SpECTRE Documentation Coverage Report
Current view: top level - PointwiseFunctions/AnalyticSolutions/GrMhd - KomissarovShock.hpp Coverage Total Hit
Commit: 0d1d717af84a81fb1284a20c4013708fe85cc2f0 Lines: 13.8 % 94 13
Test Date: 2026-10-22 17:29:42
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            Line data    Source code
       1            0 : // Distributed under the MIT License.
       2              : // See LICENSE.txt for details.
       3              : 
       4              : #pragma once
       5              : 
       6              : #include <array>
       7              : #include <limits>
       8              : #include <string>
       9              : 
      10              : #include "DataStructures/TaggedTuple.hpp"
      11              : #include "DataStructures/Tensor/TypeAliases.hpp"
      12              : #include "Options/String.hpp"
      13              : #include "PointwiseFunctions/AnalyticSolutions/AnalyticSolution.hpp"
      14              : #include "PointwiseFunctions/AnalyticSolutions/GeneralRelativity/Minkowski.hpp"
      15              : #include "PointwiseFunctions/AnalyticSolutions/GrMhd/Solutions.hpp"
      16              : #include "PointwiseFunctions/Hydro/EquationsOfState/IdealFluid.hpp"
      17              : #include "PointwiseFunctions/Hydro/TagsDeclarations.hpp"
      18              : #include "PointwiseFunctions/InitialDataUtilities/InitialData.hpp"
      19              : #include "Utilities/Serialization/CharmPupable.hpp"
      20              : #include "Utilities/TMPL.hpp"
      21              : 
      22              : /// \cond
      23              : namespace PUP {
      24              : class er;
      25              : }  // namespace PUP
      26              : /// \endcond
      27              : 
      28              : namespace grmhd::Solutions {
      29              : 
      30              : /*!
      31              :  * \brief A one-dimensional shock solution for an ideal fluid in Minkowski
      32              :  * spacetime
      33              :  *
      34              :  * This solution consists of a left state for \f$x<0\f$ and a right state for
      35              :  * \f$x\ge 0\f$, each with constant fluid variables. The interface between these
      36              :  * states moves with the shock speed \f$\mu\f$ as described in
      37              :  * \cite Komissarov1999.
      38              :  *
      39              :  * \note We do not currently support 1D RMHD, so this class provides a 3D
      40              :  * solution with \f$x\f$-dependence only. Therefore the computational domain can
      41              :  * be represented by a single element with periodic boundary conditions in the
      42              :  * \f$y\f$ and \f$z\f$ directions.
      43              :  */
      44            1 : class KomissarovShock
      45              :     : public evolution::initial_data::InitialData,
      46              :       public AnalyticSolution,
      47              :       public hydro::TemperatureInitialization<KomissarovShock>,
      48              :       public MarkAsAnalyticSolution {
      49              :  public:
      50            0 :   using equation_of_state_type = EquationsOfState::IdealFluid<true>;
      51              : 
      52            0 :   struct AdiabaticIndex {
      53            0 :     using type = double;
      54            0 :     static constexpr Options::String help = {
      55              :         "The adiabatic index of the ideal fluid"};
      56            0 :     static type lower_bound() { return 1.0; }
      57              :   };
      58            0 :   struct LeftRestMassDensity {
      59            0 :     using type = double;
      60            0 :     static std::string name() { return "LeftDensity"; };
      61            0 :     static constexpr Options::String help = {
      62              :         "Fluid rest mass density in the left half-domain"};
      63            0 :     static type lower_bound() { return 0.0; }
      64              :   };
      65            0 :   struct RightRestMassDensity {
      66            0 :     using type = double;
      67            0 :     static std::string name() { return "RightDensity"; };
      68            0 :     static constexpr Options::String help = {
      69              :         "Fluid rest mass density in the right half-domain"};
      70            0 :     static type lower_bound() { return 0.0; }
      71              :   };
      72              : 
      73            0 :   struct LeftElectronFraction {
      74            0 :     using type = double;
      75            0 :     static std::string name() { return "LeftElectronFraction"; };
      76            0 :     static constexpr Options::String help = {
      77              :         "Fluid electron fraction in the left half-domain"};
      78            0 :     static type lower_bound() { return 0.0; }
      79            0 :     static type upper_bound() { return 1.0; }
      80              :   };
      81            0 :   struct RightElectronFraction {
      82            0 :     using type = double;
      83            0 :     static std::string name() { return "RightElectronFraction"; };
