---

ExtrapBC Class Reference

Class to enforce homogeneous neumann boundary conditions. More...

#include <ExtrapBC.H>

Inheritance diagram for ExtrapBC:

[legend]Collaboration diagram for ExtrapBC:

[legend]List of all members.

Public Methods
	~ExtrapBC ()
	ExtrapBC ()
	ExtrapBC (int dir, Side::LoHiSide sd)
	ExtrapBC (int dir, Side::LoHiSide sd, const Interval &a_comps)
Protected Methods
virtual void	fillBCValues (FArrayBox &a_neumfac, FArrayBox &a_dircfac, FArrayBox &a_inhmval, Real a_dx, const ProblemDomain &a_domain) const
virtual void	applyHomogeneousBCs (FArrayBox &a_state, const ProblemDomain &a_domain, Real a_dx) const
virtual void	applyInhomogeneousBCs (FArrayBox &a_state, const ProblemDomain &a_domain, Real a_dx) const
virtual void	applyExtrapBCs (FArrayBox &a_state, const ProblemDomain &a_domain, Real a_dx) const
virtual void	fillBCValues (FArrayBox &a_neumfac, FArrayBox &a_dircfac, FArrayBox &a_inhmval, Real a_dx, const Box &a_domain) const
	deprecated interface
virtual void	applyHomogeneousBCs (FArrayBox &a_state, const Box &a_domain, Real a_dx) const
	deprecated interface
virtual void	applyInhomogeneousBCs (FArrayBox &a_state, const Box &a_domain, Real a_dx) const
	deprecated interface
virtual void	applyExtrapBCs (FArrayBox &a_state, const Box &a_domain, Real a_dx) const
	deprecated interface
BoxGhostBC *	new_boxghostbc () const
Friends
class	DomainGhostBC

---

Detailed Description

Class to enforce homogeneous neumann boundary conditions.

BoxGhostBC class implentation to enforce homogeneous neumann boundary conditions Recall that BoxGhostBC is a class to encapsulate the operations of ghost-cell boundary conditions at a face. If the solution is phi and the face normal direction is x, the boundary conditions usually used can be expressed as A*phi + B*dphi/dx = C. For homogeneous Neumann BCs, A=C=0, B= 1 These functions are only meant to be called by DomainGhostBC

---

Constructor & Destructor Documentation

ExtrapBC::~ExtrapBC (    )

ExtrapBC::ExtrapBC (    )

ExtrapBC::ExtrapBC (  int    dir, Side::LoHiSide    sd )

ExtrapBC::ExtrapBC (  int    dir, Side::LoHiSide    sd, const Interval &    a_comps )

---

Member Function Documentation

virtual void ExtrapBC::applyExtrapBCs (  FArrayBox &    a_state, const Box &    a_domain, Real    a_dx )  const [protected, virtual]

deprecated interface

virtual void ExtrapBC::applyExtrapBCs (  FArrayBox &    a_state, const ProblemDomain &    a_domain, Real    a_dx )  const [protected, virtual]

virtual void ExtrapBC::applyHomogeneousBCs (  FArrayBox &    a_state, const Box &    a_domain, Real    a_dx )  const [protected, virtual]

deprecated interface Reimplemented from BoxGhostBC.

virtual void ExtrapBC::applyHomogeneousBCs (  FArrayBox &    a_state, const ProblemDomain &    a_domain, Real    a_dx )  const [protected, virtual]

Apply the homogeneous form of the boundary conditions to a_state along the boundary of a_domain. Reimplemented from BoxGhostBC.

virtual void ExtrapBC::applyInhomogeneousBCs (  FArrayBox &    a_state, const Box &    a_domain, Real    a_dx )  const [protected, virtual]

deprecated interface Reimplemented from BoxGhostBC.

virtual void ExtrapBC::applyInhomogeneousBCs (  FArrayBox &    a_state, const ProblemDomain &    a_domain, Real    a_dx )  const [protected, virtual]

Apply the inhomogeneous form of the boundary conditions to a_state along the boundary of a_domain. Reimplemented from BoxGhostBC.

virtual void ExtrapBC::fillBCValues (  FArrayBox &    a_neumfac, FArrayBox &    a_dircfac, FArrayBox &    a_inhmval, Real    a_dx, const Box &    a_domain )  const [protected, virtual]

deprecated interface Implements BoxGhostBC.

virtual void ExtrapBC::fillBCValues (  FArrayBox &    a_neumfac, FArrayBox &    a_dircfac, FArrayBox &    a_inhmval, Real    a_dx, const ProblemDomain &    a_domain )  const [protected, virtual]

Pure-virtual Worker function to fill arrays which define the boundary condition. Essentially, if the boundary condition is represented as A*phi + B*dphi/dn = C, then a_dircfac is A, a_neumfac is B, and a_inhmval is C. Implements BoxGhostBC.

BoxGhostBC* ExtrapBC::new_boxghostbc (    )  const [protected, virtual]

Virtual constructor workaround. Implements BoxGhostBC.

---

Friends And Related Function Documentation

friend class DomainGhostBC [friend]

Reimplemented from BoxGhostBC.

---

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

• ExtrapBC.H

---