Multiple time-scale methods in particle simulations of plasmas

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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.

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Pages: 19

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Cohen, B.I. February 14, 1985.

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Description

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.

Physical Description

Pages: 19

Notes

NTIS, PC A02/MF A01.

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  • Orbital dynamics and applications to accelerators workshop, Berkeley, CA, USA, 7 Mar 1985

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  • Other: DE85007519
  • Report No.: UCRL-92201
  • Report No.: CONF-8503105-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 6127215
  • Archival Resource Key: ark:/67531/metadc1111905

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • February 14, 1985

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

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  • April 27, 2018, 1:46 p.m.

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Cohen, B.I. Multiple time-scale methods in particle simulations of plasmas, article, February 14, 1985; [Livermore,] California. (digital.library.unt.edu/ark:/67531/metadc1111905/: accessed November 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.