ryujin::InitialValues< Description, dim, Number > Class Template Reference

#include <source/initial_values.h>

Inheritance diagram for ryujin::InitialValues< Description, dim, Number >:

Collaboration diagram for ryujin::InitialValues< Description, dim, Number >:

Public Member Functions
Constructor and setup
	InitialValues (const MPIEnsemble &mpi_ensemble, const OfflineData< dim, Number > &offline_data, const HyperbolicSystem &hyperbolic_system, const ParabolicSystem &parabolic_system, const std::string &subsection="/InitialValues")
void	parse_parameters_callback ()
Interpolate initial states
DEAL_II_ALWAYS_INLINE state_type	initial_state (const dealii::Point< dim > &point, Number t) const
DEAL_II_ALWAYS_INLINE initial_precomputed_type	initial_precomputed (const dealii::Point< dim > &point) const
HyperbolicVector	interpolate_hyperbolic_vector (Number t=0) const
InitialPrecomputedVector	interpolate_initial_precomputed_vector () const

Typedefs and constexpr constants
using	HyperbolicSystem = typename Description::HyperbolicSystem
using	ParabolicSystem = typename Description::ParabolicSystem
using	View = typename HyperbolicSystem::template View< dim, Number >
using	state_type = typename View::state_type
using	initial_precomputed_type = typename View::initial_precomputed_type
using	HyperbolicVector = typename View::HyperbolicVector
using	InitialPrecomputedVector = typename View::InitialPrecomputedVector
static constexpr auto	problem_dimension = View::problem_dimension
static constexpr auto	n_initial_precomputed_values

Detailed Description

template<typename Description, int dim, typename Number = double>
class ryujin::InitialValues< Description, dim, Number >

A class implementing a number of different initial value configurations.

Given a position point the member function InitialValues::initial_state() returns the corresponding (conserved) initial state. The function is used to interpolate initial values and enforce Dirichlet boundary conditions. For the latter, the the function signature has an additional parameter t denoting the current time to allow for time-dependent (in-flow) Dirichlet data.

For validation purposes a number of analytic solutions are implemented as well.

Definition at line 39 of file initial_values.h.

Member Typedef Documentation

HyperbolicSystem

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::HyperbolicSystem = typename Description::HyperbolicSystem

Definition at line 47 of file initial_values.h.

ParabolicSystem

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::ParabolicSystem = typename Description::ParabolicSystem

Definition at line 48 of file initial_values.h.

View

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::View = typename HyperbolicSystem::template View<dim, Number>

Definition at line 50 of file initial_values.h.

state_type

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::state_type = typename View::state_type

Definition at line 54 of file initial_values.h.

initial_precomputed_type

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::initial_precomputed_type = typename View::initial_precomputed_type

Definition at line 59 of file initial_values.h.

HyperbolicVector

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::HyperbolicVector = typename View::HyperbolicVector

Definition at line 61 of file initial_values.h.

InitialPrecomputedVector

template<typename Description , int dim, typename Number = double>

using ryujin::InitialValues< Description, dim, Number >::InitialPrecomputedVector = typename View::InitialPrecomputedVector

Definition at line 63 of file initial_values.h.

Constructor & Destructor Documentation

InitialValues()

template<typename Description , int dim, typename Number >

ryujin::InitialValues< Description, dim, Number >::InitialValues	(	const MPIEnsemble &	mpi_ensemble,
		const OfflineData< dim, Number > &	offline_data,
		const HyperbolicSystem &	hyperbolic_system,
		const ParabolicSystem &	parabolic_system,
		const std::string &	subsection = "/InitialValues< Description, dim, Number >"
	)

Constructor.

Definition at line 20 of file initial_values.template.h.

References ryujin::InitialStateLibrary< Description, dim, Number >::populate_initial_state_list().

Member Function Documentation

parse_parameters_callback()

template<typename Description , int dim, typename Number >

void ryujin::InitialValues< Description, dim, Number >::parse_parameters_callback

(

)

Callback for ParameterAcceptor::initialize(). After we read in configuration parameters from the parameter file we have to do some (minor) preparatory work in this class to precompute some initial state values. Do this with a callback.

Definition at line 180 of file initial_values.template.h.

initial_state()

template<typename Description , int dim, typename Number = double>

DEAL_II_ALWAYS_INLINE state_type ryujin::InitialValues< Description, dim, Number >::initial_state ( const dealii::Point< dim > &  point, Number  t  ) const

inline

Given a position point returns the corresponding (conserved) initial state. The function is used to interpolate initial values and enforce Dirichlet boundary conditions. For the latter, the function signature has an additional parameter t denoting the current time to allow for time-dependent (in-flow) Dirichlet data.

Definition at line 102 of file initial_values.h.

initial_precomputed()

template<typename Description , int dim, typename Number = double>

DEAL_II_ALWAYS_INLINE initial_precomputed_type ryujin::InitialValues< Description, dim, Number >::initial_precomputed ( const dealii::Point< dim > &  point ) const

inline

Given a position point returns the corresponding precomputed initial values, i.e., the quantities that are derived from the initial state and that remain constant throughout the computation (such as, for example, the bathymetry of the shallow water equations).

Definition at line 115 of file initial_values.h.

interpolate_hyperbolic_vector()

template<typename Description , int dim, typename Number >

auto ryujin::InitialValues< Description, dim, Number >::interpolate_hyperbolic_vector

(

Number

t = 0

)

const

This routine computes and returns a hyperbolic state vector populated with initial values for a specified time t.

Definition at line 249 of file initial_values.template.h.

interpolate_initial_precomputed_vector()

template<typename Description , int dim, typename Number >

auto ryujin::InitialValues< Description, dim, Number >::interpolate_initial_precomputed_vector

(

)

const

This routine computes and returns a vector populated with the precomputed initial values returned by initial_precomputed().

Definition at line 289 of file initial_values.template.h.

Member Data Documentation

problem_dimension

template<typename Description , int dim, typename Number = double>

constexpr auto ryujin::InitialValues< Description, dim, Number >::problem_dimension = View::problem_dimension

staticconstexpr

Definition at line 52 of file initial_values.h.

n_initial_precomputed_values

template<typename Description , int dim, typename Number = double>

constexpr auto ryujin::InitialValues< Description, dim, Number >::n_initial_precomputed_values

staticconstexpr

Initial value:

=
        View::n_initial_precomputed_values

Definition at line 56 of file initial_values.h.

---

The documentation for this class was generated from the following files:

• source/initial_values.h
• source/initial_values.template.h