MINERVA: Ideal MHD stability code for toroidally rotating tokamak plasmas

N. Aiba, S. Tokuda, M. Furukawa, P. B. Snyder, M. S. Chu

Research output: Contribution to journalArticlepeer-review

26 Citations (Scopus)

Abstract

A new linear MHD stability code MINERVA is developed for investigating a toroidal rotation effect on the stability of ideal MHD modes in tokamak plasmas. This code solves the Frieman-Rotenberg equation as not only the generalized eigenvalue problem but also the initial value problem. The parallel computing method used in this code realizes the stability analysis of both long and short wavelength MHD modes in short time. The results of some benchmarking tests show the validity of this MINERVA code. The numerical study with MINERVA about the toroidal rotation effect on the edge MHD stability shows that the rotation shear destabilizes the intermediate wavelength modes but stabilizes the short wavelength edge localized MHD modes, though the rotation frequency destabilizes both the long and the short wavelength MHD modes.

Original languageEnglish
Pages (from-to)1282-1304
Number of pages23
JournalComputer Physics Communications
Volume180
Issue number8
DOIs
Publication statusPublished - 2009 Aug 1

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Physics and Astronomy(all)

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