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Generalized plasma dispersion function for a plasma with a kappa-Maxwellian velocity distribution
A generalized plasma dispersion function has previously been obtained for waves in plasmas with isotropic kappa distributions for arbitrary real kappa [Mace and Hellberg, Phys. Plasmas 2, 2098 (1995)]...

Laminar plasma dynamos

Phys. Plasmas 9, 1491 (2002); doi:10.1063/1.1467058

Issue Date: May 2002

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Zhehui Wang, Vladimir I. Pariev, Cris W. Barnes, and Daniel C. Barnes
Los Alamos National Laboratory, Los Alamos, New Mexico 87545
A new kind of dynamo utilizing flowing laboratory plasmas has been identified. The conversion of plasma kinetic energy to magnetic energy is verified numerically by kinematic dynamo simulations for magnetic Reynolds numbers above 210. As opposed to intrinsically-turbulent liquid-sodium dynamos, the proposed plasma dynamo corresponds to laminar flow topology. Modest plasma parameters (1–20 eV temperatures, 1019–1020 m–3 densities in 0.3–1.0 m scale-lengths driven by velocities on the order of the Alfvén critical ionization velocity) self-consistently satisfy the conditions needed for the magnetic field amplication. Growth rates for plasma dynamos are obtained numerically with different geometry and magnetic Reynolds numbers. Magnetic-field-free coaxial plasma guns can be used to sustain the plasma flow and the dynamo. ©2002 American Institute of Physics.
History: Received 7 November 2001; accepted 8 February 2002
Permalink: http://link.aip.org/link/?PHPAEN/9/1491/1
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KEYWORDS and PACS

Keywords
PACS
  • 52.30.-q
    Physics of plasmas and electric discharges Plasma dynamics and flow
  • 47.65.+a
    Fluid dynamics Magnetohydrodynamics and electrohydrodynamics
  • 52.65.Kj
    Physics of plasmas and electric discharges Plasma simulation Magnetohydrodynamic and fluid equation
  • 52.72.+v
    Physics of plasmas and electric discharges Laboratory studies of space- and astrophysical-plasma processes
  • YEAR: 2002

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ISSN:
1070-664X (print)   1089-7674 (online)
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REFERENCES (23)
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  1. H. K. Moffat, Magnetic Field Generation in Electrically Conducting Fluids (Cambridge University Press, Cambridge, UK, 1978).
  2. R. M. Kulsrud, Annu. Rev. Astron. Astrophys. 37, 37 (1999).
  3. See, for example, Ya B. Zeldovich, A. A. Ruzmaikin, and D. D. Sokoloff, Magnetic Field in Astrophysics (Gordon & Breach, London, 1983);
  4. P. H. Roberts and A. M. Soward, Annu. Rev. Fluid Mech. 24, 459 (1992).
  5. A. Tilgner, Phys. Earth Planet. Inter. 117, 171 (2000).
  6. T. R. Jarboe, Plasma Phys. Controlled Fusion 36, 945 (1994).
  7. C. W. Barnes, J. C. Fernandez, I. Henins et al., Phys. Fluids 29, 3415 (1986).
  8. K. F. Schoenberg, R. W. Moses, and R. L. Hagenson, Phys. Fluids 27, 1671 (1984).
  9. H. Ji, S. C. Prager, A. F. Almagri, J. S. Scarff, Y. Yagi, Y. Hirano, K. Hattori, and H. Toyama, Phys. Plasmas 3, 1935 (1996).
  10. A. Gailitis, O. Lielausis, E. Platacis, S. Dement'ev, A. Cifersons, G. Gerbeth, T. Gundrum, F. Stefani, M. Christen, and G. Will, Phys. Rev. Lett. 86, 3024 (2001).
  11. A. B. Reighard, and M. R. Brown, Phys. Rev. Lett. 86, 2794 (2001).
  12. N. L. Peffley, A. B. Cawthorne, and D. P. Lathrop, Phys. Rev. E 61, 5287 (2000).
  13. P. H. Roberts and T. H. Jensen, Phys. Fluids B 5, 2657 (1993).
  14. G. A. Glatzmaier and P. H. Roberts, Int. J. Eng. Sci. 36, 1325 (1998).
  15. A. Kageyama and T. Sato, Phys. Plasmas 6, 771 (1999).
  16. S. I. Braginskii, in Reviews of Plasma Physics (Consultants Bureau, New York, 1965), Vol. 1, p. 205.
  17. N. Brenning, Space Sci. Rev. 59, 209 (1992).
  18. K. F. Schoenberg, R. A. Gerwin, R. W. Moses, Jr., J. T. Scheuer, and H. P. Wagner, Phys. Plasmas 5, 2090 (1998).
  19. V. V. Vasilev and V. E. Strelnitskij, Diamond Relat. Mater. 8, 202 (1999).
  20. Z. Wang and C. W. Barnes, Phys. Plasmas 8, 4218 (2001).
  21. R. J. Goldston and P. H. Rutherford, Introduction to Plasma Physics (IOP, Bristol, UK, 1995).
  22. R. G. Kleva and J. F. Drake, Phys. Plasmas 2, 4455 (1995).
  23. V. I. Pariev, S. A. Colgate, and J. M. Finn, to be submitted to Astrophys. J.
  24. V. I. Pariev, Ph.D. thesis, University of Arizona, Tucson, 2001.

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