CPL - Chalmers Publication Library
| Utbildning | Forskning | Styrkeområden | Om Chalmers | In English In English Ej inloggad.

Toroidal modelling of plasma response and RMP field penetration

Yueqiang Liu (Institutionen för rymd- och geovetenskap, Transportteori) ; A Kirk ; Y Sun ; P Cahyna ; I.T Chapman ; P Denner ; G Fishpool ; A.M. Garofalo ; J.R. Harrison ; E. Nardon
Plasma Physics and Controlled Fusion (0741-3335). Vol. 54 (2012), 12, p. 124013.
[Artikel, refereegranskad vetenskaplig]

The penetration dynamics of the resonant magnetic perturbation (RMP) field is sim- ulated in the full toroidal geometry, under realistic plasma conditions in MAST experiments. The physics associated with several aspects of the RMP penetration - the plasma response and rotational screening, the resonant and non-resonant torques and the toroidal momentum balance - are highlighted. In particular, the plasma response is found to significantly amplify the non-resonant component of the RMP field for some of the MAST plasmas. A fast rotating plasma, in response to static external magnetic fields, experiences a more distributed electro- magnetic torque due to the resonance with continuum waves in the plasma. At fast plasma flow (such as for the MAST plasma), the electromagnetic torque is normally dominant over the neoclassical toroidal viscous (NTV) torque. However, at sufficiently slow plasma flow, the NTV torque can play a significant role in the toroidal momentum balance, thanks to the precession drift resonance enhanced, so called superbanana plateau regime.



Den här publikationen ingår i följande styrkeområden:

Läs mer om Chalmers styrkeområden  

Denna post skapades 2013-01-24. Senast ändrad 2015-02-26.
CPL Pubid: 172086

 

Läs direkt!

Lokal fulltext (fritt tillgänglig)

Länk till annan sajt (kan kräva inloggning)


Institutioner (Chalmers)

Institutionen för rymd- och geovetenskap, Transportteori (2010-2012)

Ämnesområden

Energi
Plasmafysik
Fusion
Plasmafysik med fusion

Chalmers infrastruktur