A tearing mode energy principle for an axisymmetric force-free plasma

Ming-Sheng Chu, M. S. Chance, J. M. Greene, T. H. Jensen

Research output: Contribution to journalArticlepeer-review

2 Citations (Scopus)


A self-adjoint, gauge invariant stability functional δWTG for determination of a sufficient condition of tearing mode stability is obtained for a plasma with a uniform pressure. The plasma is stable if there is no free energy available to support energy flux into the singular layer. The Δ′ concept, valid in simple geometries, is generalized to reflect variation of equilibrium quantities on the flux surface. The relationship of δWTG to the ideal stability functional and other possible forms of tearing mode stability functionals is clarified through gauge transformations.

Original languageEnglish
Pages (from-to)62-67
Number of pages6
JournalPhysics of Fluids B
Issue number1
Publication statusPublished - 1989 Jan 1

All Science Journal Classification (ASJC) codes

  • Computational Mechanics
  • Condensed Matter Physics
  • Mechanics of Materials
  • Physics and Astronomy(all)
  • Fluid Flow and Transfer Processes


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