An implementation of SingleBoundaryBase for Neumann BC. More...

#include <singleboundaryneumann.h>

Inheritance diagram for petibm::boundary::SingleBoundaryNeumann:

Public Member Functions
	SingleBoundaryNeumann (const type::Mesh &mesh, const type::BCLoc &loc, const type::Field &field, const PetscReal &value)
	Constructor. More...

virtual	~SingleBoundaryNeumann ()=default
	Default destructor. More...

virtual PetscErrorCode	destroy ()
	Manually destroy data. More...

PetscErrorCode	setGhostICs (const Vec &vec)
	Set up the initial values of the ghost points. More...

PetscErrorCode	updateEqs (const Vec &vec, const PetscReal &dt)
	Modify the coefficients in the equation of ghost points. More...

PetscErrorCode	updateGhostValues (const Vec &vec)
	Update the values of ghost points using the equation. More...

PetscErrorCode	copyValues2LocalVec (Vec &lclVec)
	Copy the values of ghost points to a local Vec. More...

Public Attributes
PetscInt	dim
	Dimension. More...

type::BCLoc	loc
	The location of this boundary. More...

type::Field	field
	The field of which the ghost points represent. More...

type::BCType	type
	The type of boundary conditions. More...

PetscReal	value
	A constant value representing BC value. More...

PetscReal	normal
	The direction of normal vector. More...

type::GhostPointsList	points
	The list of ghost points on this boundary and at this field. More...

PetscBool	onThisProc
	Indicate if this process holds part of this boundary. More...

Protected Member Functions
virtual PetscErrorCode	setGhostICsKernel (const PetscReal &targetValue, type::GhostPointInfo &p)
	The underlying kernel for setting initial values and equations. More...

virtual PetscErrorCode	updateEqsKernel (const PetscReal &targetValue, const PetscReal &dt, type::GhostPointInfo &p)
	Underlying kernel for updating the coefficients of the equation. More...

PetscErrorCode	init (const type::Mesh &mesh, const type::BCLoc &loc, const type::Field &field, const type::BCType &type, const PetscReal &bcValue)
	Underlying initialization function. More...

Protected Attributes
MPI_Comm	comm
	MPI communicator. More...

PetscMPIInt	mpiSize
	The size of the MPI communicator. More...

PetscMPIInt	mpiRank
	The rank of this process. More...

type::Mesh	mesh
	The corresponding Mesh object. More...

Detailed Description

An implementation of SingleBoundaryBase for Neumann BC.

See also: Boundaries and boundary conditions, petibm::type::SingleBoundary, petibm::boundary::createSingleBoundary

Definition at line 22 of file singleboundaryneumann.h.

Constructor & Destructor Documentation

◆ SingleBoundaryNeumann()

petibm::boundary::SingleBoundaryNeumann::SingleBoundaryNeumann	(	const type::Mesh &	mesh,
		const type::BCLoc &	loc,
		const type::Field &	field,
		const PetscReal &	value
	)

Constructor.

Parameters

mesh	[in] a Mesh instance.
loc	[in] the location of the target boundary.
field	[in] the target field.
value	[in] BC value.

Definition at line 14 of file singleboundaryneumann.cpp.

◆ ~SingleBoundaryNeumann()

virtual petibm::boundary::SingleBoundaryNeumann::~SingleBoundaryNeumann ( )

virtualdefault

Default destructor.

Member Function Documentation

◆ copyValues2LocalVec()

PetscErrorCode petibm::boundary::SingleBoundaryBase::copyValues2LocalVec ( Vec & lclVec )

inherited

Copy the values of ghost points to a local Vec.

Parameters

lclVec [in, out] a local Vec with memory allocations for ghost points.

Returns: PetscErrorCode.

In PetIBM, we use a global packed Vec for velocity fields. But in some occasions, we may need local Vecs that have ghost points in them. So we have to copy the ghost values from this instance to the local Vecs.

Definition at line 165 of file singleboundarybase.cpp.

◆ destroy()

PetscErrorCode petibm::boundary::SingleBoundaryBase::destroy ( )

virtualinherited

Manually destroy data.

Returns: PetscErrorCode.

Reimplemented in petibm::boundary::SingleBoundaryConvective.

Definition at line 37 of file singleboundarybase.cpp.

◆ init()

PetscErrorCode petibm::boundary::SingleBoundaryBase::init	(	const type::Mesh &	mesh,
		const type::BCLoc &	loc,
		const type::Field &	field,
		const type::BCType &	type,
		const PetscReal &	bcValue
	)

protectedinherited

Underlying initialization function.

Parameters

mesh	[in] a Mesh instance.
loc	[in] the location of the target boundary.
field	[in] the target field.
type	[in] the type of BC.
bcValue	[in] BC value.

Returns: PetscErrorCode.

Definition at line 55 of file singleboundarybase.cpp.

◆ setGhostICs()

PetscErrorCode petibm::boundary::SingleBoundaryBase::setGhostICs ( const Vec & vec )

inherited

Set up the initial values of the ghost points.

Parameters

vec	[in] a packed solution Vec containing initial values.

Returns: PetscErrorCode.

