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Energy dissipation rates in low-\Rm MHD turbulence with mean shear: results for channel flow with spanwise field

D. Krasnov1 , O. Zikanov2 , J. Schumacher1 , T. Boeck1

1 Fakultät Maschinenbau, Technische Universität Ilmenau, Postfach 100565, 98684 Ilmenau, Germany }
2 University of Michigan-Dearborn, 48128 MI, USA

Abstract
We examine the changes in kinetic energy dissipation of a turbulent channel flow caused by a spanwise magnetic field. The numerical study is based on our simulation data from \cite{Krasnov:2008} obtained by direct and large eddy simulations. We find that the Joule dissipation can exceed the viscous dissipation in the weakly dissipative bulk region, but remains comparatively small in the turbulence-generating near-wall region. Tables1, Figs 6, Refs 12.

Magnetohydrodynamics 45, No. 2, 155-164, 2009 [PDF, 0.64 Mb]

Copyright: Institute of Physics, University of Latvia
Electronic edition ISSN 1574-0579
Printed edition ISSN 0024-998X
DOI: http://doi.org/10.22364/mhd