Effect of Microscopic Turbulence on Magnetic Island

Atsushi Furuya, Sanae I. Itoh, Masatosi Yagi

Research output: Contribution to journalArticle

10 Citations (Scopus)


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
Issue number5
Publication statusPublished - May 1 2002


All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

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