Choice of constants of motion coordinates in numerical solving of the three-dimensional Fokker-Planck equation for tokamaks

Timo Kiviniemi (Corresponding Author), Jukka Heikkinen

Research output: Contribution to journalArticleScientificpeer-review

4 Citations (Scopus)

Abstract

A set of constants of motions is chosen which is found suitable for numerical solving of the three-dimensional neoclassical kinetic equation for low collisionality plasmas in tokamaks. With the chosen set, the constants of motion space is well filled with a unique correspondence to the orbits allowed in the configuration. The numerical treatment of the boundary between the trapped and counter-passing particles becomes more straightforward, because the boundary becomes a function of only one constants of motion coordinate.

Original languageEnglish
Pages (from-to)149-154
JournalComputer Physics Communications
Volume107
Issue number1-3
DOIs
Publication statusPublished - 1997
MoE publication typeA1 Journal article-refereed

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