Xcts::BoundaryConditions::Flatness< Registrars > Class Template Reference

Impose flat spacetime at this boundary. More...

#include <Flatness.hpp>

Public Member Functions
	Flatness (const Flatness &) noexcept=default
Flatness &	operator= (const Flatness &) noexcept=default
	Flatness (Flatness &&) noexcept=default
Flatness &	operator= (Flatness &&) noexcept=default
std::unique_ptr< domain::BoundaryConditions::BoundaryCondition >	get_clone () const noexcept override
Public Member Functions inherited from elliptic::BoundaryConditions::BoundaryCondition< 3, tmpl::list< Registrars::Flatness > >
	BoundaryCondition (const BoundaryCondition &)=default
	BoundaryCondition (BoundaryCondition &&)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
BoundaryCondition &	operator= (BoundaryCondition &&)=default
Public Member Functions inherited from domain::BoundaryConditions::BoundaryCondition
	BoundaryCondition (BoundaryCondition &&) noexcept=default
BoundaryCondition &	operator= (BoundaryCondition &&) noexcept=default
	BoundaryCondition (const BoundaryCondition &)=default
BoundaryCondition &	operator= (const BoundaryCondition &)=default
	BoundaryCondition (CkMigrateMessage *const msg) noexcept
	WRAPPED_PUPable_abstract (BoundaryCondition)

Additional Inherited Members
Public Types inherited from elliptic::BoundaryConditions::BoundaryCondition< 3, tmpl::list< Registrars::Flatness > >
using	registrars = tmpl::list< Registrars::Flatness >
using	creatable_classes = Registration::registrants< registrars >
Static Public Attributes inherited from elliptic::BoundaryConditions::BoundaryCondition< 3, tmpl::list< Registrars::Flatness > >
static constexpr size_t	volume_dim

Detailed Description

template<typename Registrars = tmpl::list<Registrars::Flatness>>
class Xcts::BoundaryConditions::Flatness< Registrars >

Impose flat spacetime at this boundary.

Impose \(\psi=1\), \(\alpha\psi=1\), \(\beta_\mathrm{excess}^i=0\) on this boundary, where \(\psi\) is the conformal factor, \(\alpha\) is the lapse and \(\beta_\mathrm{excess}^i=\beta^i-\beta_\mathrm{background}^i\) is the shift excess (see Xcts::Tags::ShiftExcess for details on the split of the shift in background and excess). Note that this choice only truly represents flatness if the conformal background metric is flat.

Member Function Documentation

get_clone()

template<typename Registrars = tmpl::list<Registrars::Flatness>>

std::unique_ptr< domain::BoundaryConditions::BoundaryCondition > Xcts::BoundaryConditions::Flatness< Registrars >::get_clone ( ) const

inlineoverridevirtualnoexcept

Implements domain::BoundaryConditions::BoundaryCondition.