Derived class from Fmv0, implementing Fixed Mesh Refinement (FMR). More...

#include <cosmos_d.h>

Inheritance diagram for Fmv1:

Collaboration diagram for Fmv1:

Public Member Functions
	Fmv1 (int laymax_in, int jbs_in, int kbs_in, int lbs_in, double alp_fmr_in)
	Constructor for the Fmv1 class (FMR manager).

virtual	~Fmv1 ()
	Destructor for the Fmv1 class. Deallocates levels.

void	evolution (double dt, double t)
	Performs one full evolution step across all refinement levels.

void	check_refinement_trigger (double t)
	Checks if new refinement levels need to be created based on triggers.

void	create_refinement_level (int level)
	Creates a new refinement level.

void	prolongate (int coarse_level, int fine_level)
	Interpolates data from a coarser level to a finer level (Prolongation).

void	restrict (int fine_level, int coarse_level)
	Averages data from a finer level to a coarser level (Restriction).

Public Member Functions inherited from Fmv0
	Fmv0 (int tabs, int jupper, int jlower, int kupper, int klower, int lupper, int llower, double xupper, double xlower, double yupper, double ylower, double zupper, double zlower, double cfl_in, double etaa_in, double etab_in, double etabb_in, double KOep_in, int exg_in, double Hb_in, double fluidw_in, double kap_MUSCL_in, double b_minmod_in, double amp_in)
	Constructor for the Fmv0 class.

virtual	~Fmv0 ()
	Destructor for the Fmv0 class. Frees allocated memory.

virtual void	rhs (double dt, double t)
	Calculates the right-hand sides (RHS) of the BSSN evolution equations.

void	KOdiss (double *q, double *f)
	Applies Kreiss-Oliger numerical dissipation to evolved variables.

double	funcf (double x)
	Coordinate mapping function from logical coordinate (e.g., j*dx) to physical coordinate.

double	df (double x)
	First derivative of the coordinate mapping function funcf.

double	ddf (double x)
	Second derivative of the coordinate mapping function funcf.

double	dddf (double x)
	Third derivative of the coordinate mapping function funcf.

int	get_tab () const
	Get the number of buffer zones.

double	get_cfl () const
	Get the CFL factor.

bool	get_fluidevo () const
	Check if fluid evolution is enabled (based on fluidw perhaps).

int &	set_bflag (int l, int k, int j)
	Set the boundary flag at a specific grid point. Returns a reference.

int	get_bflag (int l, int k, int j) const
	Get the boundary flag at a specific grid point.

double ***	matrix (long nrl, long nrh, long ncl, long nch, long ndl, long ndh)
	Allocates memory for a 3D grid function array.

void	free_matrix (double ***m, long nrl, long nrh, long ncl, long nch, long ndl, long ndh)
	Frees memory allocated by matrix().

Public Attributes
int	laymax
	Maximum number of refinement levels.

Fmv0 **	fmv
	Array of pointers to Fmv0/Fmv objects representing each refinement level.

int *	jbs
	Array storing x-boundary indices for refinement regions on coarser levels.

int *	kbs
	Array storing y-boundary indices for refinement regions on coarser levels.

int *	lbs
	Array storing z-boundary indices for refinement regions on coarser levels.

double *	alp_fmr
	Array storing lapse threshold values for triggering refinement.

Public Attributes inherited from Fmv0
int	tab
	Number of buffer/ghost zones.

int	jmin
	Minimum physical grid index in x.

int	jmax
	Maximum physical grid index in x.

double	xmin
	Minimum coordinate value in x.

double	xmax
	Maximum coordinate value in x.

double	dx
	Grid spacing in x (uniform logical grid).

double	cfl
	CFL factor for time step calculation.

double	etaa
	Gauge parameter eta for 1+log lapse.

double	etab
	Gauge parameter eta for Gamma-driver shift.

double	etabb
	Gauge parameter eta_b (or similar) for Gamma-driver shift.

double	KOep
	Kreiss-Oliger dissipation coefficient epsilon.

double	Hb
	Initial Hubble parameter.

double	fluidw
	Fluid equation of state parameter w (if fluid enabled).

double	kap_MUSCL
	MUSCL reconstruction parameter kappa (if fluid enabled).

double	b_minmod
	Minmod limiter parameter b (if fluid enabled).

int	exg
	Grid size for excision region (if enabled).

double	tmax
	Maximum simulation time.

double	amp
	Grid stretching parameter for coordinate mapping.

double ***	alp
	Pointer to the lapse function grid data.

double ***	betax
	Pointer to the shift vector component beta^x grid data.

