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Generalised zonal m...
Generalised zonal modes in stationary axisymmetric plasmas
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- Graves, J. P. (författare)
- Ecole Polytech Fed Lausanne, SPC, CH-1015 Lausanne, Switzerland.
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- Wahlberg, Christer (författare)
- Uppsala universitet,Rymd- och plasmafysik
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Ecole Polytech Fed Lausanne, SPC, CH-1015 Lausanne, Switzerland Rymd- och plasmafysik (creator_code:org_t)
- 2017-04-05
- 2017
- Engelska.
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Ingår i: Plasma Physics and Controlled Fusion. - : IOP PUBLISHING LTD. - 0741-3335 .- 1361-6587. ; 59:5
- Relaterad länk:
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https://infoscience....
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visa fler...
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The MHD model enables derivation and analysis of the rich structure of geodesic acoustic modes (GAMs) and zonal modes in axisymmetric magnetic confined plasmas. The modes are identifiable from a single dispersion relation as two branches of slow magnetosonic continua. The lower frequency branch can be identified as a zonal flow (ZF), which in the simplified limit of static plasmas, has vanishing magnetic component. It is shown in this contribution that axisymmetric, and lesser known non-axisymmetric, zonal modes can be derived from MHD and kinetic models. The work provides a comprehensive derivation of the GAMs and ZF continua in stationary toroidally rotating plasmas, and investigates the exact solution and structure of a generalised family of zonal modes in static equilibria.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- zonal
- GAMs
- MHD
- toroidal rotation
- kinetic-MHD
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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