ACFDTD22 Class Reference

Simulate the propagation of the acoustic wave in lossy media using the finite-difference time-domain method. More...

#include <ACFDTD22.hpp>

Inheritance diagram for ACFDTD22:

Public Member Functions
	ACFDTD22 ()
	ACFDTD22 (const double frequency, const double cfl_number)
virtual void	calcCoefficients (const Model &model, const Grid &grid)
	Calculate the coefficients of the FDTD update equations.
virtual void	execute (const Grid &grid, const CartPosition &sig_loc, const Function *signal, const double time_span, const std::vector< Sensor * > &sen_vec, const unsigned negY=BC_PRESS, const unsigned posY=BC_PRESS, const unsigned negZ=BC_PRESS, const unsigned posZ=BC_PRESS)
	Engine to handle the hard acoustic pressure source.
virtual void	execute (const Model &model, const Grid &grid, const HardPlaneWaveSource &source, const double time_span, const std::vector< Sensor * > &sen_vec, const unsigned negY=BC_PRESS, const unsigned posY=BC_PRESS, const unsigned negZ=BC_PRESS, const unsigned posZ=BC_PRESS)
	Engine to handle the hard plane wave source.
virtual double	getDeltaT () const
virtual unsigned	getnTimeSteps () const
virtual	~ACFDTD22 ()

Protected Attributes
UniqueCoefficientContainer	container
	populated in ACFDTD22::calcCoefficients()
std::string	sim_name
double	f_c
	Central frequency.
double	S
	CFL number.
double	dt
	temporal step.
unsigned	nTimeSteps
	Initialized in ACFDTD22::execute().

Private Member Functions
void	parseModel (const Model &model, const Grid &grid)
	Update the cofficients pra, prb, prc, prd, pred and uya, uyb, uyc, uza, uzb, uzc.

Private Attributes
unsigned short **	bya
unsigned short **	byb
unsigned short **	bza
unsigned short **	bzb
unsigned short **	pra
unsigned short **	prb
unsigned short **	prc
unsigned short **	prd
unsigned short **	pre
unsigned short **	aya
unsigned short **	ayb
unsigned short **	aza
unsigned short **	azb
unsigned short **	uya
unsigned short **	uyb
unsigned short **	uyc
unsigned short **	uza
unsigned short **	uzb
unsigned short **	uzc

Detailed Description

Simulate the propagation of the acoustic wave in lossy media using the finite-difference time-domain method.

Constructor & Destructor Documentation

ACFDTD22::ACFDTD22

(

)

ACFDTD22::ACFDTD22	(	const double	frequency,
		const double	cfl_number
	)

ACFDTD22::~ACFDTD22 ( )

virtual

Member Function Documentation

void ACFDTD22::calcCoefficients ( const Model &  model, const Grid &  grid  )

virtual

Calculate the coefficients of the FDTD update equations.

If the Model contains the PML around its boundaries, this function also calculates the coefficients in the PML region. See notes on 2012-05-14 for the expression of the coefficients.

Reimplemented in ACFDTD22MemEfficient.

virtual void ACFDTD22::execute ( const Grid &  grid, const CartPosition &  sig_loc, const Function *  signal, const double  time_span, const std::vector< Sensor * > &  sen_vec, const unsigned  negY = BC_PRESS, const unsigned  posY = BC_PRESS, const unsigned  negZ = BC_PRESS, const unsigned  posZ = BC_PRESS  )

virtual

Engine to handle the hard acoustic pressure source.

Reimplemented in ACFDTD22MemEfficient.

virtual void ACFDTD22::execute ( const Model &  model, const Grid &  grid, const HardPlaneWaveSource &  source, const double  time_span, const std::vector< Sensor * > &  sen_vec, const unsigned  negY = BC_PRESS, const unsigned  posY = BC_PRESS, const unsigned  negZ = BC_PRESS, const unsigned  posZ = BC_PRESS  )

virtual

Engine to handle the hard plane wave source.

On the boundary conditions, if BC_PRESS is specified on a boundary, the acoustic pressure is set to 0 on that boundary.

If BC_RIGID is specified on a boundary, the particle velocity normal to the boundary is set to 0.

If BC_PERIODIC is specifified on a boundary, then it is assumed that BC_PERIODIC is also specified on the opposite boundary. The values of the acoustic pressure on the positive boundary are copied to the values of the acoustic pressure on the negative boundary to impose the periodicity.

Reimplemented in ACFDTD22MemEfficient.

double ACFDTD22::getDeltaT ( ) const

virtual

unsigned ACFDTD22::getnTimeSteps ( ) const

virtual

void ACFDTD22::parseModel ( const Model &  model, const Grid &  grid  )

private

Update the cofficients pra, prb, prc, prd, pred and uya, uyb, uyc, uza, uzb, uzc.

Member Data Documentation

unsigned short** ACFDTD22::aya

private

unsigned short ** ACFDTD22::ayb

private

unsigned short ** ACFDTD22::aza

private

unsigned short ** ACFDTD22::azb

private

unsigned short** ACFDTD22::bya

private

unsigned short ** ACFDTD22::byb

private

unsigned short ** ACFDTD22::bza

private

unsigned short ** ACFDTD22::bzb

private

UniqueCoefficientContainer ACFDTD22::container

protected

populated in ACFDTD22::calcCoefficients()

double ACFDTD22::dt

protected

temporal step.

Initialized in calcCoefficient().

double ACFDTD22::f_c

protected

Central frequency.

unsigned ACFDTD22::nTimeSteps

protected

Initialized in ACFDTD22::execute().

unsigned short** ACFDTD22::pra

private

unsigned short ** ACFDTD22::prb

private

unsigned short ** ACFDTD22::prc

private

unsigned short ** ACFDTD22::prd

private

unsigned short ** ACFDTD22::pre

private

double ACFDTD22::S

protected

CFL number.

std::string ACFDTD22::sim_name

protected

unsigned short** ACFDTD22::uya

private

unsigned short ** ACFDTD22::uyb

private

unsigned short ** ACFDTD22::uyc

private

unsigned short ** ACFDTD22::uza

private

unsigned short ** ACFDTD22::uzb

private

unsigned short ** ACFDTD22::uzc

private

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

• include/ACFDTD22.hpp
• src/ACFDTD22.cpp