POP Nameplate
  • Volume/Page
  • Keyword
  • DOI
  • Citation
  • Advanced
   
 
 
 

Flickr Twitter UniPHY Group iResearch App Facebook

Physics of Plasmas / Volume 7 / Issue 7 / ARTICLES / Magnetically Confined Plasmas, Heating, Confinement

Phys. Plasmas 7, 2959 (2000); http://dx.doi.org/10.1063/1.874147 (5 pages)

Stable high beta spheromak equilibria using concave flux conservers

U. Shumlak and T. R. Jarboe

University of Washington, Aerospace and Energetics Research Program, Seattle, Washington 98195–2250

(Received 21 December 1999; accepted 11 April 2000)

Ideal magnetohydrodynamic stability to the n = 1 and n = 2 modes are calculated for spheromak equilibria in flux conserver shapes, which include a midplane gap, conforming outer wall, and concave side walls. The equilibria are force-free (∇×B = λ(ψ)B) but not minimum energy states and, therefore, have nonuniform λ(ψ) profiles. For each flux conserver shape, the equilibrium with the most hollow linear λ(ψ) profile is found that is stable to the n = 1 and n = 2 modes. The Mercier β limit is calculated for each flux conserver shape using the most hollow current profile constrained by the stability boundary. The results show that a stable high 〈β〉 (>10%) spheromak equilibrium can be produced using a concave flux conserver, improving energy confinement times and plasma performance. © 2000 American Institute of Physics.

© 2000 American Institute of Physics

RELATED DATABASES

To view database links for this article, you need to log in.

KEYWORDS and PACS

Keywords

plasma confinement, plasma instability, plasma magnetohydrodynamics

PACS

  • 52.55.Jd

    Magnetic mirrors, gas dynamic traps

  • 52.35.Py

    Macroinstabilities (hydromagnetic, e.g., kink, fire-hose, mirror, ballooning, tearing, trapped-particle, flute, Rayleigh-Taylor, etc.)

  • 52.65.Kj

    Magnetohydrodynamic and fluid equation

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.874147

PUBLICATION DATA

ISSN

1070-664X (print)  
1089-7674 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    J. B. Taylor, Rev. Mod. Phys. 58, 741 (1986).

    J. M. Finn, W. M. Manheimer, and E. Ott, Phys. Fluids 24, 1336 (1981)PFLDAS000024000007001336000001.

    A. Bondeson, G. Marklin, Z. G. An, H. H. Chen, Y. C. Lee, and C. S. Liu, Phys. Fluids 24, 1682 (1981)PFLDAS000024000009001682000001.

    A. Janos, Phys. Fluids 29, 3342 (1986)PFLDAS000029000010003342000001.

    S. O. Knox, C. W. Barnes, G. J. Marklin, T. R. Jarboe, I. Henins, H. W. Hoida, and B. L. Wright, Phys. Rev. Lett. 56, 842 (1986).

    U. Shumlak and T. R. Jarboe, Phys. Plasmas 6, 4382 (1999)PHPAEN000006000011004382000001.

    F. J. Wysocki, J. C. Fernandez, I. Henins, T . R. Jarboe, and G. J. Marklin, Phys. Rev. Lett. 61, 2457 (1988).

    F. J. Wysocki, J. C. Fernandez, I. Henins, T. R. Jarboe, and G. J. Marklin, Phys. Rev. Lett. 65, 40 (1990).

    R. M. Mayo and G. J. Marklin, Phys. Fluids 31, 1812 (1988)PFLDAS000031000006001812000001.

    A. al-Karkhy, P. K. Browning, G. Cunningham, S. J. Gee, and M. G. Rusbridge, Phys. Rev. Lett. 70, 1814 (1993).



Close

Google Calendar

ADVERTISEMENT

Your Recent History Recent History Help

Recently Viewed

  1. Stable high beta spheromak equilibria using concave flux conservers
  2. Direct multiscale coupling of a transport code to gyrokinetic turbulence codes
  3. Resolving velocity space dynamics in continuum gyrokinetics
  4. Temperature and density characteristics of the Helicity Injected Torus-II spherical tokamak indicating closed flux sustainment using coaxial helicity injection
  5. Coaxial helicity injection in open-flux low-aspect-ratio toroidal discharges
Go to AIP Home
Copyright © American Institute of Physics
close