Spontaneous Formation of a Plasma Hole in a Rotating Magnetized Plasma: A Giant Burgers Vortex in a Compressible Fluid

Kenichi Nagaoka, Atsushi Okamoto, Shinji Yoshimura, Mitsuo Kono, Masayoshi Y. Tanaka

    Research output: Contribution to journalArticle

    28 Citations (Scopus)

    Abstract

    Spontaneous formation of a cylindrical density cavity, or ”plasma hole,” has been observed in a rotating magnetized plasma. Density of the plasma hole is one-tenth of that of ambient plasma and is bounded by a steep transition layer of the order of several ion Larmor radii. The flow velocity field associated with the plasma hole is experimentally determined, exhibiting a monopole vortical structure. It is found that the vorticity distribution is localized near the center of the hole and is identified as a Burgers vortex. This is the first experimental observation of a Burgers vortex in a plasma.

    Original languageEnglish
    JournalPhysical Review Letters
    Volume89
    Issue number7
    DOIs
    Publication statusPublished - Jan 1 2002

    Fingerprint

    rotating plasmas
    compressible fluids
    vortices
    Larmor radius
    transition layers
    monopoles
    vorticity
    flow velocity
    velocity distribution
    cavities
    ions

    All Science Journal Classification (ASJC) codes

    • Physics and Astronomy(all)

    Cite this

    Spontaneous Formation of a Plasma Hole in a Rotating Magnetized Plasma : A Giant Burgers Vortex in a Compressible Fluid. / Nagaoka, Kenichi; Okamoto, Atsushi; Yoshimura, Shinji; Kono, Mitsuo; Tanaka, Masayoshi Y.

    In: Physical Review Letters, Vol. 89, No. 7, 01.01.2002.

    Research output: Contribution to journalArticle

    Nagaoka, Kenichi ; Okamoto, Atsushi ; Yoshimura, Shinji ; Kono, Mitsuo ; Tanaka, Masayoshi Y. / Spontaneous Formation of a Plasma Hole in a Rotating Magnetized Plasma : A Giant Burgers Vortex in a Compressible Fluid. In: Physical Review Letters. 2002 ; Vol. 89, No. 7.
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