Multiple time-scale methods in particle simulations of plasmas

Conference · Thu Feb 14 00:00:00 EST 1985

OSTI ID:6127215

Cohen, B I

This paper surveys recent advances in the application of multiple time-scale methods to particle simulation of collective phenomena in plasmas. These methods dramatically improve the efficiency of simulating low-frequency kinetic behavior by allowing the use of a large timestep, while retaining accuracy. The numerical schemes surveyed provide selective damping of unwanted high-frequency waves and preserve numerical stability in a variety of physics models: electrostatic, magneto-inductive, Darwin and fully electromagnetic. The paper reviews hybrid simulation models, the implicitmoment-equation method, the direct implicit method, orbit averaging, and subcycling.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6127215
• Report Number(s): UCRL-92201; CONF-8503105-1; ON: DE85007519
• Resource Relation: Conference: Orbital dynamics and applications to accelerators workshop, Berkeley, CA, USA, 7 Mar 1985
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PLASMA SIMULATION
COMPUTERIZED SIMULATION
KINETIC EQUATIONS
MATHEMATICAL MODELS
MOMENTS METHOD
ORBITS
EQUATIONS
SIMULATION
700105* - Fusion Energy- Plasma Research- Plasma Kinetics-Theoretical- (-1987)