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PatchAdvection Class Reference

An OldPatchGodunov-derived class for simple advection-diffusion problems. More...

#include <PatchAdvection.H>

Collaboration diagram for PatchAdvection:

[legend]List of all members.

Public Methods
	PatchAdvection ()
virtual OldPatchGodunov *	new_patchGodunov () const
	Factory method - this object is its own factory.
virtual Real	getMaxWaveSpeed (const FArrayBox &a_U, const Box &a_box)
	Compute the maximum wave speed.
virtual int	numConserved ()
	Number of conserved variables.
virtual Vector< string >	stateNames ()
	Names of the conserved variables.
virtual int	numFluxes ()
	Number of flux variables.
void	setAdvVelPtr (FluxBox *a_advVelPtr)
	set face-centered advection velocity for this patch
const FluxBox *	advectionVelPtr () const
	access face-centered advection velocities
void	setCellVelPtr (FArrayBox *a_cellVelPtr)
	set cell-centered velocity field for this patch
const FArrayBox *	cellVelPtr () const
	access cell-centered velicity field pointer
virtual void	setNumVar (int a_numVar)
	set the number of conserved (and primitive, and flux) variables
Protected Methods
virtual int	numPrimitives ()
	Number of primitive variables.
virtual int	numSlopes ()
	Number of primitive variables for which slopes are computed.
virtual void	consToPrim (FArrayBox &a_W, const FArrayBox &a_U, const Box &a_box)
	Compute the primitive variables from the conserved variables within a_box.
virtual void	primToCons (FArrayBox &a_U, const FArrayBox &a_W, const Box &a_box)
	Compute the conserved variables from the primitive variables within a_box.
virtual void	normalPred (FArrayBox &a_WMinus, FArrayBox &a_WPlus, const FArrayBox &a_W, const FArrayBox &a_dW, const Real &a_scale, const int &a_dir, const Box &a_box)
	Extrapolate the primitive variables to the cell faces.
virtual void	incrementWithSource (FArrayBox &a_W, const FArrayBox &a_S, const Real &a_scale, const Box &a_box)
	increment the primitive variables by a source term
virtual void	riemann (FArrayBox &a_F, const FArrayBox &a_WLeft, const FArrayBox &a_WRight, const int &a_dir, const Box &a_box)
	Compute a Riemann problem and generate fluxes at the faces.
virtual void	updatePrim (FArrayBox &a_WMinus, FArrayBox &a_WPlus, const FArrayBox &a_F, const Real &a_scale, const int &a_dir, const Box &a_box)
	Update the primitive variables using fluxes (of the conserved variables).
virtual void	updateCons (FArrayBox &a_U, const FArrayBox &a_F, const Real &a_scale, const int &a_dir, const Box &a_box)
	Update the conserved variable using fluxes and a scaling factor.
virtual void	finalUpdate (FArrayBox &a_U, const FArrayBox &a_F, const Real &a_scale, const int &a_dir, const Box &a_box)
	Perform final update of conserved variable using fluxes.
virtual Interval	velocityInterval ()
	Interval within the primitive variables corresponding to the velocities.
virtual int	pressureIndex ()
	Component index within the primitive variables of the pressure.
virtual int	bulkModulusIndex ()
	Component index within the primitive variables of the bulk modulus.
Protected Attributes
FluxBox *	m_advVelPtr
	face-centered advection velocity, set through the advVel() intervace
FArrayBox *	m_cellVelPtr
	cell-centered velocity field (centered at old time)
int	m_numCons
	number of conserved variables
int	m_numPrim
	number of primitive variables
int	m_numFlux
	number of fluxes
int	m_numSlope
	number of variabls in slope computation

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Detailed Description

An OldPatchGodunov-derived class for simple advection-diffusion problems.

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Constructor & Destructor Documentation

PatchAdvection::PatchAdvection (    )

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Member Function Documentation

const FluxBox* PatchAdvection::advectionVelPtr (    )  const

access face-centered advection velocities

virtual int PatchAdvection::bulkModulusIndex (    )  [protected, virtual]

Component index within the primitive variables of the bulk modulus. Return the component index withn the primitive variables for the bulk modulus. Used for slope flattening (slope computation) used as a normalization to measure shock strength.

const FArrayBox* PatchAdvection::cellVelPtr (    )  const

access cell-centered velicity field pointer

virtual void PatchAdvection::consToPrim (  FArrayBox &    a_W, const FArrayBox &    a_U, const Box &    a_box )  [protected, virtual]

Compute the primitive variables from the conserved variables within a_box.

virtual void PatchAdvection::finalUpdate (  FArrayBox &    a_U, const FArrayBox &    a_F, const Real &    a_scale, const int &    a_dir, const Box &    a_box )  [protected, virtual]

Perform final update of conserved variable using fluxes. Given the fluxes, a_F, in a direction, a_dir, and a scaling factor, a_scale, update the conserved variables, a_U, within a_box: a_U = a_U - a_scale * (a_F(a_dir,HiSide) - a_F(a_dir,LoSide))

virtual Real PatchAdvection::getMaxWaveSpeed (  const FArrayBox &    a_U, const Box &    a_box )  [virtual]

