BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType > Class Template Reference

#include <BaseLevelBackwardEuler.H>

Inheritance diagram for BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >:

Public Member Functions
	BaseLevelBackwardEuler (const Vector< DisjointBoxLayout > &a_grids, const Vector< int > &a_refRat, const ProblemDomain &a_level0Domain, RefCountedPtr< AMRLevelOpFactory< LevelDataType > > &a_opFact, const RefCountedPtr< AMRMultiGrid< LevelDataType > > &a_solver)
virtual	~BaseLevelBackwardEuler ()
	Destructor, called after destructors of BaseLevelBackwardEuler subclasses. More...
void	updateSoln (LevelDataType &a_phiNew, LevelDataType &a_phiOld, LevelDataType &a_src, LevelData< FluxDataType > &a_flux, FluxRegisterType *a_fineFluxRegPtr, FluxRegisterType *a_crseFluxRegPtr, const LevelDataType *a_crsePhiOldPtr, const LevelDataType *a_crsePhiNewPtr, Real a_oldTime, Real a_crseOldTime, Real a_crseNewTime, Real a_dt, int a_level, bool a_zeroPhi=true, bool a_rhsAlreadyKappaWeighted=false, int a_fluxStartComponent=0)
Public Member Functions inherited from BaseLevelHeatSolver< LevelDataType, FluxDataType, FluxRegisterType >
	BaseLevelHeatSolver (const Vector< DisjointBoxLayout > &a_grids, const Vector< int > &a_refRat, const ProblemDomain &a_level0Domain, RefCountedPtr< AMRLevelOpFactory< LevelDataType > > &a_opFact, const RefCountedPtr< AMRMultiGrid< LevelDataType > > &a_solver)
virtual	~BaseLevelHeatSolver ()
	Destructor, called after destructors of BaseLevelHeatSolver subclasses. More...
virtual void	updateSoln (LevelDataType &a_phiNew, LevelDataType &a_phiOld, LevelDataType &a_src, FluxRegisterType *a_fineFluxRegPtr, FluxRegisterType *a_crseFluxRegPtr, const LevelDataType *a_crsePhiOldPtr, const LevelDataType *a_crsePhiNewPtr, Real a_oldTime, Real a_crseOldTime, Real a_crseNewTime, Real a_dt, int a_level, bool a_zeroPhi=true, bool a_rhsAlreadyKappaWeighted=false, int a_fluxStartComponent=0)
virtual void	computeDiffusion (LevelDataType &a_diffusiveTerm, LevelDataType &a_phiOld, LevelDataType &a_src, LevelData< FluxDataType > &a_flux, FluxRegisterType *a_fineFluxRegPtr, FluxRegisterType *a_crseFluxRegPtr, const LevelDataType *a_crsePhiOldPtr, const LevelDataType *a_crsePhiNewPtr, Real a_oldTime, Real a_crseOldTime, Real a_crseNewTime, Real a_dt, int a_level, bool a_zeroPhi=true, bool a_rhsAlreadyKappaWeighted=false)
virtual void	applyOperator (LevelDataType &a_ans, const LevelDataType &a_phi, const LevelDataType *a_phiC, int a_level, Real a_alpha, Real a_beta, bool a_applyBC)
void	applyHelm (LevelDataType &a_ans, const LevelDataType &a_phi, const LevelDataType *a_phiC, int a_level, Real a_mu, Real a_dt, bool a_homogeneousBC)
void	incrementFlux (LevelData< FluxDataType > &a_diffusiveFlux, LevelDataType &a_phi, int a_level, Real a_mu, Real a_dt, Real a_sign, bool a_setToZero)
void	solveHelm (LevelDataType &a_phi, LevelDataType &a_phiC, LevelDataType &a_rhs, int a_level, Real a_mu, Real a_dt, bool a_zeroPhi=true)
void	resetSolverAlphaAndBeta (const Real &a_alpha, const Real &a_beta)
virtual LevelTGAHelmOp< LevelDataType, FluxDataType > *	newOp (const ProblemDomain &a_indexSpace, RefCountedPtr< AMRLevelOpFactory< LevelDataType > > &a_opFact)
int	size () const
	Returns the number of grid levels on which this integrator operates. More...

Private Member Functions
BaseLevelBackwardEuler &	operator= (const BaseLevelBackwardEuler &)
	BaseLevelBackwardEuler (const BaseLevelBackwardEuler &a_opin)
	BaseLevelBackwardEuler ()

Additional Inherited Members
Protected Member Functions inherited from BaseLevelHeatSolver< LevelDataType, FluxDataType, FluxRegisterType >
void	timeInterp (LevelDataType &a_data, const LevelDataType &a_oldData, const LevelDataType &a_newData, Real a_time, Real a_oldTime, Real a_newTime, int a_level)
Protected Attributes inherited from BaseLevelHeatSolver< LevelDataType, FluxDataType, FluxRegisterType >
Vector< DisjointBoxLayout >	m_grids
	The disjoint box layouts at every AMR grid level. More...
Vector< int >	m_refRat
	The refinement ratios between AMR grid levels. More...
ProblemDomain	m_level0Domain
	The coarsest domain on which the Helmholtz equation is integrated. More...
Vector< LevelTGAHelmOp< LevelDataType, FluxDataType > *>	m_ops
RefCountedPtr< AMRMultiGrid< LevelDataType > >	m_solver
	The multigrid solver used to solve the Helmholtz equation. More...

