Two-dimensional magnetohydrodynamic turbulence with large and small energy-injection length scales

Banerjee, Debarghya and Pandit, Rahul (2019) Two-dimensional magnetohydrodynamic turbulence with large and small energy-injection length scales. In: PHYSICS OF FLUIDS, 31 (6).

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Abstract

Two-dimensional magnetohydrodynamics, forced at (a) large length scales or (b) small length scales, display turbulent, but statistically steady, states with widely different statistical properties. We present a systematic, comparative study of these two cases (a) and (b) by using direct numerical simulations. We find that, in case (a), there is energy equipartition between the magnetic and velocity fields, whereas, in case (b), such equipartition does not exist. By computing various probability distribution functions, we show that case (a) displays extreme events that are much less common in case (b).

Item Type:	Journal Article
Publication:	PHYSICS OF FLUIDS
Publisher:	AMER INST PHYSICS
Additional Information:	copyright for this article is belongs to AMER INST PHYSICS
Department/Centre:	Division of Physical & Mathematical Sciences > Physics
Date Deposited:	30 Jul 2019 10:23
Last Modified:	30 Jul 2019 10:23
URI:	http://eprints.iisc.ac.in/id/eprint/63335

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