      84            0 :     static constexpr Options::String help = {
      85              :         "Fluid electron fraction in the right half-domain"};
      86            0 :     static type lower_bound() { return 0.0; }
      87            0 :     static type upper_bound() { return 1.0; }
      88              :   };
      89            0 :   struct LeftPressure {
      90            0 :     using type = double;
      91            0 :     static constexpr Options::String help = {
      92              :         "Fluid pressure in the left half-domain"};
      93            0 :     static type lower_bound() { return 0.0; }
      94              :   };
      95            0 :   struct RightPressure {
      96            0 :     using type = double;
      97            0 :     static constexpr Options::String help = {
      98              :         "Fluid pressure in the right half-domain"};
      99            0 :     static type lower_bound() { return 0.0; }
     100              :   };
     101            0 :   struct LeftSpatialVelocity {
     102            0 :     using type = std::array<double, 3>;
     103            0 :     static std::string name() { return "LeftVelocity"; };
     104            0 :     static constexpr Options::String help = {
     105              :         "Fluid spatial velocity in the left half-domain"};
     106              :   };
     107            0 :   struct RightSpatialVelocity {
     108            0 :     using type = std::array<double, 3>;
     109            0 :     static std::string name() { return "RightVelocity"; };
     110            0 :     static constexpr Options::String help = {
     111              :         "Fluid spatial velocity in the right half-domain"};
     112              :   };
     113            0 :   struct LeftMagneticField {
     114            0 :     using type = std::array<double, 3>;
     115            0 :     static constexpr Options::String help = {
     116              :         "Magnetic field in the left half-domain"};
     117              :   };
     118            0 :   struct RightMagneticField {
     119            0 :     using type = std::array<double, 3>;
     120            0 :     static constexpr Options::String help = {
     121              :         "Magnetic field in the right half-domain"};
     122              :   };
     123            0 :   struct ShockSpeed {
     124            0 :     using type = double;
     125            0 :     static constexpr Options::String help = {"Propagation speed of the shock"};
     126              :   };
     127              : 
     128            0 :   using options =
     129              :       tmpl::list<AdiabaticIndex, LeftRestMassDensity, RightRestMassDensity,
     130              :                  LeftElectronFraction, RightElectronFraction, LeftPressure,
     131              :                  RightPressure, LeftSpatialVelocity, RightSpatialVelocity,
     132              :                  LeftMagneticField, RightMagneticField, ShockSpeed>;
     133              : 
     134            0 :   static constexpr Options::String help = {
     135              :       "Analytic initial data for a Komissarov shock test. The fluid variables "
     136              :       "are set homogeneously on either half of the domain left and right of "
     137              :       "x=0."};
     138              : 
     139            0 :   KomissarovShock() = default;
     140            0 :   KomissarovShock(const KomissarovShock& /*rhs*/) = default;
     141            0 :   KomissarovShock& operator=(const KomissarovShock& /*rhs*/) = default;
     142            0 :   KomissarovShock(KomissarovShock&& /*rhs*/) = default;
     143            0 :   KomissarovShock& operator=(KomissarovShock&& /*rhs*/) = default;
     144            0 :   ~KomissarovShock() override = default;
     145              : 
     146            0 :   KomissarovShock(double adiabatic_index, double left_rest_mass_density,
     147              :                   double right_rest_mass_density, double left_electron_fraction,
     148              :                   double right_electron_fraction, double left_pressure,
     149              :                   double right_pressure,
     150              :                   const std::array<double, 3>& left_spatial_velocity,
     151              :                   const std::array<double, 3>& right_spatial_velocity,
     152              :                   const std::array<double, 3>& left_magnetic_field,
     153              :                   const std::array<double, 3>& right_magnetic_field,
     154              :                   double shock_speed);
     155              : 
     156            0 :   auto get_clone() const
     157              :       -> std::unique_ptr<evolution::initial_data::InitialData> override;
     158              : 
     159              :   /// \cond
     160              :   explicit KomissarovShock(CkMigrateMessage* msg);
     161              :   using PUP::able::register_constructor;
     162              :   WRAPPED_PUPable_decl_template(KomissarovShock);
     163              :   /// \endcond
     164              : 
     165              :   /// @{
     166              :   /// Retrieve the GRMHD variables at a given position.
