SpECTRE
v2024.05.11
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Computes \(u_i=W \gamma_{ij} v^j\), where \(W\) is the Lorentz factor, \(\gamma_{ij}\) is the spatial metric, and \(v^j\) is the spatial velocity. More...
#include <LowerSpatialFourVelocity.hpp>
Public Types | |
using | base = hydro::Tags::LowerSpatialFourVelocity< DataVector, 3, Frame::Inertial > |
using | argument_tags = tmpl::list< hydro::Tags::SpatialVelocity< DataVector, 3, Frame::Inertial >, gr::Tags::SpatialMetric< DataVector, 3 >, hydro::Tags::LorentzFactor< DataVector > > |
Public Types inherited from hydro::Tags::LowerSpatialFourVelocity< DataVector, 3, Frame::Inertial > | |
using | type = tnsr::i< DataVector, Dim, Frame::Inertial > |
Static Public Member Functions | |
static void | function (const gsl::not_null< tnsr::i< DataVector, 3 > * > result, const tnsr::I< DataVector, 3 > &spatial_velocity, const tnsr::ii< DataVector, 3 > &spatial_metric, const Scalar< DataVector > &lorentz_factor) |
Computes \(u_i=W \gamma_{ij} v^j\), where \(W\) is the Lorentz factor, \(\gamma_{ij}\) is the spatial metric, and \(v^j\) is the spatial velocity.