Suppression of cross-field turbulent transport of passive scalar concentration in two dimensional magnetohydrodynamics

P. H. Diamond, A. V. Gruzinov

    Research output: Contribution to journalArticlepeer-review

    Abstract

    A theory of the cross-field turbulent transport of a passive scalar in a magnetized, two dimensional, electrically conducting fluid is presented. Both a renormalized quasilinear calculation and analyses of an exactly solvable simple model demonstrate that weak magnetic fields in a highly conducting medium are capable of strongly suppressing the turbulent cross-field transport by alteration of the Lagrangian correlation time of a scalar fluid element, without effect on the turbulence intensity. Passive scalar transport along the magnetic field is unchanged. An explicit expression for the effective cross-field diffusivity is given.

    Original languageEnglish (US)
    Pages (from-to)3306-3309
    Number of pages4
    JournalPhysical Review Letters
    Volume78
    Issue number17
    DOIs
    StatePublished - Apr 28 1997

    ASJC Scopus subject areas

    • Physics and Astronomy(all)

    Fingerprint

    Dive into the research topics of 'Suppression of cross-field turbulent transport of passive scalar concentration in two dimensional magnetohydrodynamics'. Together they form a unique fingerprint.

    Cite this