The interaction of two colliding Alfvén wave packets is described here by means of magnetohydrodynamics (MHD) and hybrid kinetic numerical simulations. The MHD evolution revisits the theoretical insights described by Moffatt, Parker, Kraichnan, Chandrasekhar, and Elsässer in which the oppositely propagating large-amplitude wave packets interact for a finite time, initiating turbulence. However, the extension to include compressive and kinetic effects, while maintaining the gross characteristics of the simpler classic formulation, also reveals intriguing features that go beyond the pure MHD treatment.
Titolo: | Revisiting a Classic: The Parker-Moffatt Problem | |
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Data di pubblicazione: | 2017 | |
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Handle: | http://hdl.handle.net/20.500.12571/7954 | |
Appare nelle tipologie: | 1.1 Articolo in rivista |
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2017_APJ_834_Pezzi.pdf | Versione Editoriale (PDF) | Accesso gratuito | Open Access Visualizza/Apri |
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