Abstract base-class for ODE system solvers. More...

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Classes
class	stepState

Public Member Functions
	TypeName ("ODESolver")
	Runtime type information. More...

	declareRunTimeSelectionTable (autoPtr, ODESolver, dictionary,(const ODESystem &ode, const dictionary &dict),(ode, dict))

	ODESolver (const ODESystem &ode, const dictionary &dict)
	Construct for given ODESystem. More...

	ODESolver (const ODESystem &ode, const scalarField &absTol, const scalarField &relTol)
	Construct for given ODESystem specifying tolerances. More...

virtual	~ODESolver ()
	Destructor. More...

scalarField &	absTol ()

scalarField &	relTol ()

virtual void	solve (scalar &x, scalarField &y, scalar &dxTry) const
	Solve the ODE system as far as possible upto dxTry. More...

virtual void	solve (scalar &x, scalarField &y, stepState &step) const
	Solve the ODE system as far as possible upto dxTry. More...

virtual void	solve (const scalar xStart, const scalar xEnd, scalarField &y, scalar &dxEst) const
	Solve the ODE system from xStart to xEnd, update the state. More...

Static Public Member Functions
static autoPtr< ODESolver >	New (const ODESystem &ode, const dictionary &dict)
	Select null constructed. More...

Protected Member Functions
scalar	normalizeError (const scalarField &y0, const scalarField &y, const scalarField &err) const
	Return the nomalized scalar error. More...

	ODESolver (const ODESolver &)
	Disallow default bitwise copy construct. More...

void	operator= (const ODESolver &)
	Disallow default bitwise assignment. More...

Protected Attributes
const ODESystem &	odes_
	Reference to ODESystem. More...

label	n_
	Size of the ODESystem. More...

scalarField	absTol_
	Absolute convergence tolerance per step. More...

scalarField	relTol_
	Relative convergence tolerance per step. More...

label	maxSteps_
	The maximum number of sub-steps allowed for the integration step. More...

Detailed Description

Abstract base-class for ODE system solvers.

Source files

Definition at line 50 of file ODESolver.H.

Constructor & Destructor Documentation

ODESolver ( const ODESolver & )

protected

Disallow default bitwise copy construct.

Referenced by ODESolver::ODESolver(), and ODESolver::stepState::stepState().

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ODESolver	(	const ODESystem &	ode,
		const dictionary &	dict
	)

Construct for given ODESystem.

Definition at line 39 of file ODESolver.C.

References ODESolver::ODESolver().

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ODESolver	(	const ODESystem &	ode,
		const scalarField &	absTol,
		const scalarField &	relTol
	)

Construct for given ODESystem specifying tolerances.

Definition at line 50 of file ODESolver.C.

References ODESolver::normalizeError().

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virtual ~ODESolver ( )

inlinevirtual

Destructor.

Definition at line 157 of file ODESolver.H.

Member Function Documentation

Foam::scalar normalizeError	(	const scalarField &	y0,
		const scalarField &	y,
		const scalarField &	err
	)		const

protected

Return the nomalized scalar error.

Definition at line 67 of file ODESolver.C.

References ODESolver::absTol_, forAll, Foam::mag(), Foam::max(), ODESolver::relTol_, and ODESolver::solve().

Referenced by ODESolver::ODESolver(), Trapezoid::solve(), Euler< Type >::solve(), EulerSI::solve(), Rosenbrock12::solve(), Rosenbrock23::solve(), rodas23::solve(), rodas34::solve(), RKCK45::solve(), RKDP45::solve(), RKF45::solve(), and Rosenbrock34::solve().

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void operator= ( const ODESolver & )

protected

Disallow default bitwise assignment.

TypeName ( "ODESolver" )

Runtime type information.

declareRunTimeSelectionTable	(	autoPtr	,
		ODESolver	,
		dictionary	,
		(const ODESystem &ode, const dictionary &dict)	,
		(ode, dict)
	)

Referenced by ODESolver::stepState::stepState().

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Foam::autoPtr< Foam::ODESolver > New	(	const ODESystem &	ode,
		const dictionary &	dict
	)

static

Select null constructed.

Definition at line 31 of file ODESolverNew.C.

References dict, Foam::endl(), Foam::exit(), Foam::FatalError, FatalErrorInFunction, Foam::Info, dictionary::lookup(), and Foam::nl.

Referenced by ODESolver::stepState::stepState().

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scalarField& absTol ( )

inline

Definition at line 163 of file ODESolver.H.

References ODESolver::absTol_.

Referenced by ODESolver::stepState::stepState().

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scalarField& relTol ( )

inline

Definition at line 168 of file ODESolver.H.

References ODESolver::relTol_, and ODESolver::solve().

Referenced by ODESolver::stepState::stepState().

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virtual void solve	(	scalar &	x,
		scalarField &	y,
		scalar &	dxTry
	)		const

inlinevirtual

Solve the ODE system as far as possible upto dxTry.

adjusting the step as necessary to provide a solution within the specified tolerance. Update the state and return an estimate for the next step in dxTry

Reimplemented in Rosenbrock34, RKDP45, RKF45, SIBS, RKCK45, rodas34, rodas23, Rosenbrock23, Rosenbrock12, EulerSI, Euler< Type >, and Trapezoid.

Definition at line 178 of file ODESolver.H.

References ODESolver::stepState::dxTry.

Referenced by ODESolver::normalizeError(), ODESolver::relTol(), and ODESolver::solve().

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void solve	(	scalar &	x,
		scalarField &	y,
		stepState &	step
	)		const

virtual

Solve the ODE system as far as possible upto dxTry.

adjusting the step as necessary to provide a solution within the specified tolerance. Update the state and return an estimate for the next step in dxTry

Reimplemented in seulex.

Definition at line 86 of file ODESolver.C.

References ODESolver::stepState::dxDid, ODESolver::stepState::dxTry, ODESolver::solve(), and x.

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