BCFunc.H File Reference

#include "IntVect.H"
#include "RealVect.H"
#include "FArrayBox.H"
#include "ProblemDomain.H"
#include "RefCountedPtr.H"
#include "NamespaceHeader.H"
#include "NamespaceFooter.H"

Include dependency graph for BCFunc.H:

This graph shows which files directly or indirectly include this file:

Go to the source code of this file.

Classes
class	BCFunction
class	BCHolder
class	BCValueFunction
class	BCValueHolder
class	ConstBCFunction
Typedefs
typedef void(*	BCFunc )(FArrayBox &a_state, const Box &a_valid, const ProblemDomain &a_domain, Real a_dx, bool a_homogeneous)
typedef void(*	BCValueFunc )(Real *a_pos, int *a_dir, Side::LoHiSide *a_side, Real *a_value)
Functions
RefCountedPtr< BCFunction >	ConstDiriNeumBC (const IntVect &a_loSideType, const RealVect &a_loSideValue, const IntVect &a_hiSideType, const RealVect &a_hiSideValue)
void	NeumBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, bool a_homogeneous, const BCValueHolder &a_value, int a_dir, Side::LoHiSide a_side)
void	NeumBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, bool a_homogeneous, BCValueHolder a_value)
void	DiriBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, bool a_homogeneous, BCValueHolder a_value, int a_dir, Side::LoHiSide a_side, int a_order=1)
void	DiriBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, bool a_homogeneous, BCValueHolder a_value, int a_order=1)
void	NoSlipVectorBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, int a_dir, Side::LoHiSide a_side, int a_order=2)
void	ReflectiveVectorBC (FArrayBox &a_state, const Box &a_valid, Real a_dx, int a_dir, Side::LoHiSide a_side, int a_order=2)

---

Typedef Documentation

typedef void(* BCFunc)(FArrayBox &a_state, const Box &a_valid, const ProblemDomain &a_domain, Real a_dx, bool a_homogeneous)

function interface for ghost cell boundary conditions of AMRPoissonOp. If you are using Neumann or Dirichlet boundary conditions, it is easiest to use the functions provided.

typedef void(* BCValueFunc)(Real *a_pos, int *a_dir, Side::LoHiSide *a_side, Real *a_value)

given pos [x,y,z] position on center of cell edge int dir direction, x being 0 int side -1 for low, +1 = high, fill in the a_values array

---

Function Documentation

RefCountedPtr<BCFunction> ConstDiriNeumBC	(	const IntVect &	a_loSideType,
		const RealVect &	a_loSideValue,
		const IntVect &	a_hiSideType,
		const RealVect &	a_hiSideValue
	)

A helper function to produce the needed object for constant Dirichlet/Neumann on all the faces. The return value can be passed to anything expecting a BCFunction/BCHolder.

"a_loSideType/a_hiSideType" specify the type of boundary condition in a given direction by having the enter corresponding to the direction set to 0 for Neumann or 1 for Dirichlet (on the low or high side, respectively). "a_loSideValue/a_hiSideValue" specify the (constant) value for boundary condition specified above.

For example, in 2D if "a_loSideType" = (1,0), "a_hiSideType" = (1,1), "a_loSideValue" = (0.0,1.0) and "a_hiSideValue" = (0.0,0.0) then the boundary conditions are:

Low side x: Dirichlet = 0.0 Low side y: Neumann = 1.0 High side x: Dirichlet = 0.0 High side y: Dirichlet = 0.0

void NeumBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		bool	a_homogeneous,
		const BCValueHolder &	a_value,
		int	a_dir,
		Side::LoHiSide	a_side
	)

Neumann bc for a particular side. For use in AMRPoissonOp.

void NeumBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		bool	a_homogeneous,
		BCValueHolder	a_value
	)

Neumann bcs for all sides For use in AMRPoissonOp.

void DiriBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		bool	a_homogeneous,
		BCValueHolder	a_value,
		int	a_dir,
		Side::LoHiSide	a_side,
		int	a_order = 1
	)

Dirichlet boundary conditions for a side. For use in AMRPoissonOp.

void DiriBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		bool	a_homogeneous,
		BCValueHolder	a_value,
		int	a_order = 1
	)

Dirchelet boundary conditions for one side. For use in AMRPoissonOp.

void NoSlipVectorBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		int	a_dir,
		Side::LoHiSide	a_side,
		int	a_order = 2
	)

No slip vector bc (zero all comps). need a_state.ncomp == spacedim For use in ResistivityOp, for example.

void ReflectiveVectorBC	(	FArrayBox &	a_state,
		const Box &	a_valid,
		Real	a_dx,
		int	a_dir,
		Side::LoHiSide	a_side,
		int	a_order = 2
	)

0 normal comp, reflective for all other comps need a_state.ncomp == spacedim For use in ResistivityOp, for example.