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 Types
using	HyperbolicSystem = typename Description::HyperbolicSystem
using	HyperbolicSystemView = typename HyperbolicSystem::template View< dim, Number >
using	state_type = typename HyperbolicSystemView::state_type
using	vector_type = MultiComponentVector< Number, problem_dimension >
using	precomputed_state_type = typename HyperbolicSystemView::precomputed_state_type

Public Member Functions
	InitialValues (const HyperbolicSystem &hyperbolic_system, const OfflineData< dim, Number > &offline_data, const std::string &subsection="/InitialValues")
void	parse_parameters_callback ()
DEAL_II_ALWAYS_INLINE state_type	initial_state (const dealii::Point< dim > &point, Number t) const
vector_type	interpolate (Number t=0) const
DEAL_II_ALWAYS_INLINE precomputed_state_type	flux_contributions (const dealii::Point< dim > &point) const
MultiComponentVector< Number, n_precomputed_values >	interpolate_precomputed_initial_values () const

Static Public Attributes
static constexpr unsigned int	problem_dimension
static constexpr unsigned int	n_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 37 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 43 of file initial_values.h.

HyperbolicSystemView

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

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

Definition at line 48 of file initial_values.h.

state_type

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

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

Definition at line 60 of file initial_values.h.

vector_type

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

using ryujin::InitialValues< Description, dim, Number >::vector_type = MultiComponentVector<Number, problem_dimension>

Typedef for a MultiComponentVector storing the state U.

Definition at line 65 of file initial_values.h.

precomputed_state_type

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

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

Array type used for precomputed values.

Definition at line 76 of file initial_values.h.

Constructor & Destructor Documentation

InitialValues()

template<typename Description , int dim, typename Number >

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

Constructor.

Definition at line 21 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 154 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 the function signature has an additional parameter t denoting the current time to allow for time-dependent (in-flow) Dirichlet data.

Definition at line 104 of file initial_values.h.

interpolate()

template<typename Description , int dim, typename Number >

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

(

Number

t = 0

)

const

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

Definition at line 222 of file initial_values.template.h.

References ryujin::MultiComponentVector< Number, n_comp, simd_length >::get_tensor(), ryujin::MultiComponentVector< Number, n_comp, simd_length >::insert_component(), ryujin::no_slip, ryujin::slip, and ryujin::MultiComponentVector< Number, n_comp, simd_length >::write_tensor().

flux_contributions()

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

DEAL_II_ALWAYS_INLINE precomputed_state_type ryujin::InitialValues< Description, dim, Number >::flux_contributions ( const dealii::Point< dim > &  point ) 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 the function signature has an additional parameter t denoting the current time to allow for time-dependent (in-flow) Dirichlet data.

Definition at line 125 of file initial_values.h.

interpolate_precomputed_initial_values()

template<typename Description , int dim, typename Number >

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

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

Definition at line 281 of file initial_values.template.h.

References ryujin::MultiComponentVector< Number, n_comp, simd_length >::insert_component(), and ryujin::MultiComponentVector< Number, n_comp, simd_length >::reinit_with_scalar_partitioner().

Member Data Documentation

problem_dimension

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

constexpr unsigned int ryujin::InitialValues< Description, dim, Number >::problem_dimension

staticconstexpr

Initial value:

=
        HyperbolicSystemView::problem_dimension

Definition at line 54 of file initial_values.h.

n_precomputed_values

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

constexpr unsigned int ryujin::InitialValues< Description, dim, Number >::n_precomputed_values

staticconstexpr

Initial value:

=
        HyperbolicSystemView::n_precomputed_initial_values

Definition at line 70 of file initial_values.h.

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

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