Additional Inherited Members
Protected Member Functions inherited from Fmv0
double	D1x (double ***f, int l, int k, int j)
	Calculates spatial derivatives (e.g., first derivative in x).

void	calculate_christoffel (int l, int k, int j)
	Calculates Christoffel symbols or connection functions.

void	calculate_ricci (int l, int k, int j)
	Calculates Ricci tensor components.

void	calculate_matter_sources (int l, int k, int j)
	Calculates matter source terms (Stress-Energy Tensor T_munu).

Detailed Description

Derived class from Fmv0, implementing Fixed Mesh Refinement (FMR).

Manages multiple refinement levels, interpolation between levels, and potentially modified evolution steps considering refinement boundaries.

Note: This class structure might be significantly more complex depending on the FMR implementation details (e.g., using pointers to Fmv0/Fmv objects for each level). The documentation below is a basic placeholder.

Constructor & Destructor Documentation

◆ Fmv1()

Fmv1::Fmv1	(	int	laymax_in,
		int *	jbs_in,
		int *	kbs_in,
		int *	lbs_in,
		double *	alp_fmr_in )

Constructor for the Fmv1 class (FMR manager).

Parameters

	laymax_in	Maximum number of refinement levels.
	jbs_in	Array of x-boundary indices.
	kbs_in	Array of y-boundary indices.
	lbs_in	Array of z-boundary indices.
	alp_fmr_in	Array of lapse trigger thresholds.
[in]	base_params	Parameters needed to construct the base level (level 0), likely similar to Fmv0/Fmv constructor.

◆ ~Fmv1()

virtual Fmv1::~Fmv1 ( )

virtual

Destructor for the Fmv1 class. Deallocates levels.

Member Function Documentation

◆ check_refinement_trigger()

void Fmv1::check_refinement_trigger ( double t )

Checks if new refinement levels need to be created based on triggers.

Parameters

t	Current simulation time.

◆ create_refinement_level()

void Fmv1::create_refinement_level ( int level )

Creates a new refinement level.

Parameters

level Index of the new level to create.

◆ evolution()

void Fmv1::evolution	(	double	dt,
		double	t )

Performs one full evolution step across all refinement levels.

Handles Runge-Kutta steps, boundary conditions, inter-level interpolation (prolongation/restriction), and potentially checks for creating new refinement levels.

Parameters

dt	Current time step size for the finest level.
t	Current simulation time.

◆ prolongate()

void Fmv1::prolongate	(	int	coarse_level,
		int	fine_level )

Interpolates data from a coarser level to a finer level (Prolongation).

Parameters

coarse_level	Index of the coarser level.
fine_level	Index of the finer level.

◆ restrict()

void Fmv1::restrict	(	int	fine_level,
		int	coarse_level )

Averages data from a finer level to a coarser level (Restriction).

Parameters

fine_level	Index of the finer level.
coarse_level	Index of the coarser level.

Member Data Documentation

◆ alp_fmr

double* Fmv1::alp_fmr

Array storing lapse threshold values for triggering refinement.

◆ fmv

Fmv0** Fmv1::fmv

Array of pointers to Fmv0/Fmv objects representing each refinement level.

◆ jbs

int* Fmv1::jbs

Array storing x-boundary indices for refinement regions on coarser levels.

◆ kbs

int* Fmv1::kbs

Array storing y-boundary indices for refinement regions on coarser levels.

◆ laymax

int Fmv1::laymax

Maximum number of refinement levels.

◆ lbs

int* Fmv1::lbs

Array storing z-boundary indices for refinement regions on coarser levels.

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

cosmos_d.h

Public Member Functions

Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ Fmv1()

◆ ~Fmv1()

Member Function Documentation

◆ check_refinement_trigger()

◆ create_refinement_level()

◆ evolution()

◆ prolongate()

◆ restrict()

Member Data Documentation

◆ alp_fmr

◆ fmv

◆ jbs

◆ kbs

◆ laymax

◆ lbs