ScalarWave::BoundaryConditions::SphericalRadiation< Dim > Class Template Reference

Impose spherical radiation boundary conditions. More...

#include <SphericalRadiation.hpp>

Classes
struct	TypeOptionTag

Public Types
using	options = implementation defined
using	dg_interior_evolved_variables_tags = implementation defined
using	dg_interior_temporary_tags = implementation defined
using	dg_gridless_tags = implementation defined

Public Member Functions
	SphericalRadiation (detail::SphericalRadiationType type)
	SphericalRadiation (SphericalRadiation &&)=default
SphericalRadiation &	operator= (SphericalRadiation &&)=default
	SphericalRadiation (const SphericalRadiation &)=default
SphericalRadiation &	operator= (const SphericalRadiation &)=default
	SphericalRadiation (CkMigrateMessage *msg)
	WRAPPED_PUPable_decl_base_template (domain::BoundaryConditions::BoundaryCondition, SphericalRadiation)
auto	get_clone () const -> std::unique_ptr< domain::BoundaryConditions::BoundaryCondition > override
void	pup (PUP::er &p) override
std::optional< std::string >	dg_ghost (gsl::not_null< Scalar< DataVector > * > psi_ext, gsl::not_null< Scalar< DataVector > * > pi_ext, gsl::not_null< tnsr::i< DataVector, Dim, Frame::Inertial > * > phi_ext, gsl::not_null< Scalar< DataVector > * > gamma2_ext, const std::optional< tnsr::I< DataVector, Dim, Frame::Inertial > > &, const tnsr::i< DataVector, Dim, Frame::Inertial > &normal_covector, const Scalar< DataVector > &psi, const tnsr::i< DataVector, Dim, Frame::Inertial > &phi, const tnsr::I< DataVector, Dim, Frame::Inertial > &coords, const Scalar< DataVector > &gamma2) const
Public Member Functions inherited from ScalarWave::BoundaryConditions::BoundaryCondition< Dim >
	BoundaryCondition (BoundaryCondition &&)=default
BoundaryCondition &	operator= (BoundaryCondition &&)=default
	BoundaryCondition (const BoundaryCondition &)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
	BoundaryCondition (CkMigrateMessage *msg)
void	pup (PUP::er &p) override
Public Member Functions inherited from domain::BoundaryConditions::BoundaryCondition
	BoundaryCondition (BoundaryCondition &&)=default
BoundaryCondition &	operator= (BoundaryCondition &&)=default
	BoundaryCondition (const BoundaryCondition &)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
	BoundaryCondition (CkMigrateMessage *const msg)
	WRAPPED_PUPable_abstract (BoundaryCondition)
virtual auto	get_clone () const -> std::unique_ptr< BoundaryCondition >=0

Static Public Attributes
static constexpr Options::String	help
static constexpr evolution::BoundaryConditions::Type	bc_type

Detailed Description

template<size_t Dim>
class ScalarWave::BoundaryConditions::SphericalRadiation< Dim >

Impose spherical radiation boundary conditions.

These can be imposed in one of two forms:

$$\begin{array}{r}\mathrm{\Pi }={\partial }_r\mathrm{\Psi },\end{array}$$

referred to as a Sommerfeld condition, or

$$\begin{array}{r}\mathrm{\Pi }={\partial }_r\mathrm{\Psi }+\frac{1}{r}\mathrm{\Psi }\end{array}$$

referred to as a Bayliss-Turkel condition.

The Bayliss-Turkel condition produces fewer reflections than the Sommerfeld condition.

Warning

These are implemented assuming the outer boundary is spherical and centered at the origin of the radiation because the code sets $\mathrm{\Pi }=n^i{\mathrm{\Phi }}_i$, where $n^i$ is the outward pointing unit normal vector. It might be possible to generalize the condition to non-spherical boundaries by using $x^i/r$ instead of $n^i$, but this hasn't been tested.

Member Function Documentation

get_clone()

template<size_t Dim>

auto ScalarWave::BoundaryConditions::SphericalRadiation< Dim >::get_clone ( ) const -> std::unique_ptr< domain::BoundaryConditions::BoundaryCondition >

overridevirtual

Implements domain::BoundaryConditions::BoundaryCondition.

Member Data Documentation

bc_type

template<size_t Dim>

constexpr evolution::BoundaryConditions::Type ScalarWave::BoundaryConditions::SphericalRadiation< Dim >::bc_type

staticconstexpr

Initial value:

=
      evolution::BoundaryConditions::Type::Ghost

help

template<size_t Dim>

constexpr Options::String ScalarWave::BoundaryConditions::SphericalRadiation< Dim >::help

staticconstexpr

Initial value:

{
      "Spherical radiation boundary conditions setting the value of Psi, Phi, "
      "and Pi either using the Sommerfeld or first-order Bayliss-Turkel "
      "method."}

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The documentation for this class was generated from the following file:

• src/Evolution/Systems/ScalarWave/BoundaryConditions/SphericalRadiation.hpp