Self-sustained plasma turbulence due to current diffusion

Masatoshi Yagi, S. I. Itoh, K. Itoh, A. Fukuyama

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Plasma turbulence and anomalous transport due to the electrostatic and electromagnetic current diffusive interchange modes are studied analytically and numerically, based on the magnetohydrodynamic model. Analytically, the ion and electron thermal conductivities which are valid in the electromagnetic regime are evaluated by use of the one-point renormalization method and compared with those in the electrostatic regime. It is found that the electromagnetic electron nonlinearity in Ohm's law further drives a new instability, which is stronger than that in the electrostatic case. Numerically, two dimensional nonlinear simulations are performed to investigate the nonlinear destabilization mechanisms and the characteristics of the self-sustained turbulence. The validity of the self-sustained turbulence theory based on the one-point renormalization method is also confirmed by numerical results.

Original languageEnglish
Pages (from-to)S189-S195
JournalJournal of the Korean Physical Society
Volume31
Issue numberSUPPL. PART 2
Publication statusPublished - Dec 1 1997

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plasma turbulence
electrostatics
electromagnetism
turbulence
Ohms law
destabilization
magnetohydrodynamics
electrons
thermal conductivity
nonlinearity
ions
simulation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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Yagi, M., Itoh, S. I., Itoh, K., & Fukuyama, A. (1997). Self-sustained plasma turbulence due to current diffusion. Journal of the Korean Physical Society, 31(SUPPL. PART 2), S189-S195.

Self-sustained plasma turbulence due to current diffusion. / Yagi, Masatoshi; Itoh, S. I.; Itoh, K.; Fukuyama, A.

In: Journal of the Korean Physical Society, Vol. 31, No. SUPPL. PART 2, 01.12.1997, p. S189-S195.

Research output: Contribution to journalArticle

Yagi, M, Itoh, SI, Itoh, K & Fukuyama, A 1997, 'Self-sustained plasma turbulence due to current diffusion', Journal of the Korean Physical Society, vol. 31, no. SUPPL. PART 2, pp. S189-S195.
Yagi M, Itoh SI, Itoh K, Fukuyama A. Self-sustained plasma turbulence due to current diffusion. Journal of the Korean Physical Society. 1997 Dec 1;31(SUPPL. PART 2):S189-S195.
Yagi, Masatoshi ; Itoh, S. I. ; Itoh, K. ; Fukuyama, A. / Self-sustained plasma turbulence due to current diffusion. In: Journal of the Korean Physical Society. 1997 ; Vol. 31, No. SUPPL. PART 2. pp. S189-S195.
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