Consistent theory of turbulent transport in two-dimensional magnetohydrodynamics

Research output: Contribution to journalArticle

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Abstract

A theory of turbulent transport is presented in two-dimensional magnetohydrodynamics with background shear and magnetic fields. We provide theoretical predictions for the transport of magnetic flux, momentum, and particles and turbulent intensities, which show stronger reduction compared with the hydrodynamic case, with different dependences on shearing rate, magnetic field, and values of viscosity, Ohmic diffusion, and particle diffusivity. In particular, particle transport is more severely suppressed than momentum transport, effectively leading to a more efficient momentum transport. The role of magnetic fields in quenching transport without altering the amplitude of flow velocity and in inhibiting the generation of shear flows is elucidated. Implications of the results are discussed.

Original languageEnglish
Article number084504
JournalPhysical Review Letters
Volume96
Issue number8
DOIs
Publication statusPublished - 3 Mar 2006
Externally publishedYes

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magnetohydrodynamics
momentum
magnetic fields
shearing
shear flow
diffusivity
magnetic flux
flow velocity
quenching
hydrodynamics
viscosity
shear
predictions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Consistent theory of turbulent transport in two-dimensional magnetohydrodynamics. / Kim, Eun Jin.

In: Physical Review Letters, Vol. 96, No. 8, 084504, 03.03.2006.

Research output: Contribution to journalArticle

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