Definition at line 107 of file singleboundarybase.cpp.

◆ setGhostICsKernel()

PetscErrorCode petibm::boundary::SingleBoundaryNeumann::setGhostICsKernel	(	const PetscReal &	targetValue,
		type::GhostPointInfo &	p
	)

protectedvirtual

The underlying kernel for setting initial values and equations.

Parameters

targetValue	[in] the value of the corresponding boundary point.
p	[in, out] the target ghost point.

Returns: PetscErrorCode.

Implements petibm::boundary::SingleBoundaryBase.

Definition at line 22 of file singleboundaryneumann.cpp.

◆ updateEqs()

PetscErrorCode petibm::boundary::SingleBoundaryBase::updateEqs	(	const Vec &	vec,
		const PetscReal &	dt
	)

inherited

Modify the coefficients in the equation of ghost points.

Parameters

vec	[in] a packed solution Vec at current time step.
dt	[in] a PetscReal representing time-step size.

Returns: PetscErrorCode.

The equation of ghost points means the relationship between boundary points and ghost points. The equation has a form u_ghost = a0 * u_boundary + a1. This function changes a1 and a0 according to the type of BC.

Definition at line 126 of file singleboundarybase.cpp.

◆ updateEqsKernel()

PetscErrorCode petibm::boundary::SingleBoundaryNeumann::updateEqsKernel	(	const PetscReal &	targetValue,
		const PetscReal &	dt,
		type::GhostPointInfo &	p
	)

protectedvirtual

Underlying kernel for updating the coefficients of the equation.

Parameters

targetValue	[in] the value of corresponding boundary point.
dt	[in] the size of a time step.
p	[in, out] the target ghost point.

Returns: PetscErrorCode.

Implements petibm::boundary::SingleBoundaryBase.

Definition at line 35 of file singleboundaryneumann.cpp.

◆ updateGhostValues()

PetscErrorCode petibm::boundary::SingleBoundaryBase::updateGhostValues ( const Vec & vec )

inherited

Update the values of ghost points using the equation.

Parameters

vec	[in] a packed solution Vec at current time step.

Returns: PetscErrorCode.

Definition at line 146 of file singleboundarybase.cpp.

Member Data Documentation

◆ comm

MPI_Comm petibm::boundary::SingleBoundaryBase::comm

protectedinherited

MPI communicator.

Definition at line 154 of file singleboundary.h.

◆ dim

PetscInt petibm::boundary::SingleBoundaryBase::dim

inherited

Dimension.

Definition at line 34 of file singleboundary.h.

◆ field

type::Field petibm::boundary::SingleBoundaryBase::field

inherited

The field of which the ghost points represent.

Definition at line 40 of file singleboundary.h.

◆ loc

type::BCLoc petibm::boundary::SingleBoundaryBase::loc

inherited

The location of this boundary.

Definition at line 37 of file singleboundary.h.

◆ mesh

type::Mesh petibm::boundary::SingleBoundaryBase::mesh

protectedinherited

The corresponding Mesh object.

Definition at line 163 of file singleboundary.h.

◆ mpiRank

PetscMPIInt petibm::boundary::SingleBoundaryBase::mpiRank

protectedinherited

The rank of this process.

Definition at line 160 of file singleboundary.h.

◆ mpiSize

PetscMPIInt petibm::boundary::SingleBoundaryBase::mpiSize

protectedinherited

The size of the MPI communicator.

Definition at line 157 of file singleboundary.h.

◆ normal

PetscReal petibm::boundary::SingleBoundaryBase::normal

inherited

The direction of normal vector.

Definition at line 49 of file singleboundary.h.

◆ onThisProc

PetscBool petibm::boundary::SingleBoundaryBase::onThisProc

inherited

Indicate if this process holds part of this boundary.

Definition at line 55 of file singleboundary.h.

◆ points

type::GhostPointsList petibm::boundary::SingleBoundaryBase::points

inherited

The list of ghost points on this boundary and at this field.

Definition at line 52 of file singleboundary.h.

◆ type

type::BCType petibm::boundary::SingleBoundaryBase::type

inherited

The type of boundary conditions.

Definition at line 43 of file singleboundary.h.

◆ value

PetscReal petibm::boundary::SingleBoundaryBase::value

inherited

A constant value representing BC value.

Definition at line 46 of file singleboundary.h.

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

include/petibm/singleboundaryneumann.h
src/boundary/singleboundaryneumann.cpp

Public Member Functions

Public Attributes

Protected Member Functions

Protected Attributes

Detailed Description

Constructor & Destructor Documentation

◆ SingleBoundaryNeumann()

◆ ~SingleBoundaryNeumann()

Member Function Documentation

◆ copyValues2LocalVec()

◆ destroy()

◆ init()

◆ setGhostICs()

◆ setGhostICsKernel()

◆ updateEqs()

◆ updateEqsKernel()

◆ updateGhostValues()

Member Data Documentation

◆ comm

◆ dim

◆ field

◆ loc

◆ mesh

◆ mpiRank

◆ mpiSize

◆ normal

◆ onThisProc

◆ points

◆ type

◆ value