Symplectic 2nd-order explicit time-integrator for rigid-body motion. More...

Inheritance diagram for symplectic:

Collaboration diagram for symplectic:

Public Member Functions
	TypeName ("symplectic")

	symplectic (rigidBodyMotion &body, const dictionary &dict)

virtual	~symplectic ()

virtual void	solve (const scalarField &tau, const Field< spatialVector > &fx)

Public Member Functions inherited from rigidBodySolver
	TypeName ("rigidBodySolver")

	declareRunTimeSelectionTable (autoPtr, rigidBodySolver, dictionary,(rigidBodyMotion &body, const dictionary &dict),(body, dict))

	rigidBodySolver (rigidBodyMotion &body)

virtual	~rigidBodySolver ()

Additional Inherited Members
Static Public Member Functions inherited from rigidBodySolver
static autoPtr< rigidBodySolver >	New (rigidBodyMotion &body, const dictionary &dict)

Protected Member Functions inherited from rigidBodySolver
rigidBodyModelState &	state ()

scalarField &	q ()

scalarField &	qDot ()

scalarField &	qDdot ()

scalar	deltaT () const

const rigidBodyModelState &	state0 () const

const scalarField &	q0 () const

const scalarField &	qDot0 () const

const scalarField &	qDdot0 () const

scalar	deltaT0 () const

void	correctQuaternionJoints ()

Protected Attributes inherited from rigidBodySolver
rigidBodyMotion &	model_

Detailed Description

Symplectic 2nd-order explicit time-integrator for rigid-body motion.

Reference:

    Dullweber, A., Leimkuhler, B., & McLachlan, R. (1997).
    Symplectic splitting methods for rigid body molecular dynamics.
    The Journal of chemical physics, 107(15), 5840-5851.

Can only be used for explicit integration of the motion of the body, i.e. may only be called once per time-step, no outer-correctors may be applied. For implicit integration with outer-correctors choose either CrankNicolson or Newmark schemes.

Example specification in dynamicMeshDict:

solver
{
    type    symplectic;
}

See also: Foam::RBD::rigidBodySolvers::CrankNicolson Foam::RBD::rigidBodySolvers::Newmark

Source files

Definition at line 74 of file symplectic.H.

Constructor & Destructor Documentation

◆ symplectic()

symplectic	(	rigidBodyMotion &	body,
		const dictionary &	dict
	)

Definition at line 42 of file symplectic.C.

◆ ~symplectic()

~symplectic ( )

virtual

Definition at line 53 of file symplectic.C.

Member Function Documentation

◆ TypeName()

TypeName ( "symplectic" )

◆ solve()

void solve	(	const scalarField &	tau,
		const Field< spatialVector > &	fx
	)

virtual

Implements rigidBodySolver.

Definition at line 60 of file symplectic.C.

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

src/rigidBodyDynamics/rigidBodySolvers/symplectic/symplectic.H
src/rigidBodyDynamics/rigidBodySolvers/symplectic/symplectic.C

Public Member Functions