Detailed Description

template<class LevelDataType, class FluxDataType, class FluxRegisterType>
class BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >

This base class implements the 1st-order implicit L0-stable time integration algorithm for solving elliptic equations. It relies upon linear algebraic operations defined in the underlying Helmholtz operators.

Template Parameters

LevelDataType	The type used to store data at a grid level. This is usually LevelData<T>, where T is some cell-centered FArrayBox type.
FluxDataType	The type used to store flux data at a grid level. This is usually an array box clas that stores fluxes.
FluxRegisterType	The type used to store flux register data for interactions between different grid levels. This is usually a flux register class.

Constructor & Destructor Documentation

BaseLevelBackwardEuler() [1/3]

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::BaseLevelBackwardEuler ( const Vector< DisjointBoxLayout > &  a_grids, const Vector< int > &  a_refRat, const ProblemDomain &  a_level0Domain, RefCountedPtr< AMRLevelOpFactory< LevelDataType > > &  a_opFact, const RefCountedPtr< AMRMultiGrid< LevelDataType > > &  a_solver  )

inline

Initializes the base class of a BackwardEuler time integrator. This must be called by any subclass of BaseLevelBackwardEuler.

Parameters

a_grids	The DisjointBoxLayout on which the BackwardEuler scheme is to operate.
a_refRatio	An array containing the refinement ratios between the hierarchical AMR grid levels for the domain.
a_level0Domain	The domain at the coarsest AMR grid level.
a_opFact	A factory typename LevelDataTypehat is used to generate Helmholtz operators to be used by the scheme.
a_solver	An AMR Multigrid solver for solving the linear systems at each stage of the BackwardEuler integration scheme.

~BaseLevelBackwardEuler()

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

virtual BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::~BaseLevelBackwardEuler ( )

inlinevirtual

Destructor, called after destructors of BaseLevelBackwardEuler subclasses.

BaseLevelBackwardEuler() [2/3]

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::BaseLevelBackwardEuler ( const BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType > &  a_opin )

private

BaseLevelBackwardEuler() [3/3]

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::BaseLevelBackwardEuler ( )

private

Referenced by BaseLevelBackwardEuler< LevelData< FArrayBox >, FluxBox, LevelFluxRegister >::updateSoln().

Member Function Documentation

updateSoln()

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

void BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::updateSoln ( LevelDataType &  a_phiNew, LevelDataType &  a_phiOld, LevelDataType &  a_src, LevelData< FluxDataType > &  a_flux, FluxRegisterType *  a_fineFluxRegPtr, FluxRegisterType *  a_crseFluxRegPtr, const LevelDataType *  a_crsePhiOldPtr, const LevelDataType *  a_crsePhiNewPtr, Real  a_oldTime, Real  a_crseOldTime, Real  a_crseNewTime, Real  a_dt, int  a_level, bool  a_zeroPhi = true, bool  a_rhsAlreadyKappaWeighted = false, int  a_fluxStartComponent = 0  )

inlinevirtual

Integrates the helmholtz equation represented by this object, placing the new solution in a_phiNew.

Parameters

a_phiNew	The new solution (the value of phi at time n + 1) will be stored here.
a_phiOld	The old solution (the value of phi at time n).
a_src	The source term on the right hand side of the Helmholtz equation.
a_flux	This will store the flux computed at the current grid level during the solution of the Helmholtz equation.
a_fineFluxRegPtr	A pointer to the flux register representing the finer grid level adjacent to this one, or NULL if there is no finer grid level.
a_crseFluxRegPtr	A pointer to the flux register representing the coarser grid level adjacent to this one, or NULL if there is no coarser grid level.
a_oldTime	The time at the beginning of the integration step at the current grid level.
a_crseOldTime	The time at the beginning of the integration step at the coarser adjacent grid level. This parameter is ignored if there is no coarser grid level.
a_crseNewTime	The time at the end of the integration step at the coarser adjacent grid level. This parameter is ignored if there is no coarser grid level.
a_dt	The size of the integration step at the current grid level.
a_level	The current grid level.
a_zeroPhi	If set to true, a_phiNew will be set to zero before the integration takes place. Otherwise, a_phiNew is assumed to be an initial estimate for the solution in the iterative linear solve.
a_fluxStartComponent	An index identifying the component at which flux data begins within a_fineFluxRegPtr and a_crseFluxRegPtr.

Implements BaseLevelHeatSolver< LevelDataType, FluxDataType, FluxRegisterType >.

operator=()

template<class LevelDataType, class FluxDataType, class FluxRegisterType>

BaseLevelBackwardEuler& BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType >::operator= ( const BaseLevelBackwardEuler< LevelDataType, FluxDataType, FluxRegisterType > &  )

private

Referenced by BaseLevelBackwardEuler< LevelData< FArrayBox >, FluxBox, LevelFluxRegister >::updateSoln().

---

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

• BaseLevelBackwardEuler.H