SpECTRE  v2024.05.11
Public Types | Static Public Member Functions | List of all members
grmhd::GhValenciaDivClean::subcell::ResizeAndComputePrims< OrderedListOfRecoverySchemes > Struct Template Reference

If the grid is switched from subcell to DG, then this mutator resizes the primitive variables to the DG grid and computes the primitive variables on the DG grid. More...

#include <ResizeAndComputePrimitives.hpp>

Public Types

using return_tags = tmpl::list<::Tags::Variables< hydro::grmhd_tags< DataVector > > >
 
using argument_tags = tmpl::list< evolution::dg::subcell::Tags::ActiveGrid, domain::Tags::Mesh< 3 >, evolution::dg::subcell::Tags::Mesh< 3 >, grmhd::ValenciaDivClean::Tags::TildeD, grmhd::ValenciaDivClean::Tags::TildeYe, grmhd::ValenciaDivClean::Tags::TildeTau, grmhd::ValenciaDivClean::Tags::TildeS<>, grmhd::ValenciaDivClean::Tags::TildeB<>, grmhd::ValenciaDivClean::Tags::TildePhi, gr::Tags::SpacetimeMetric< DataVector, 3 >, hydro::Tags::GrmhdEquationOfState, grmhd::ValenciaDivClean::Tags::PrimitiveFromConservativeOptions >
 

Static Public Member Functions

static void apply (gsl::not_null< Variables< hydro::grmhd_tags< DataVector > > * > prim_vars, evolution::dg::subcell::ActiveGrid active_grid, const Mesh< 3 > &dg_mesh, const Mesh< 3 > &subcell_mesh, const Scalar< DataVector > &tilde_d, const Scalar< DataVector > &tilde_ye, const Scalar< DataVector > &tilde_tau, const tnsr::i< DataVector, 3, Frame::Inertial > &tilde_s, const tnsr::I< DataVector, 3, Frame::Inertial > &tilde_b, const Scalar< DataVector > &tilde_phi, const tnsr::aa< DataVector, 3, Frame::Inertial > &spacetime_metric, const EquationsOfState::EquationOfState< true, 3 > &eos, const grmhd::ValenciaDivClean::PrimitiveFromConservativeOptions &primitive_from_conservative_options)
 

Detailed Description

template<typename OrderedListOfRecoverySchemes>
struct grmhd::GhValenciaDivClean::subcell::ResizeAndComputePrims< OrderedListOfRecoverySchemes >

If the grid is switched from subcell to DG, then this mutator resizes the primitive variables to the DG grid and computes the primitive variables on the DG grid.

In the DG-subcell step_actions list this will normally be called using the Actions::MutateApply action in the following way in the action list:

If the active grid is DG (we are switching from subcell back to DG) then this mutator computes the primitive variables on the active grid. We reconstruct the pressure to the DG grid to give a high-order initial guess for the primitive recovery. A possible future optimization would be to avoid this reconstruction when all recovery schemes don't need an initial guess. Finally, we perform the primitive recovery on the DG grid.

If the active grid is Subcell then this mutator does nothing.

Note
All evolved variables are on the DG grid when this mutator is called and the active grid is DG.
The documentation for this struct was generated from the following file: