StepChoosers::ElementSizeCfl< StepChooserUse, Dim, System > Class Template Reference

Suggests a step size based on the CFL stability criterion, but uses the full size of the element as the length scale in question. More...

#include <ElementSizeCfl.hpp>

Classes
struct	SafetyFactor

Public Types
using	options = tmpl::list< SafetyFactor >
using	argument_tags = tmpl::list<::Tags::TimeStepper<>, domain::Tags::SizeOfElement< Dim >, typename System::compute_largest_characteristic_speed >
using	return_tags = tmpl::list<>
using	compute_tags = tmpl::list< domain::Tags::SizeOfElementCompute< Dim >, typename System::compute_largest_characteristic_speed >

Public Member Functions
	ElementSizeCfl (const double safety_factor) noexcept
template<typename Metavariables >
std::pair< double, bool >	operator() (const typename Metavariables::time_stepper_tag::type::element_type &time_stepper, const std::array< double, Dim > &element_size, const double speed, const double last_step_magnitude, const Parallel::GlobalCache< Metavariables > &) const noexcept
void	pup (PUP::er &p) noexcept override

Static Public Attributes
static constexpr Options::String	help

Detailed Description

template<typename StepChooserUse, size_t Dim, typename System>
class StepChoosers::ElementSizeCfl< StepChooserUse, Dim, System >

Suggests a step size based on the CFL stability criterion, but uses the full size of the element as the length scale in question.

This is useful as a coarse estimate for slabs, or to place a ceiling on another dynamically-adjusted step chooser.

Member Data Documentation

help

template<typename StepChooserUse , size_t Dim, typename System >

constexpr Options::String StepChoosers::ElementSizeCfl< StepChooserUse, Dim, System >::help

staticconstexpr

Initial value:

{
      "Suggests a step size based on the CFL stability criterion, but in which "
      "the entire size of the element is used as the spacing in the "
      "computation. This is useful primarily for placing a ceiling on another "
      "dynamically-adjusted step chooser"}