Higher order multipoles and splines in plasma simulations

H. Okuda, C. Z. Cheng

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


The reduction of spatial grid effects in plasma simulations has been studied numerically using higher order multipole expansions and the spline method in one dimension. It is found that, while keeping the higher order moments such as quadrupole and octopole moments substantially reduces the grid effects, quadratic and cubic splines in general have better stability properties for numerical plasma simulations when the Debye length is much smaller than the grid size. In particular the spline method may be useful in three-dimensional simulations for plasma confinement where the grid size in the axial direction is much greater than the Debye length.

Original languageEnglish
Pages (from-to)169-176
Number of pages8
JournalComputer Physics Communications
Issue number3-4
Publication statusPublished - 1978

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Physics and Astronomy(all)


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