Selection of a Radial Wavelength of Zonal Flows

• Toda Shinichiro

  National Institute for Fusion Science Graduate University for Advanced Studies

• Itoh Kimitaka

  National Institute for Fusion Science

• Hallatschek Klaus

  Max-Planck-Institut für Plasmaphysik

• Yagi Masatoshi

  Research Institute for Applied Mechanics, Kyushu University

• Itoh Sanae-I.

  Research Institute for Applied Mechanics, Kyushu University

Abstract

The nonlinear dynamics of coherent zonal flows is studied with periodic boundary conditions. We study nonlinear differential equations of zonal flows, which were previously derived in an analytic wave-kinetic model. Competition between the short wavelength zonal flow and the long wavelength zonal flow is studied. Although many stable stationary solutions are allowed, the radial periodicity length turns out to be a value around a particular length, when random small amplitude perturbations are chosen as the initial flow state.

Journal

• Journal of the Physical Society of Japan

  Journal of the Physical Society of Japan 75 (10), 104501-, 2006

  THE PHYSICAL SOCIETY OF JAPAN

Keywords

• zonal flow
• nonlinear differential equations
• wavelength
• attractor
• linear stability

Details

• CRID: 1390001204190076032
• NII Article ID: 110004821510
• NII Article ID: 210000106359
• NII Book ID: AA00704814
• DOI: 10.1143/jpsj.75.104501
• BIBCODE: 2006JPSJ...75j4501T
• ISSN: 13474073
• ISSN: 00319015
• NDL BIB ID: 8085235
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8085235
• Web Site: http://journals.jps.jp/doi/pdf/10.1143/JPSJ.75.104501
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed