Class INSIntermediateVelocityBcCoef is a concrete SAMRAI::solv::RobinBcCoefStrategy that is used to specify boundary conditions for the intermediate velocity solve embedded in a projection method or in a block preconditioner for the incompressible Navier-Stokes equations. More...

#include <ibamr/INSIntermediateVelocityBcCoef.h>

Inheritance diagram for IBAMR::INSIntermediateVelocityBcCoef:

[legend]

Public Member Functions
	INSIntermediateVelocityBcCoef (int comp_idx, const std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * > &bc_coefs, bool homogeneous_bc=false)
	Constructor. More...

	~INSIntermediateVelocityBcCoef ()=default
	Destructor. More...

void	setPhysicalBcCoefs (const std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * > &bc_coefs)
	Set the SAMRAI::solv::RobinBcCoefStrategy objects used to specify physical boundary conditions. More...

void	setSolutionTime (double solution_time)
	Set the time at which the solution is to be evaluated. More...

void	setTimeInterval (double current_time, double new_time)
	Set the current time interval. More...

Extended SAMRAI::solv::RobinBcCoefStrategy interface.
void	setTargetPatchDataIndex (int target_idx) override
	Set the target data index. More...

void	clearTargetPatchDataIndex () override
	Clear the target data index. More...

void	setHomogeneousBc (bool homogeneous_bc) override
	Set whether the class is filling homogeneous or inhomogeneous boundary conditions. More...

Implementation of SAMRAI::solv::RobinBcCoefStrategy interface.
const int	d_comp_idx

std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * >	d_bc_coefs

void	setBcCoefs (SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &acoef_data, SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &bcoef_data, SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &gcoef_data, const SAMRAI::tbox::Pointer< SAMRAI::hier::Variable< NDIM > > &variable, const SAMRAI::hier::Patch< NDIM > &patch, const SAMRAI::hier::BoundaryBox< NDIM > &bdry_box, double fill_time=0.0) const override
	Function to fill arrays of Robin boundary condition coefficients at a patch boundary. More...

SAMRAI::hier::IntVector< NDIM >	numberOfExtensionsFillable () const override

	INSIntermediateVelocityBcCoef ()=delete
	Default constructor. More...

	INSIntermediateVelocityBcCoef (const INSIntermediateVelocityBcCoef &from)=delete
	Copy constructor. More...

INSIntermediateVelocityBcCoef &	operator= (const INSIntermediateVelocityBcCoef &that)=delete
	Assignment operator. More...

Detailed Description

This class interprets pure Dirichlet boundary conditions as prescribed velocity boundary conditions, whereas pure Neumann boundary conditions are interpreted as prescribed traction (stress) boundary conditions. These are translated into Dirichlet and Neumann boundary conditions, respectively, for the intermediate velocity.

Constructor & Destructor Documentation

◆ INSIntermediateVelocityBcCoef() [1/3]

IBAMR::INSIntermediateVelocityBcCoef::INSIntermediateVelocityBcCoef	(	int	comp_idx,
		const std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * > &	bc_coefs,
		bool	homogeneous_bc = `false`
	)

Parameters

comp_idx	Component of the velocity which this boundary condition specification is to operate on
bc_coefs	IBTK::Vector of boundary condition specification objects
homogeneous_bc	Whether to employ homogeneous (as opposed to inhomogeneous) boundary conditions

Note: Precisely NDIM boundary condition objects must be provided to the class constructor.

◆ ~INSIntermediateVelocityBcCoef()

IBAMR::INSIntermediateVelocityBcCoef::~INSIntermediateVelocityBcCoef ( )

default

◆ INSIntermediateVelocityBcCoef() [2/3]

IBAMR::INSIntermediateVelocityBcCoef::INSIntermediateVelocityBcCoef ( )

privatedelete

Note: This constructor is not implemented and should not be used.

◆ INSIntermediateVelocityBcCoef() [3/3]

IBAMR::INSIntermediateVelocityBcCoef::INSIntermediateVelocityBcCoef ( const INSIntermediateVelocityBcCoef & from )

privatedelete

Note: This constructor is not implemented and should not be used.

Parameters

from	The value to copy to this object.

Member Function Documentation

◆ setPhysicalBcCoefs()

void IBAMR::INSIntermediateVelocityBcCoef::setPhysicalBcCoefs ( const std::vector< SAMRAI::solv::RobinBcCoefStrategy< NDIM > * > & bc_coefs )

Parameters

bc_coefs IBTK::Vector of boundary condition specification objects

◆ setSolutionTime()

void IBAMR::INSIntermediateVelocityBcCoef::setSolutionTime ( double solution_time )

◆ setTimeInterval()

void IBAMR::INSIntermediateVelocityBcCoef::setTimeInterval	(	double	current_time,
		double	new_time
	)

◆ setTargetPatchDataIndex()

void IBAMR::INSIntermediateVelocityBcCoef::setTargetPatchDataIndex ( int target_idx )

overridevirtual

Reimplemented from IBTK::ExtendedRobinBcCoefStrategy.

◆ clearTargetPatchDataIndex()

void IBAMR::INSIntermediateVelocityBcCoef::clearTargetPatchDataIndex ( )

overridevirtual

Reimplemented from IBTK::ExtendedRobinBcCoefStrategy.

◆ setHomogeneousBc()

void IBAMR::INSIntermediateVelocityBcCoef::setHomogeneousBc ( bool homogeneous_bc )

overridevirtual

Reimplemented from IBTK::ExtendedRobinBcCoefStrategy.

◆ setBcCoefs() [1/2]

void IBAMR::INSIntermediateVelocityBcCoef::setBcCoefs	(	SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &	acoef_data,
		SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &	bcoef_data,
		SAMRAI::tbox::Pointer< SAMRAI::pdat::ArrayData< NDIM, double > > &	gcoef_data,
		const SAMRAI::tbox::Pointer< SAMRAI::hier::Variable< NDIM > > &	variable,
		const SAMRAI::hier::Patch< NDIM > &	patch,
		const SAMRAI::hier::BoundaryBox< NDIM > &	bdry_box,
		double	fill_time = `0.0`
	)		const

override

Note: In the original SAMRAI::solv::RobinBcCoefStrategy interface, it was assumed that \( b = (1-a) \). In the new interface, \(a\) and \(b\) are independent.

See also: SAMRAI::solv::RobinBcCoefStrategy::setBcCoefs()

Parameters

acoef_data	Boundary coefficient data. The array will have been defined to include index range for corresponding to the boundary box bdry_box and appropriate for the alignment of the given variable. If this is a null pointer, then the calling function is not interested in a, and you can disregard it.
bcoef_data	Boundary coefficient data. This array is exactly like acoef_data, except that it is to be filled with the b coefficient.
gcoef_data	Boundary coefficient data. This array is exactly like acoef_data, except that it is to be filled with the g coefficient.
variable	Variable to set the coefficients for. If implemented for multiple variables, this parameter can be used to determine which variable's coefficients are being sought.
patch	Patch requiring bc coefficients.
bdry_box	Boundary box showing where on the boundary the coefficient data is needed.
fill_time	Solution time corresponding to filling, for use when coefficients are time-dependent.

◆ numberOfExtensionsFillable() [1/2]

SAMRAI::hier::IntVector<NDIM> IBAMR::INSIntermediateVelocityBcCoef::numberOfExtensionsFillable ( ) const

override

◆ operator=()

INSIntermediateVelocityBcCoef& IBAMR::INSIntermediateVelocityBcCoef::operator= ( const INSIntermediateVelocityBcCoef & that )

privatedelete

Note: This operator is not implemented and should not be used.

Parameters

that	The value to assign to this object.

Returns: A reference to this object.

◆ setBcCoefs() [2/2]

virtual void SAMRAI::solv::RobinBcCoefStrategy< DIM >::setBcCoefs	(	tbox::Pointer< pdat::ArrayData< DIM, double > > &	acoef_data,
		tbox::Pointer< pdat::ArrayData< DIM, double > > &	bcoef_data,
		tbox::Pointer< pdat::ArrayData< DIM, double > > &	gcoef_data,
		const tbox::Pointer< hier::Variable< DIM > > &	variable,
		const hier::Patch< DIM > &	patch,
		const hier::BoundaryBox< DIM > &	bdry_box,
		const double	fill_time = `0.0`
	)		const

pure virtualinherited

This class specifies the Robin boundary condition coefficients at discrete locations on the patch boundary. Though these locations are defined by boundary box object, they do not necessarily coincide with the centers of the cells referred to by those boxes. These locations typically coincide with the nodes or face centers which do lie on the patch boundary. Accordingly, you use this function to provide the boundary coefficients at those locations by filling an array at indices corresponding to those locations.

