ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber > Class Template Reference

#include <source/scalar_conservation/wave_speed_estimator.h>

Inheritance diagram for ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >:

Collaboration diagram for ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >:

Public Types
Typedefs and constexpr constants
template<int dim, typename Number = double>
using	View = WaveSpeedEstimatorView< dim, Number >

Public Member Functions
Constructor and setup
	WaveSpeedEstimator (const HyperbolicSystem &hyperbolic_system, const std::string &subsection="/WaveSpeedEstimator")
Information and statistics
	ACCESSOR_READ_ONLY (use_greedy_wavespeed)
	ACCESSOR_READ_ONLY (use_averaged_entropy)
	ACCESSOR_READ_ONLY (random_entropies)
template<int dim, typename Number >
auto	view () const

Detailed Description

template<typename ScalarNumber = double>
class ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >

A fast estimate for a sufficient maximal wavespeed of the 1D Riemann problem. The wavespeed estimate is based on a guaranteed upper bound on the maximal wavespeed for convex fluxes, see Example 79.17 on page 333 of [GuermondErn2021]. As well as an augmented "Roe average" based on an entropy inequality of a suitable Krŭzkov entropy, see [ryujin-2023-5] Section 4.

Definition at line 36 of file wave_speed_estimator.h.

Member Typedef Documentation

View

template<typename ScalarNumber = double>

template<int dim, typename Number = double>

using ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::View = WaveSpeedEstimatorView<dim, Number>

Alias for the view on the wave speed estimator for a given dimension dim and choice of number type Number.

Definition at line 49 of file wave_speed_estimator.h.

Constructor & Destructor Documentation

WaveSpeedEstimator()

template<typename ScalarNumber = double>

ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::WaveSpeedEstimator ( const HyperbolicSystem &  hyperbolic_system, const std::string &  subsection = "/WaveSpeedEstimator< ScalarNumber >"  )

inline

Constructor.

Definition at line 60 of file wave_speed_estimator.h.

Member Function Documentation

ACCESSOR_READ_ONLY() [1/3]

template<typename ScalarNumber = double>

ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::ACCESSOR_READ_ONLY

(

use_greedy_wavespeed

)

ACCESSOR_READ_ONLY() [2/3]

template<typename ScalarNumber = double>

ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::ACCESSOR_READ_ONLY

(

use_averaged_entropy

)

ACCESSOR_READ_ONLY() [3/3]

template<typename ScalarNumber = double>

ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::ACCESSOR_READ_ONLY

(

random_entropies

)

view()

template<typename ScalarNumber = double>

template<int dim, typename Number >

auto ryujin::ScalarConservation::WaveSpeedEstimator< ScalarNumber >::view ( ) const

inline

Return a view on the WaveSpeedEstimator for a given dimension dim and choice of number type Number (which can be a scalar float, or double, as well as a VectorizedArray holding packed scalars).

Definition at line 108 of file wave_speed_estimator.h.

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

• source/scalar_conservation/wave_speed_estimator.h