ADIABATIC COMPRESSION AND INTERCHANGE STABILITY OF ROTATING COMPACT TOROID PLASMAS.

Eliezer Hameiri, Donald C. Stevens, William Grossmann

Research output: Contribution to journalArticle

Abstract

The adiabatic compression of plasmas with mass rotation is formulated as a variational principle based on some constants of the motion. A numerical code is constructed and Grad's alternating dimensions method is used. The calculations simulate compression either by increasing the flux outside the plasma or by liner compression. Changes in Mach number and some stability criteria during compression are monitored. Interestingly, the Mach number remains almost constant despite a spin up of the plasma. An extension of the interchange stability criterion for rotating plasmas is developed. Interchange stable equilibria exhibit very high current density near the separatrix and tend to be more elongated. Interchange instability offers a mechanism to generate rotation throughout the plasma.

Original languageEnglish (US)
Pages (from-to)590-597
Number of pages8
JournalPhysics of Fluids
Volume28
Issue number2
DOIs
StatePublished - Feb 1985

Fingerprint

toroids
Interchanges
Plasmas
Mach number
Stability criteria
rotating plasmas
Compaction
linings
variational principles
high current
current density
Current density
Fluxes

ASJC Scopus subject areas

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

Cite this

ADIABATIC COMPRESSION AND INTERCHANGE STABILITY OF ROTATING COMPACT TOROID PLASMAS. / Hameiri, Eliezer; Stevens, Donald C.; Grossmann, William.

In: Physics of Fluids, Vol. 28, No. 2, 02.1985, p. 590-597.

Research output: Contribution to journalArticle

Hameiri, Eliezer ; Stevens, Donald C. ; Grossmann, William. / ADIABATIC COMPRESSION AND INTERCHANGE STABILITY OF ROTATING COMPACT TOROID PLASMAS. In: Physics of Fluids. 1985 ; Vol. 28, No. 2. pp. 590-597.
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