Line data    Source code

       1           0 : // Distributed under the MIT License.
       2             : // See LICENSE.txt for details.
       3             : 
       4             : #pragma once
       5             : 
       6             : #include <cstddef>
       7             : #include <pup.h>
       8             : 
       9             : #include "DataStructures/ComplexDataVector.hpp"
      10             : #include "DataStructures/DataVector.hpp"
      11             : #include "DataStructures/Tensor/Tensor.hpp"
      12             : #include "DataStructures/Variables.hpp"
      13             : #include "DataStructures/VariablesTag.hpp"
      14             : #include "Elliptic/Systems/SelfForce/Scalar/Tags.hpp"
      15             : #include "NumericalAlgorithms/DiscontinuousGalerkin/Tags.hpp"
      16             : #include "PointwiseFunctions/GeneralRelativity/Tags.hpp"
      17             : #include "Utilities/Gsl.hpp"
      18             : #include "Utilities/MakeWithValue.hpp"
      19             : #include "Utilities/TMPL.hpp"
      20             : 
      21             : namespace ScalarSelfForce {
      22             : 
      23             : /*!
      24             :  * \brief The first-order flux
      25             :  * $F^i=\{\partial_{r_\star}, \alpha \partial_{\cos\theta}\}\Psi_m$.
      26             :  */
      27           1 : void fluxes(gsl::not_null<tnsr::I<ComplexDataVector, 2>*> flux,
      28             :             const Scalar<ComplexDataVector>& alpha,
      29             :             const tnsr::i<ComplexDataVector, 2>& field_gradient);
      30             : 
      31             : /*!
      32             :  * \brief The first-order flux on an element face
      33             :  * $F^i=\{n_{r_\star}, \alpha n_{\cos\theta}\}\Psi_m$.
      34             :  */
      35           1 : void fluxes_on_face(gsl::not_null<tnsr::I<ComplexDataVector, 2>*> flux,
      36             :                     const Scalar<ComplexDataVector>& alpha,
      37             :                     const tnsr::I<DataVector, 2>& face_normal_vector,
      38             :                     const Scalar<ComplexDataVector>& field);
      39             : 
      40             : /*!
      41             :  * \brief The source term $\beta \Psi_m + \gamma_i F^i$.
      42             :  */
      43           1 : void add_sources(gsl::not_null<Scalar<ComplexDataVector>*> source,
      44             :                  const Scalar<ComplexDataVector>& beta,
      45             :                  const tnsr::i<ComplexDataVector, 2>& gamma,
      46             :                  const Scalar<ComplexDataVector>& field,
      47             :                  const tnsr::I<ComplexDataVector, 2>& flux);
      48             : 
      49             : /// Fluxes $F^i$ for the scalar self-force system.
      50             : /// \see ScalarSelfForce::FirstOrderSystem
      51           1 : struct Fluxes {
      52           0 :   using argument_tags = tmpl::list<Tags::Alpha>;
      53           0 :   using volume_tags = tmpl::list<>;
      54           0 :   using const_global_cache_tags = tmpl::list<>;
      55           0 :   static constexpr bool is_trivial = false;
      56           0 :   static constexpr bool is_discontinuous = false;
      57           0 :   static void apply(gsl::not_null<tnsr::I<ComplexDataVector, 2>*> flux,
      58             :                     const Scalar<ComplexDataVector>& alpha,
      59             :                     const Scalar<ComplexDataVector>& /*field*/,
      60             :                     const tnsr::i<ComplexDataVector, 2>& field_gradient);
      61           0 :   static void apply(gsl::not_null<tnsr::I<ComplexDataVector, 2>*> flux,
      62             :                     const Scalar<ComplexDataVector>& alpha,
      63             :                     const tnsr::i<DataVector, 2>& /*face_normal*/,
      64             :                     const tnsr::I<DataVector, 2>& face_normal_vector,
      65             :                     const Scalar<ComplexDataVector>& field);
      66             : };
      67             : 
      68             : /// Source terms for the scalar self-force system.
      69             : /// \see ScalarSelfForce::FirstOrderSystem
      70           1 : struct Sources {
      71           0 :   using argument_tags = tmpl::list<Tags::Beta, Tags::Gamma>;
      72           0 :   using const_global_cache_tags = tmpl::list<>;
      73           0 :   static void apply(gsl::not_null<Scalar<ComplexDataVector>*> scalar_equation,
      74             :                     const Scalar<ComplexDataVector>& beta,
      75             :                     const tnsr::i<ComplexDataVector, 2>& gamma,
      76             :                     const Scalar<ComplexDataVector>& field,
      77             :                     const tnsr::I<ComplexDataVector, 2>& flux);
      78             : };
      79             : 
      80             : /*!
      81             :  * \brief Adds or subtracts the singular field to/from the received data on
      82             :  * element boundaries.
      83             :  *
      84             :  * In the regularized region we solve for the regularized field
      85             :  * \begin{equation}
      86             :  *   \Psi_m^R = \Psi_m - \Psi_m^P
      87             :  *   \text{,}
      88             :  * \end{equation}
      89             :  * so we subtract the singular field on the regularized side and add it on the
      90             :  * other side of the boundary. We do the same for the received normal dot flux
      91             :  * $n_i F^i$, but with an extra minus sign because this quantity is defined with
      92             :  * the face normal from the perspective of the sending element (see
      93             :  * `elliptic::protocols::FirstOrderSystem`).
      94             :  */
      95           1 : struct ModifyBoundaryData {
      96             :  private:
      97           0 :   static constexpr size_t Dim = 2;
      98           0 :   using singular_vars_on_mortars_tag =
      99             :       ::Tags::Variables<tmpl::list<Tags::SingularField,
     100             :                                    ::Tags::NormalDotFlux<Tags::SingularField>>>;
     101             : 
     102             :  public:
     103           0 :   using argument_tags =
     104             :       tmpl::list<Tags::FieldIsRegularized,
     105             :                  ::Tags::Mortars<Tags::FieldIsRegularized, Dim>,
     106             :                  ::Tags::Mortars<singular_vars_on_mortars_tag, Dim>>;
     107           0 :   static void apply(
     108             :       gsl::not_null<Scalar<ComplexDataVector>*> field,
     109             :       gsl::not_null<Scalar<ComplexDataVector>*> n_dot_flux,
     110             :       const DirectionalId<Dim>& mortar_id, bool field_is_regularized,
     111             :       const DirectionalIdMap<Dim, bool>& neighbors_field_is_regularized,
     112             :       const DirectionalIdMap<Dim, typename singular_vars_on_mortars_tag::type>&
     113             :           singular_vars_on_mortars);
     114             : };
     115             : 
     116             : }  // namespace ScalarSelfForce