rotationsymmetricscv.hh

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#ifndef DUMUX_DISCRETIZATION_ROTATION_SYMMETRIC_SUBCONTROLVOLUME_HH
#define DUMUX_DISCRETIZATION_ROTATION_SYMMETRIC_SUBCONTROLVOLUME_HH
 
#include <cmath>
#include <dumux/discretization/rotationpolicy.hh>
 
namespace Dumux {
 
template<class SubControlVolume, RotationPolicy rotationPolicy>
class RotationSymmetricSubControlVolume;
 
template<class SubControlVolume>
class RotationSymmetricSubControlVolume<SubControlVolume, RotationPolicy::disc>
: public SubControlVolume
{
    using Scalar = typename SubControlVolume::Traits::Scalar;
    static_assert(SubControlVolume::Traits::Geometry::mydimension == 1, "Rotation symmetric scv with disc policy only works with 1d grids!");
    static_assert(SubControlVolume::Traits::Geometry::coorddimension == 1, "Rotation symmetric scv with disc policy only works with 1d grids!");
public:
    using SubControlVolume::SubControlVolume;
 
    Scalar volume() const
    {
        using std::abs;
        const auto radius0 = this->corner(0)[0];
        const auto radius1 = this->corner(1)[0];
        return M_PI*abs(radius1*radius1 - radius0*radius0);
    }
};
 
template<class SubControlVolume>
class RotationSymmetricSubControlVolume<SubControlVolume, RotationPolicy::ball>
: public SubControlVolume
{
    using Scalar = typename SubControlVolume::Traits::Scalar;
    static_assert(SubControlVolume::Traits::Geometry::mydimension == 1, "Rotation symmetric scv with ball policy only works with 1d grids!");
    static_assert(SubControlVolume::Traits::Geometry::coorddimension == 1, "Rotation symmetric scv with ball policy only works with 1d grids!");
public:
    using SubControlVolume::SubControlVolume;
 
    Scalar volume() const
    {
        using std::abs;
        const auto radius0 = this->corner(0)[0];
        const auto radius1 = this->corner(1)[0];
        return 4.0/3.0*M_PI*abs(radius1*radius1*radius1 - radius0*radius0*radius0);
    }
};
 
template<class SubControlVolume>
class RotationSymmetricSubControlVolume<SubControlVolume, RotationPolicy::toroid>
: public SubControlVolume
{
    using Scalar = typename SubControlVolume::Traits::Scalar;
    static_assert(SubControlVolume::Traits::Geometry::mydimension == 2, "Rotation symmetric scv with toroid policy only works with 2d grids!");
    static_assert(SubControlVolume::Traits::Geometry::coorddimension == 2, "Rotation symmetric scv with toroid policy only works with 2d grids!");
public:
    using SubControlVolume::SubControlVolume;
 
    Scalar volume() const
    {
        const auto radius = this->center()[0];
        return SubControlVolume::volume()*2.0*M_PI*radius;
    }
};
 
} // end namespace Dumux
 
#endif