Spectral anisotropies in high resolution three-dimensional simulations

Landi, S. and Franci, L. and Papini, E. and Matteini, L. and Verdini, A. and Hellinger, P. (2019) Spectral anisotropies in high resolution three-dimensional simulations. Il nuovo cimento C, 42 (1). pp. 1-5. ISSN 1826-9885

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We present a 3D high resolution hybrid particle-in-cells simulation of decaying Alv´enic turbulence and we compare its results with an analogous simulations at MHD scales. We show that, while MHD simulations show spectral anisotropies in agreement with critical balance arguments, at ion scale magnetic spectrum is more isotropic than predicted. This suggest that intermittent smallscales structures, like reconnecting current sheets can play a fundamental role in transferring energy across kinetic scales.

Item Type: Article
Subjects: 500 Scienze naturali e Matematica > 530 Fisica
Depositing User: Marina Spanti
Date Deposited: 27 Nov 2020 09:57
Last Modified: 27 Nov 2020 09:57
URI: http://eprints.bice.rm.cnr.it/id/eprint/20383

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