#include <runge_kutta_store_entropy.h>
Public Member Functions | |
| RKNumEntropy (std::shared_ptr< RKTableauBase< dim, real, MeshType >> rk_tableau_input) | |
| Default constructor that will set the constants. | |
| real | compute_FR_entropy_contribution (const real dt, std::shared_ptr< DGBase< dim, real, MeshType >> dg, const std::vector< dealii::LinearAlgebra::distributed::Vector< double >> &rk_stage, const bool compute_K_norm) const override |
| Calculate FR entropy adjustment. More... | |
 Public Member Functions inherited from PHiLiP::ODE::EmptyRRKBase< dim, real, MeshType > | |
| EmptyRRKBase (std::shared_ptr< RKTableauBase< dim, real, MeshType >>) | |
| Default constructor that will set the constants. | |
| virtual real | update_relaxation_parameter (const real, std::shared_ptr< DGBase< dim, real, MeshType >>, const std::vector< dealii::LinearAlgebra::distributed::Vector< double >> &, const dealii::LinearAlgebra::distributed::Vector< double > &) |
| Return the relaxation parameter per the RRK method. More... | |
Protected Member Functions | |
| void | store_stage_solutions (const int istage, const dealii::LinearAlgebra::distributed::Vector< double > rk_stage_i) override |
| Update stored quantities at the current stage. More... | |
| dealii::LinearAlgebra::distributed::Vector< double > | compute_entropy_vars (const dealii::LinearAlgebra::distributed::Vector< double > &u, std::shared_ptr< DGBase< dim, real, MeshType >> dg) const |
| Return the entropy variables from a solution vector u. | |
Protected Attributes | |
| std::shared_ptr< RKTableauBase< dim, real, MeshType > > | butcher_tableau |
| Store pointer to RK tableau. | |
| const int | n_rk_stages |
| Number of RK stages. | |
| const MPI_Comm | mpi_communicator |
| MPI communicator. | |
| const int | mpi_rank |
| MPI rank. | |
| dealii::ConditionalOStream | pcout |
| Parallel std::cout that only outputs on mpi_rank==0. | |
| std::vector< dealii::LinearAlgebra::distributed::Vector< double > > | rk_stage_solution |
| Storage for the solution at each Runge-Kutta stage. More... | |
Detailed Description
template<int dim, typename real, typename MeshType = dealii::parallel::distributed::Triangulation<dim>>
class PHiLiP::ODE::RKNumEntropy< dim, real, MeshType >
This class is to compute the FR correction to numerical entropy. It is intended to be used in cases where we compare semi-discrete NSFR with fully-discrete NSFR, such that numerical entropy is reported in a consistent fashion. This class does not modify the behaviour of the ODE solver.
Definition at line 19 of file runge_kutta_store_entropy.h.
Member Function Documentation
◆ compute_FR_entropy_contribution()
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overridevirtual |
Calculate FR entropy adjustment.
FR_contribution = dt =1^s b_i v^{(i)} K du^{(i)}/dt
Reimplemented from PHiLiP::ODE::EmptyRRKBase< dim, real, MeshType >.
Definition at line 113 of file runge_kutta_store_entropy.cpp.
◆ store_stage_solutions()
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overrideprotectedvirtual |
Update stored quantities at the current stage.
Stores solution at stage, rk_stage_solution
Reimplemented from PHiLiP::ODE::EmptyRRKBase< dim, real, MeshType >.
Definition at line 23 of file runge_kutta_store_entropy.cpp.
Member Data Documentation
◆ rk_stage_solution
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protected |
Storage for the solution at each Runge-Kutta stage.
Note that rk_stage is the time-derivative of the solution
Definition at line 54 of file runge_kutta_store_entropy.h.
The documentation for this class was generated from the following files:
- src/ode_solver/relaxation_runge_kutta/runge_kutta_store_entropy.h
- src/ode_solver/relaxation_runge_kutta/runge_kutta_store_entropy.cpp
