wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter Class Reference

Simple scaling limiter which enforces positivity of density and pressure while preserving cell averages. More...

#include <ndg_euler_positivity_enforcing_limiter.h>

Inheritance diagram for wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter:

Detailed Description

Simple scaling limiter which enforces positivity of density and pressure while preserving cell averages.

Warpy constructor: warpy.variable_adjusters.limiters.dg_positivity_enforcing_limiter.dg_euler_positivity_enforcing_limiter

See also

Writeup document

Public Member Functions
	NDGEulerPositivityPreservingLimiter ()=default
virtual void	setup (const WxCryptSet &wxc) override
	Setup the spatial solver using the cryptset.
void	solve (real time, variables_type &input) override
	Applies the limiter to input by modifying it in place.
Public Member Functions inherited from wxm::dfem::variable_adjuster::variable_adjuster_t
	variable_adjuster_t ()
	Constructor.
void	setup (const WxCryptSet &wxc) override
	Setup the spatial solver using the cryptset.
virtual void	solve (real time, variables_type &input)=0
	applies the variable adjuster to input
std::vector< wxm::array::patch_array_t * >	get_patch_arrays (const variables_type &in)
void	process () override
virtual const std::vector< size_t > &	get_input_indices () const
int	priority () const
	Getter function for priority.
virtual void	Barrier (const WxMsgBase &msg, const real time, variables_type &input)
	An opportunity for the variable adjuster to perform any MPI operations it needs to after solve is called.
Public Member Functions inherited from WmPatchProcess
	WmPatchProcess ()
virtual	~WmPatchProcess ()=default
void	step ()
virtual void	process ()=0
void	setPatch (const WmUnstructuredPatch *patch)
void	setParentTaskProcessor (WmPatchProcessor *taskProcessor)
virtual std::string	name (std::string prefix="patchedProcessor.") const
virtual void	setup (const WxCryptSet &wxc)
void	setParentSolver (const WmSolverBase *solver)
void	setDt (WxStepper::time_t dt)
void	setTime (WxStepper::time_t time)
WxStepper::time_t	getSuggestedDt () const
const WmUnstructuredPatch &	get_patch () const
const WmSolver &	get_solver () const

Protected Attributes
WmBasisArraySet	_basis_set
std::unique_ptr< WmUDGGeometry >	_dg_geometry
real	_eps_rho
	The minimum allowable value of density.
real	_eps_p
	The minimum allowable value of internal energy, i.e.
bool	_include_gaussian_quad_nodes
	Whether the basis's GQ nodes should be included in the set of positivity nodes.
bool	_include_interior_lgl_nodes
	Whether the basis's interior LGL nodes should be included in the set of positivity nodes.
WxRange	_element_range
std::vector< real >	_rho_bar
std::vector< real >	_rho_ux_bar
std::vector< real >	_rho_uy_bar
std::vector< real >	_rho_uz_bar
std::vector< real >	_e_bar
Protected Attributes inherited from wxm::dfem::variable_adjuster::variable_adjuster_t
std::vector< size_t >	_var_idcs
std::vector< std::unique_ptr< WmApplication > >	_apps
bool	_grab_all = false
int	_priority
Protected Attributes inherited from WmPatchProcess
std::string	_ppName
WmPatchProcessor *	_parentTaskProcessor
const WmUnstructuredPatch *	_patch
std::vector< std::string >	_onSubdomains
WxStepper::time_t	_time
WxStepper::time_t	_dt
WxStepper::time_t	_suggested_dt
WxLogStream	_debStrm = WxLogger::get("warpx-root.console")->getDebugStream()
const WmSolverBase *	_parentSolver = nullptr

Additional Inherited Members
Public Types inherited from wxm::dfem::variable_adjuster::variable_adjuster_t
typedef wxm::temporal_solver::variables_type	variables_type

Constructor & Destructor Documentation

NDGEulerPositivityPreservingLimiter()

wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::NDGEulerPositivityPreservingLimiter ( )

default

Member Function Documentation

setup()

virtual void wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::setup ( const WxCryptSet &  wxc )

overridevirtual

Setup the spatial solver using the cryptset.

Parameters

wxc	The cryptset

Reimplemented from WmPatchProcess.

solve()

void wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::solve ( real  time, variables_type &  input  )

overridevirtual

Applies the limiter to input by modifying it in place.

Implements wxm::dfem::variable_adjuster::variable_adjuster_t.

Member Data Documentation

_basis_set

WmBasisArraySet wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_basis_set

protected

_dg_geometry

std::unique_ptr<WmUDGGeometry> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_dg_geometry

protected

_e_bar

std::vector<real> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_e_bar

protected

_element_range

WxRange wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_element_range

protected

_eps_p

real wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_eps_p

protected

The minimum allowable value of internal energy, i.e.

\(p / (gamma-1)\)

_eps_rho

real wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_eps_rho

protected

The minimum allowable value of density.

_include_gaussian_quad_nodes

bool wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_include_gaussian_quad_nodes

protected

Whether the basis's GQ nodes should be included in the set of positivity nodes.

This should be set to true if the simulation involves source terms evaluated at the GQ nodes.

_include_interior_lgl_nodes

bool wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_include_interior_lgl_nodes

protected

Whether the basis's interior LGL nodes should be included in the set of positivity nodes.

This should be set to true if the simulation involves source terms of variables at the standard LGL nodes.

Only needed in 2D and 3D. Has no effect in 1D since the standard positivity nodes are already precisely all the LGL nodes.

_rho_bar

std::vector<real> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_rho_bar

protected

_rho_ux_bar

std::vector<real> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_rho_ux_bar

protected

_rho_uy_bar

std::vector<real> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_rho_uy_bar

protected

_rho_uz_bar

std::vector<real> wxm::dfem::variable_adjuster::limiter::positivity_enforcing::NDGEulerPositivityPreservingLimiter::_rho_uz_bar

protected

---

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

• src/dfem/variable_adjusters/limiter/positivity_enforcing/ndg_euler_positivity_enforcing_limiter.h