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 language | English (US) |
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Pages (from-to) | 3306-3309 |
Number of pages | 4 |
Journal | Physical Review Letters |
Volume | 78 |
Issue number | 17 |
DOIs | |
State | Published - Apr 28 1997 |
ASJC Scopus subject areas
- General Physics and Astronomy