When setting the values of the boundary condition coefficients it is useful to note that for any cell (i,j,k), the indices of the sides, edges and nodes are easily determined. The index on the lower side of the cell is the same as the index of the cell, whereas the index on the upper side of the cell has the next higher value. In 2D, the cell and its surrounding nodes and faces has the following indices:

*
*       (i,j+1)----(i,j+1)---(i+1,j+1)
*          |                     |
*          |                     |
*          |                     |
*          |                     |
*        (i,j)      (i,j)     (i+1,j)
*          |                     |
*          |                     |
*          |                     |
*          |                     |
*        (i,j)------(i,j)-----(i+1,j)
*
*

Once this is understood, translation between the index in the boundary box index space to the index of things on the boundary is simple.

The boundary condition coefficients should be placed in the pdat::ArrayData<DIM> objects, acoef_data and gcoef_data (see argument list), which are dimensioned to contain the indices of the points alligned with variable and lying on the the boundary defined by bdry_box.

This function is only used with type-1 boundary boxes, such as faces in 3D. Other types of boundaries do not have a well-defined surface normal.

The parameter variable is passed through to tell the implementation of this function what variable to set the coefficients for. You may wish to ignore it if your implementation is intended for a specific variable.

Parameters

acoef_data	boundary coefficient data. The array will have been defined to include index range for corresponding to the boundary box `bdry_box` and appropriate for the alignment of the given variable. If this is a null pointer, then the calling function is not interested in a, and you can disregard it.
bcoef_data	boundary coefficient data. This array is exactly like `acoef_data`, except that it is to be filled with the b coefficient.
gcoef_data	boundary coefficient data. This array is exactly like `acoef_data`, except that it is to be filled with the g coefficient.
variable	variable to set the coefficients for. If implemented for multiple variables, this parameter can be used to determine which variable's coefficients are being sought.
patch	patch requiring bc coefficients
bdry_box	boundary box showing where on the boundary the coefficient data is needed.
fill_time	solution time corresponding to filling, for use when coefficients are time-dependent.

◆ numberOfExtensionsFillable() [2/2]

virtual hier::IntVector<DIM> SAMRAI::solv::RobinBcCoefStrategy< DIM >::numberOfExtensionsFillable ( ) const

pure virtualinherited

Member Data Documentation

◆ d_comp_idx

const int IBAMR::INSIntermediateVelocityBcCoef::d_comp_idx

private

◆ d_bc_coefs

std::vector<SAMRAI::solv::RobinBcCoefStrategy<NDIM>*> IBAMR::INSIntermediateVelocityBcCoef::d_bc_coefs

private

◆ d_target_data_idx

int IBTK::ExtendedRobinBcCoefStrategy::d_target_data_idx = IBTK::invalid_index

protectedinherited

◆ d_homogeneous_bc

bool IBTK::ExtendedRobinBcCoefStrategy::d_homogeneous_bc = false

protectedinherited

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

include/ibamr/INSIntermediateVelocityBcCoef.h

Public Member Functions

Implementation of SAMRAI::solv::RobinBcCoefStrategy interface.

Detailed Description

Constructor & Destructor Documentation

◆ INSIntermediateVelocityBcCoef() [1/3]

◆ ~INSIntermediateVelocityBcCoef()

◆ INSIntermediateVelocityBcCoef() [2/3]

◆ INSIntermediateVelocityBcCoef() [3/3]

Member Function Documentation

◆ setPhysicalBcCoefs()

◆ setSolutionTime()

◆ setTimeInterval()

◆ setTargetPatchDataIndex()

◆ clearTargetPatchDataIndex()

◆ setHomogeneousBc()

◆ setBcCoefs() [1/2]

◆ numberOfExtensionsFillable() [1/2]

◆ operator=()

◆ setBcCoefs() [2/2]

◆ numberOfExtensionsFillable() [2/2]

Member Data Documentation

◆ d_comp_idx

◆ d_bc_coefs

◆ d_target_data_idx

◆ d_homogeneous_bc