Compute the maximum wave speed.

virtual void PatchAdvection::incrementWithSource (  FArrayBox &    a_W, const FArrayBox &    a_S, const Real &    a_scale, const Box &    a_box )  [protected, virtual]

increment the primitive variables by a source term

virtual OldPatchGodunov* PatchAdvection::new_patchGodunov (    )  const [virtual]

Factory method - this object is its own factory. Return a pointer to new OldPatchGodunov object with its initial and boundary condtions, slope parameters, and artificial viscosity information defined.

virtual void PatchAdvection::normalPred (  FArrayBox &    a_WMinus, FArrayBox &    a_WPlus, const FArrayBox &    a_W, const FArrayBox &    a_dW, const Real &    a_scale, const int &    a_dir, const Box &    a_box )  [protected, virtual]

Extrapolate the primitive variables to the cell faces. Extrapolate the primitive variables, a_W, in the minus and plus direction, a_dir, using the slopes a_dW within a_box. See document for details.

virtual int PatchAdvection::numConserved (    )  [virtual]

Number of conserved variables. Return the number of conserved variables.

virtual int PatchAdvection::numFluxes (    )  [virtual]

Number of flux variables. Return the number of flux variables. This can be greater than the number of conserved variables if addition fluxes/face-centered quantities are computed.

virtual int PatchAdvection::numPrimitives (    )  [protected, virtual]

Number of primitive variables. Return the number of primitive variables. This may be greater than the number of conserved variables if derived/redundant quantities are also stored for convenience.

virtual int PatchAdvection::numSlopes (    )  [protected, virtual]

Number of primitive variables for which slopes are computed. Return the number of primitive variables for which slopes are computed. Only slopes corresponding to primitive variables in the interval 0 to numSlopes() - 1 are computed and only primitive variables in that interval are updated using the slopes.

virtual int PatchAdvection::pressureIndex (    )  [protected, virtual]

Component index within the primitive variables of the pressure. Return the component index withn the primitive variables for the pressure. Used for slope flattening (slope computation).

virtual void PatchAdvection::primToCons (  FArrayBox &    a_U, const FArrayBox &    a_W, const Box &    a_box )  [protected, virtual]

Compute the conserved variables from the primitive variables within a_box.

virtual void PatchAdvection::riemann (  FArrayBox &    a_F, const FArrayBox &    a_WLeft, const FArrayBox &    a_WRight, const int &    a_dir, const Box &    a_box )  [protected, virtual]

Compute a Riemann problem and generate fluxes at the faces. Given input left and right states in a direction, a_dir, compute a Riemann problem and generate fluxes at the faces within a_box.

void PatchAdvection::setAdvVelPtr (  FluxBox *    a_advVelPtr )

set face-centered advection velocity for this patch

void PatchAdvection::setCellVelPtr (  FArrayBox *    a_cellVelPtr )

set cell-centered velocity field for this patch

virtual void PatchAdvection::setNumVar (  int    a_numVar )  [virtual]

set the number of conserved (and primitive, and flux) variables Note that for this simple tracing, conservative == primitive

virtual Vector<string> PatchAdvection::stateNames (    )  [virtual]

Names of the conserved variables. Return the names of the conserved variables.

virtual void PatchAdvection::updateCons (  FArrayBox &    a_U, const FArrayBox &    a_F, const Real &    a_scale, const int &    a_dir, const Box &    a_box )  [protected, virtual]

Update the conserved variable using fluxes and a scaling factor. Given the fluxes, a_F, in a direction, a_dir, and a scaling factor, a_scale, update the conserved variables, a_U, within a_box: a_U = a_U - a_scale * (a_F(a_dir,HiSide) - a_F(a_dir,LoSide))

virtual void PatchAdvection::updatePrim (  FArrayBox &    a_WMinus, FArrayBox &    a_WPlus, const FArrayBox &    a_F, const Real &    a_scale, const int &    a_dir, const Box &    a_box )  [protected, virtual]

Update the primitive variables using fluxes (of the conserved variables). Given the fluxes, a_F, in a direction, a_dir, and a scaling factor, a_scale, update the primitive variables, a_WMinus and a_WPlus, within a_box. Note: The fluxes are fluxes of conserved variables.

virtual Interval PatchAdvection::velocityInterval (    )  [protected, virtual]

Interval within the primitive variables corresponding to the velocities. Return the interval of component indices within the primitive variable of the velocities. Used for slope flattening (slope computation) and computing the divergence of the velocity (artificial viscosity).

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Member Data Documentation

FluxBox* PatchAdvection::m_advVelPtr [protected]

face-centered advection velocity, set through the advVel() intervace

FArrayBox* PatchAdvection::m_cellVelPtr [protected]

cell-centered velocity field (centered at old time)

int PatchAdvection::m_numCons [protected]

number of conserved variables For this simple adection tracing, we assume that conservative and primitive are the same

int PatchAdvection::m_numFlux [protected]

number of fluxes

int PatchAdvection::m_numPrim [protected]

number of primitive variables

int PatchAdvection::m_numSlope [protected]

number of variabls in slope computation

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

• PatchAdvection.H

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