Ion collisionality and L-H transition in tokamaks

Ker-Chung Shaing, P. J. Christenson

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

When the previous H-mode theory [K. C. Shaing and E. C. Crume, Jr., Phys. Rev. Lett. 63, 2369 (1989)] is extended to include a bi-Maxwellian ion distribution with both cold and hot ion components to model the effects of the non-Maxwellian distribution, the collisionality of the cold ions ν*i c becomes an irrelevant bifurcation parameter, as it is for the electrode-induced H mode. Thus, the observation that the L-H transition can occur even when ν*i c≫1 is consistent with the fundamental physics of the ion orbit loss model, including a hot ion component.

Original languageEnglish
Pages (from-to)666-668
Number of pages3
JournalPhysics of Fluids B
Volume5
Issue number3
DOIs
Publication statusPublished - 1993 Jan 1

Fingerprint

Ions
ions
ion distribution
orbits
Orbits
Physics
physics
electrodes
Electrodes

All Science Journal Classification (ASJC) codes

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

Cite this

Shaing, Ker-Chung ; Christenson, P. J. / Ion collisionality and L-H transition in tokamaks. In: Physics of Fluids B. 1993 ; Vol. 5, No. 3. pp. 666-668.
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Ion collisionality and L-H transition in tokamaks. / Shaing, Ker-Chung; Christenson, P. J.

In: Physics of Fluids B, Vol. 5, No. 3, 01.01.1993, p. 666-668.

Research output: Contribution to journalArticle

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