properties::Scalar>;
using ModelTraits = GetPropType<TypeTag, Properties::ModelTraits>;
using BoundaryTypes = Dumux::NavierStokesBoundaryTypes<GetPropType<TypeTag, Properties::ModelTraits>::numEq()>;
using Element = typename GridGeometry::GridView::template Codim<0>::Entity;
using GlobalPosition = typename Element::Geometry::GlobalCoordinate;
using FVElementGeometry = typename GetPropType<TypeTag, Properties::GridGeometry>::LocalView;
using SubControlVolume = typename FVElementGeometry::SubControlVolume;
using SubControlVolumeFace = typename FVElementGeometry::SubControlVolumeFace;
using CouplingManager = GetPropType<TypeTag, Properties::CouplingManager>;
static constexpr auto dimWorld = GridGeometry::GridView::dimensionworld;
public:
StokesSubProblem(std::shared_ptr<const GridGeometry> gridGeometry,
std::shared_ptr<CouplingManager> couplingManager)
: ParentType(gridGeometry, "NavierStokes")
, eps_(1e-8)
, couplingManager_(couplingManager)
{
problemName_ = getParam<std::string>("Vtk.OutputName") + "_" + getParamFromGroup<std::string>(this->paramGroup(), "Problem.Name");
pressureDifference_ = getParam<Scalar>("Problem.PressureDifference");
porousMediaBoxMin_ = getParam<GlobalPosition>("Problem.PorousMediaBoxMin");
porousMediaBoxMax_ = getParam<GlobalPosition>("Problem.PorousMediaBoxMax");
}
const std::string& name() const
{ return problemName_; }
/*!
* \brief Returns the temperature [K] within the domain for the isothermal model.
*/
Scalar temperature() const
{ return 298.15; }
/*!
* \brief Specifies which kind of boundary condition should be
* used for which equation on a given boundary segment.
*
* \param element The finite element
* \param scvf The sub control volume face
*/
BoundaryTypes boundaryTypes(const Element& element,
const SubControlVolumeFace& scvf) const
{
BoundaryTypes values;
const auto& globalPos = scvf.ipGlobal();
if (onLeftBoundary_(globalPos) || onRightBoundary_(globalPos))
values.setDirichlet(Indices::pressureIdx);
else if (isOnCouplingWall_(scvf))
{
values.setCouplingNeumann(Indices::conti0EqIdx);
values.setCouplingNeumann(scvf.directionIndex());
values.setBeaversJoseph(1 - scvf.directionIndex());
}
else
values.setAllSymmetry();
return values;
}
/*!
* \brief Evaluate the boundary conditions for a dirichlet
* control volume.
*
* \param globalPos The center of the finite volume which ought to be set.
*/
PrimaryVariables dirichletAtPos(const GlobalPosition& globalPos) const
{
PrimaryVariables values(0.0);
if(onLeftBoundary_(globalPos))
values[Indices::pressureIdx] = pressureDifference_;
return values;
}
/*!
* \brief Evaluates the boundary conditions for a Neumann control volume.
*
* \param element The element for which the Neumann boundary condition is set
* \param fvGeometry The fvGeometry
* \param elemVolVars The element volume variables
* \param elemFaceVars The element face variables
* \param scvf The boundary sub control volume face
*/
template<class ElementVolumeVariables, class ElementFaceVariables>
NumEqVector neumann(const Element& element,
const FVElementGeometry& fvGeometry,
const ElementVolumeVariables& elemVolVars,
const ElementFaceVariables& elemFaceVars,
const SubControlVolumeFace& scvf) const
{
NumEqVector values(0.0);
if (couplingManager().isCoupledEntity(CouplingManager::stokesIdx, scvf))
{
values[Indices::conti0EqIdx] = couplingManager().couplingData().massCouplingCondition(element, fvGeometry, elemVolVars, elemFaceVars, scvf);
values[Indices::momentumYBalanceIdx] = couplingManager().couplingData().momentumCouplingCondition(element, fvGeometry, elemVolVars, elemFaceVars, scvf);
}
return values;
}
/*!
* \brief Evaluate the initial value for a control volume.
*
* \param globalPos The global position
*/
PrimaryVariables initialAtPos(const GlobalPosition &globalPos) const
{ return PrimaryVariables(0.0); }
//! Returns the intrinsic permeability of required as input parameter for the Beavers-Joseph-Saffman boundary condition
Scalar permeability(const Element& element, const SubControlVolumeFace& scvf) const
{ return couplingManager().couplingData().darcyPermeability(element, scvf); }
//! Returns the alpha value required as input parameter for the Beavers-Joseph-Saffman boundary condition
Scalar alphaBJ(const SubControlVolumeFace& scvf) const
{ return couplingManager().problem(CouplingManager::darcyIdx).spatialParams().beaversJosephCoeffAtPos(scvf.center()); }
//! Set the coupling manager
void setCouplingManager(std::shared_ptr<CouplingManager> cm)
{ couplingManager_ = cm; }
//! Get the coupling manager
const CouplingManager& couplingManager() const
{ return *couplingManager_; }
private:
bool onLeftBoundary_(const GlobalPosition &globalPos) const
{ return globalPos[0] < this->gridGeometry().bBoxMin()[0] + eps_; }
bool onRightBoundary_(const GlobalPosition &globalPos) const
{ return globalPos[0] > this->gridGeometry().bBoxMax()[0] - eps_; }
bool onLowerBoundary_(const GlobalPosition &globalPos) const
{ return globalPos[1] < this->gridGeometry().bBoxMin()[1] + eps_; }
bool onUpperBoundary_(const GlobalPosition &globalPos) const
{ return globalPos[1] > this->gridGeometry().bBoxMax()[1] - eps_; }
bool isOnCouplingWall_(const SubControlVolumeFace& scvf) const
{ return couplingManager().isCoupledEntity(CouplingManager::stokesIdx, scvf); }
// the height of the free-flow domain
const Scalar height_() const
{ return this->gridGeometry().bBoxMax()[1] - this->gridGeometry().bBoxMin()[1]; }
Scalar pressureDifference_;
GlobalPosition porousMediaBoxMin_;
GlobalPosition porousMediaBoxMax_;
Scalar eps_;
std::string problemName_;
std::shared_ptr<CouplingManager> couplingManager_;
};
} // end namespace Dumux
#endif