On the locality of magnetohydrodynamic turbulence scale fluxes

Bogdan Teaca, Daniele Carati, J. Domaradzki Andrzej

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The scale locality of energy fluxes for magnetohydrodynamics (MHD) is investigated numerically for stationary states of turbulence. Two types of forces are used to drive turbulence, a kinetic force that acts only on the velocity field and a kinetic-inductive force, which acts on the velocity and magnetic fields alike. The analysis is performed in spectral space, which is decomposed into a series of shells following a power law for the boundaries. The triadic transfers occurring among these shells are computed, and the fluxes and locality functions are obtained by partial summation over the relevant shells. Employing Kraichnan locality functions, values of 1/3 and 2/3 for the scaling exponents of the four MHD energy fluxes are found. These values are smaller than the value of 4/3 found for hydrodynamic turbulence. To better understand these results, an in depth analysis is performed on the total energy flux.

Original languageEnglish
Article number112307
JournalPhysics of Plasmas
Volume18
Issue number11
DOIs
Publication statusPublished - 1 Nov 2011
Externally publishedYes

ASJC Scopus subject areas

  • Condensed Matter Physics

Fingerprint Dive into the research topics of 'On the locality of magnetohydrodynamic turbulence scale fluxes'. Together they form a unique fingerprint.

  • Cite this