amrex::FaceDivFree Class Reference

Divergence-preserving interpolation on face centered data. More...

#include <AMReX_Interpolater.H>

Inheritance diagram for amrex::FaceDivFree:

Public Member Functions
Box	CoarseBox (const Box &fine, int ratio) override
	Returns coarsened box given fine box and refinement ratio.
Box	CoarseBox (const Box &fine, const IntVect &ratio) override
	Returns coarsened box given fine box and refinement ratio.
void	interp (const FArrayBox &crse, int crse_comp, FArrayBox &fine, int fine_comp, int ncomp, const Box &fine_region, const IntVect &ratio, const Geometry &crse_geom, const Geometry &fine_geom, Vector< BCRec > const &bcr, int actual_comp, int actual_state, RunOn runon) override
	Coarse to fine interpolation in space.
void	interp_arr (Array< FArrayBox *, 3 > const &crse, int crse_comp, Array< FArrayBox *, 3 > const &fine, int fine_comp, int ncomp, const Box &fine_region, const IntVect &ratio, Array< IArrayBox *, 3 > const &solve_mask, const Geometry &crse_geom, const Geometry &fine_geom, Vector< Array< BCRec, 3 > > const &bcr, int actual_comp, int actual_state, RunOn runon) override
	Coarse to fine interpolation in space.
Public Member Functions inherited from amrex::Interpolater
virtual void	interp_face (const FArrayBox &, const int, FArrayBox &, const int, const int, const Box &, const IntVect &, const IArrayBox &, const Geometry &, const Geometry &, Vector< BCRec > const &, const int, RunOn)
	Coarse-to-fine interpolation for face-based data (optional override).
virtual void	protect (const FArrayBox &, int, FArrayBox &, int, FArrayBox &, int, int, const Box &, const IntVect &, const Geometry &, const Geometry &, Vector< BCRec > &, RunOn)
	Optional limiter hook that reprojects fine data to avoid undershoot/overshoot.
Public Member Functions inherited from amrex::InterpBase
	InterpBase ()=default
virtual	~InterpBase ()=default
	InterpBase (InterpBase const &) noexcept=default
	InterpBase (InterpBase &&) noexcept=default
InterpBase &	operator= (InterpBase const &) noexcept=default
InterpBase &	operator= (InterpBase &&) noexcept=default
InterpolaterBoxCoarsener	BoxCoarsener (const IntVect &ratio)
	Convenience helper that returns a BoxConverter bound to this interpolater.

Additional Inherited Members
Static Public Member Functions inherited from amrex::InterpBase
static Vector< int >	GetBCArray (const Vector< BCRec > &bcr)
	Convert BCRec entries to an integer array that interpolaters can consume.

Detailed Description

Divergence-preserving interpolation on face centered data.

Divergence-preserving interpolation on face centered data, i.e., it ensures the divergence of the fine ghost cells match the value of the divergence of the underlying crse cell. All fine cells overlying a given coarse cell will have the same divergence, even when the coarse grid divergence is spatially varying. Based on Vanella et. al. (doi:10.1016/j.jcp.2010.05.003, section 3.2), but solves the interior closure problem using least squares with an initial guess equal to the average of fine face values across the cell.

Member Function Documentation

CoarseBox() [1/2]

Box amrex::FaceDivFree::CoarseBox ( const Box &  fine, const IntVect &  ratio  )

overridevirtual

Returns coarsened box given fine box and refinement ratio.

Parameters

fine
ratio

Implements amrex::InterpBase.

CoarseBox() [2/2]

Box amrex::FaceDivFree::CoarseBox ( const Box &  fine, int  ratio  )

overridevirtual

Returns coarsened box given fine box and refinement ratio.

Parameters

fine
ratio

Implements amrex::InterpBase.

interp()

void amrex::FaceDivFree::interp ( const FArrayBox &  crse, int  crse_comp, FArrayBox &  fine, int  fine_comp, int  ncomp, const Box &  fine_region, const IntVect &  ratio, const Geometry &  crse_geom, const Geometry &  fine_geom, Vector< BCRec > const &  bcr, int  actual_comp, int  actual_state, RunOn  runon  )

overridevirtual

Coarse to fine interpolation in space.

Parameters

crse
crse_comp
fine
fine_comp
ncomp
fine_region
ratio
crse_geom
fine_geom
bcr
actual_comp
actual_state
runon

Implements amrex::Interpolater.

interp_arr()

void amrex::FaceDivFree::interp_arr ( Array< FArrayBox *, 3 > const &  crse, int  crse_comp, Array< FArrayBox *, 3 > const &  fine, int  fine_comp, int  ncomp, const Box &  fine_region, const IntVect &  ratio, Array< IArrayBox *, 3 > const &  solve_mask, const Geometry &  crse_geom, const Geometry &  fine_geom, Vector< Array< BCRec, 3 > > const &  bcr, int  actual_comp, int  actual_state, RunOn  runon  )

overridevirtual

Coarse to fine interpolation in space.

Parameters

crse
crse_comp
fine
fine_comp
ncomp
fine_region
ratio
solve_mask
crse_geom
fine_geom
bcr
actual_comp
actual_state
runon

Reimplemented from amrex::Interpolater.

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

• /home/runner/work/amrex/amrex/Src/AmrCore/AMReX_Interpolater.H
• /home/runner/work/amrex/amrex/Src/AmrCore/AMReX_Interpolater.cpp