symplectic.md

symplectic

Class

Foam::RBD::rigidBodySolvers::symplectic

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

SourceFiles

symplectic.C