SpECTRE  v2023.09.07
Public Types | Static Public Member Functions | Static Public Attributes | List of all members
CurvedScalarWave::Worldtube::Initialization::InitializeSpacetimeTags Struct Reference

Initializes the inverse spacetime metric and trace of the spacetime christoffel symbol in the co-rotating grid frame at the position of the scalar charge. More...

#include <InitializeSpacetimeTags.hpp>

Public Types

using compute_tags = tmpl::list<>
 
using simple_tags_from_options = tmpl::list<>
 
using const_global_cache_tags = tmpl::list<>
 
using mutable_global_cache_tags = tmpl::list<>
 
using argument_tags = tmpl::list< Tags::ExcisionSphere< Dim > >
 
using simple_tags = tmpl::list< gr::Tags::InverseSpacetimeMetric< double, Dim, Frame::Grid >, gr::Tags::TraceSpacetimeChristoffelSecondKind< double, Dim, Frame::Grid > >
 
using return_tags = simple_tags
 

Static Public Member Functions

static void apply (const gsl::not_null< tnsr::AA< double, Dim, Frame::Grid > * > inverse_spacetime_metric, const gsl::not_null< tnsr::A< double, Dim, Frame::Grid > * > trace_spacetime_christoffel, const ExcisionSphere< Dim > &excision_sphere)
 

Static Public Attributes

static constexpr size_t Dim = 3
 

Detailed Description

Initializes the inverse spacetime metric and trace of the spacetime christoffel symbol in the co-rotating grid frame at the position of the scalar charge.

Details

This assumes a circular orbit so the spacetime quantities are constant in the co-rotating grid frame due to the spherical symmetry of the background spacetime. The mass of the central, non-spinning black hole is hard-coded to be 1 and. For non-circular orbits, this should probably be a compute tag that computes the background quantities at the current coordinates of the scalar charge each time step.

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