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Modelling of the ed...
Modelling of the edge plasma of MAST in the presence of resonant magnetic perturbations
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Rozhansky, V. (författare)
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Molchanov, P. (författare)
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Kaveeva, E. (författare)
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Voskoboynikov, S. (författare)
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Kirk, A. (författare)
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Nardon, E. (författare)
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Coster, D. (författare)
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- Tendler, Michael (författare)
- KTH,Alfvénlaboratoriet,Fusionsplasmafysik
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(creator_code:org_t)
- 2011-07-07
- 2011
- Engelska.
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Ingår i: Nuclear Fusion. - : IOP Publishing. - 0029-5515 .- 1741-4326. ; 51:8, s. 083009-
- Relaterad länk:
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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 transport code B2SOLPS5.2 is used to simulate L- and H-mode discharges on MAST with and without resonant magnetic perturbations (RMP). The simulated variation of the radial electric field (less negative for RMP) and toroidal rotation (spin-up in the co-current direction for RMP) is in agreement with the experiment. The pump-out effect in the L-modes with high and medium plasma density and in the H-mode is caused by the additional neoclassical radial plasma flow in the electric field modified due to the electron loss along the stochastic field lines. The pump-out in the low-density L-mode can be reproduced only by a significant rise in the turbulent transport coefficients. The modelling suggests strong RMP screening. An analytical model for RMP screening is proposed.
Ämnesord
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Nyckelord
- radial electric-field
- tokamak
- conductivity
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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