Effect of Microscopic Turbulence on Magnetic Island

Atsushi Furuya, Sanae Itoh, Masatosi Yagi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The dynamics of the magnetic island affected by the microscopic turbulence is analyzed using the renormalized reduced MHD equations. The evolution equations of the island width w(t) and rotation frequency ω(t) are derived in the cold ion approximation. It is found that the effects of the current flowing in a layer close to the separatrix are important to evaluate the effects of turbulent diffusions on the island rotation. As the result, the rotation of the magnetic island is driven by anomalous resistivity, and suppressed by anomalous ion viscosity and thermal conductivity.

Original languageEnglish
Pages (from-to)1261-1267
Number of pages7
Journaljournal of the physical society of japan
Volume71
Issue number5
DOIs
Publication statusPublished - May 1 2002

Fingerprint

magnetic islands
turbulence
turbulent diffusion
ions
thermal conductivity
viscosity
conductivity
electrical resistivity
approximation

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Effect of Microscopic Turbulence on Magnetic Island. / Furuya, Atsushi; Itoh, Sanae; Yagi, Masatosi.

In: journal of the physical society of japan, Vol. 71, No. 5, 01.05.2002, p. 1261-1267.

Research output: Contribution to journalArticle

Furuya, Atsushi ; Itoh, Sanae ; Yagi, Masatosi. / Effect of Microscopic Turbulence on Magnetic Island. In: journal of the physical society of japan. 2002 ; Vol. 71, No. 5. pp. 1261-1267.
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