     167              :   template <typename DataType>
     168            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     169              :                  tmpl::list<hydro::Tags::RestMassDensity<DataType>> /*meta*/)
     170              :       const -> tuples::TaggedTuple<hydro::Tags::RestMassDensity<DataType>>;
     171              : 
     172              :   template <typename DataType>
     173            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     174              :                  tmpl::list<hydro::Tags::ElectronFraction<DataType>> /*meta*/)
     175              :       const -> tuples::TaggedTuple<hydro::Tags::ElectronFraction<DataType>>;
     176              : 
     177              :   template <typename DataType>
     178            1 :   auto variables(
     179              :       const tnsr::I<DataType, 3>& x, double t,
     180              :       tmpl::list<hydro::Tags::SpecificInternalEnergy<DataType>> /*meta*/) const
     181              :       -> tuples::TaggedTuple<hydro::Tags::SpecificInternalEnergy<DataType>>;
     182              : 
     183              :   template <typename DataType>
     184            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     185              :                  tmpl::list<hydro::Tags::Pressure<DataType>> /*meta*/) const
     186              :       -> tuples::TaggedTuple<hydro::Tags::Pressure<DataType>>;
     187              : 
     188              :   template <typename DataType>
     189            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     190              :                  tmpl::list<hydro::Tags::SpatialVelocity<DataType, 3>> /*meta*/)
     191              :       const -> tuples::TaggedTuple<hydro::Tags::SpatialVelocity<DataType, 3>>;
     192              : 
     193              :   template <typename DataType>
     194            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     195              :                  tmpl::list<hydro::Tags::MagneticField<DataType, 3>> /*meta*/)
     196              :       const -> tuples::TaggedTuple<hydro::Tags::MagneticField<DataType, 3>>;
     197              : 
     198              :   template <typename DataType>
     199            1 :   auto variables(
     200              :       const tnsr::I<DataType, 3>& x, double t,
     201              :       tmpl::list<hydro::Tags::DivergenceCleaningField<DataType>> /*meta*/) const
     202              :       -> tuples::TaggedTuple<hydro::Tags::DivergenceCleaningField<DataType>>;
     203              : 
     204              :   template <typename DataType>
     205            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     206              :                  tmpl::list<hydro::Tags::LorentzFactor<DataType>> /*meta*/)
     207              :       const -> tuples::TaggedTuple<hydro::Tags::LorentzFactor<DataType>>;
     208              : 
     209              :   template <typename DataType>
     210            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     211              :                  tmpl::list<hydro::Tags::SpecificEnthalpy<DataType>> /*meta*/)
     212              :       const -> tuples::TaggedTuple<hydro::Tags::SpecificEnthalpy<DataType>>;
     213              : 
     214              :   template <typename DataType>
     215            1 :   auto variables(const tnsr::I<DataType, 3>& x, double t,
     216              :                  tmpl::list<hydro::Tags::Temperature<DataType>> /*meta*/) const
     217              :       -> tuples::TaggedTuple<hydro::Tags::Temperature<DataType>> {
     218              :     return TemperatureInitialization::variables(
     219              :         x, t, tmpl::list<hydro::Tags::Temperature<DataType>>{});
     220              :   }
     221              :   /// @}
     222              : 
     223              :   /// Retrieve a collection of hydro variables at `(x, t)`
     224              :   template <typename DataType, typename Tag1, typename Tag2, typename... Tags>
     225            1 :   tuples::TaggedTuple<Tag1, Tag2, Tags...> variables(
     226              :       const tnsr::I<DataType, 3>& x, double t,
