Journal article
Multiscale Nature of the Dissipation Range in Gyrokinetic Simulations of Alfvénic Turbulence
Physical review letters, Vol.115(2), pp.025003-025003
07/10/2015
DOI: 10.1103/PhysRevLett.115.025003
PMID: 26207474
Abstract
Nonlinear energy transfer and dissipation in Alfvén wave turbulence are analyzed in the first gyrokinetic simulation spanning all scales from the tail of the MHD range to the electron gyroradius scale. For typical solar wind parameters at 1 AU, about 30% of the nonlinear energy transfer close to the electron gyroradius scale is mediated by modes in the tail of the MHD cascade. Collisional dissipation occurs across the entire kinetic range k(⊥)ρ(I)≳1. Both mechanisms thus act on multiple coupled scales, which have to be retained for a comprehensive picture of the dissipation range in Alfvénic turbulence.
Details
- Title: Subtitle
- Multiscale Nature of the Dissipation Range in Gyrokinetic Simulations of Alfvénic Turbulence
- Creators
- D Told - Max Planck SocietyF Jenko - Max Planck SocietyJ M TenBarge - University of Maryland, College ParkG G Howes - University of IowaG W Hammett - Princeton Plasma Physics Laboratory
- Resource Type
- Journal article
- Publication Details
- Physical review letters, Vol.115(2), pp.025003-025003
- DOI
- 10.1103/PhysRevLett.115.025003
- PMID
- 26207474
- NLM abbreviation
- Phys Rev Lett
- ISSN
- 0031-9007
- eISSN
- 1079-7114
- Grant note
- DOI: 10.13039/501100000781, name: European Research Council, award: 277870; DOI: 10.13039/501100004963, name: Seventh Framework Programme, award: FP7/2007-2013; DOI: 10.13039/100000001, name: National Science Foundation, award: AGS-1054061; DOI: 10.13039/100000015, name: U.S. Department of Energy, award: DEFG0293ER54197, DE-AC02-05CH11231; DOI: 10.13039/100006132, name: Office of Science; name: National Energy Research Scientific Computing Center
- Language
- English
- Date published
- 07/10/2015
- Academic Unit
- Physics and Astronomy
- Record Identifier
- 9984199714802771
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