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              : 
       8              : #include "DataStructures/VariablesTag.hpp"
       9              : #include "Evolution/Systems/Burgers/BoundaryConditions/BoundaryCondition.hpp"
      10              : #include "Evolution/Systems/Burgers/Characteristics.hpp"
      11              : #include "Evolution/Systems/Burgers/Tags.hpp"
      12              : #include "Evolution/Systems/Burgers/TimeDerivativeTerms.hpp"
      13              : #include "Utilities/TMPL.hpp"
      14              : 
      15              : /// \ingroup EvolutionSystemsGroup
      16              : /// \brief Items related to evolving the %Burgers equation
      17              : /// \f$0 = \partial_t U + \partial_x\left(U^2/2\right)\f$.
      18              : ///
      19              : /// \note For this definition (i.e., with the factor of one half in the flux)
      20              : /// of the Burgers system, the local characteristic speed is \f$U\f$.
      21              : namespace Burgers {
      22            0 : struct System {
      23            0 :   static std::string name() { return "Burgers"; }
      24              : 
      25            0 :   static constexpr bool is_in_flux_conservative_form = true;
      26            0 :   static constexpr bool has_primitive_and_conservative_vars = false;
      27            0 :   static constexpr size_t volume_dim = 1;
      28              : 
      29            0 :   using boundary_conditions_base = BoundaryConditions::BoundaryCondition;
      30              : 
      31            0 :   using variables_tag = ::Tags::Variables<tmpl::list<Tags::U>>;
      32            0 :   using flux_variables = tmpl::list<Tags::U>;
      33            0 :   using gradient_variables = tmpl::list<>;
      34              : 
      35            0 :   using compute_volume_time_derivative_terms = TimeDerivativeTerms;
      36              : 
      37            0 :   using compute_largest_characteristic_speed =
      38              :       Tags::ComputeLargestCharacteristicSpeed;
      39              : };
      40              : }  // namespace Burgers