     227              :       tmpl::list<Tag1, Tag2, Tags...> /*meta*/) const {
     228              :     return {tuples::get<Tag1>(variables(x, t, tmpl::list<Tag1>{})),
     229              :             tuples::get<Tag2>(variables(x, t, tmpl::list<Tag2>{})),
     230              :             tuples::get<Tags>(variables(x, t, tmpl::list<Tags>{}))...};
     231              :   }
     232              : 
     233              :   /// Retrieve the metric variables
     234              :   template <typename DataType, typename Tag,
     235              :             Requires<tmpl::list_contains_v<
     236              :                 gr::analytic_solution_tags<3, DataType>, Tag>> = nullptr>
     237            1 :   tuples::TaggedTuple<Tag> variables(const tnsr::I<DataType, 3>& x, double t,
     238              :                                      tmpl::list<Tag> /*meta*/) const {
     239              :     return background_spacetime_.variables(x, t, tmpl::list<Tag>{});
     240              :   }
     241              : 
     242            0 :   const EquationsOfState::IdealFluid<true>& equation_of_state() const {
     243              :     return equation_of_state_;
     244              :   }
     245              : 
     246              :   // NOLINTNEXTLINE(google-runtime-references)
     247            0 :   void pup(PUP::er& /*p*/) override;
     248              : 
     249              :  protected:
     250            0 :   EquationsOfState::IdealFluid<true> equation_of_state_{};
     251            0 :   gr::Solutions::Minkowski<3> background_spacetime_{};
     252              : 
     253            0 :   double adiabatic_index_ = std::numeric_limits<double>::signaling_NaN();
     254            0 :   double left_rest_mass_density_ = std::numeric_limits<double>::signaling_NaN();
     255            0 :   double right_rest_mass_density_ =
     256              :       std::numeric_limits<double>::signaling_NaN();
     257            0 :   double left_electron_fraction_ = std::numeric_limits<double>::signaling_NaN();
     258            0 :   double right_electron_fraction_ =
     259              :       std::numeric_limits<double>::signaling_NaN();
     260            0 :   double left_pressure_ = std::numeric_limits<double>::signaling_NaN();
     261            0 :   double right_pressure_ = std::numeric_limits<double>::signaling_NaN();
     262            0 :   std::array<double, 3> left_spatial_velocity_{
     263              :       {std::numeric_limits<double>::signaling_NaN(),
     264              :        std::numeric_limits<double>::signaling_NaN(),
     265              :        std::numeric_limits<double>::signaling_NaN()}};
     266            0 :   std::array<double, 3> right_spatial_velocity_{
     267              :       {std::numeric_limits<double>::signaling_NaN(),
     268              :        std::numeric_limits<double>::signaling_NaN(),
     269              :        std::numeric_limits<double>::signaling_NaN()}};
     270            0 :   std::array<double, 3> left_magnetic_field_{
     271              :       {std::numeric_limits<double>::signaling_NaN(),
     272              :        std::numeric_limits<double>::signaling_NaN(),
     273              :        std::numeric_limits<double>::signaling_NaN()}};
     274            0 :   std::array<double, 3> right_magnetic_field_{
     275              :       {std::numeric_limits<double>::signaling_NaN(),
     276              :        std::numeric_limits<double>::signaling_NaN(),
     277              :        std::numeric_limits<double>::signaling_NaN()}};
     278            0 :   double shock_speed_ = std::numeric_limits<double>::signaling_NaN();
     279              : 
     280            0 :   friend bool operator==(const KomissarovShock& lhs,
     281              :                          const KomissarovShock& rhs);
     282              : 
     283            0 :   friend bool operator!=(const KomissarovShock& lhs,
     284              :                          const KomissarovShock& rhs);
     285              : };
     286              : 
     287              : }  // namespace grmhd::Solutions
        

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