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Gyrokinetic simulat...
Gyrokinetic simulations of particle transport in pellet fuelled JET discharges
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- Tegnered, Daniel, 1987 (author)
- Chalmers Univ Technol, SE-41296 Gothenburg, Sweden.;Chalmers Univ Technol, Dept Earth & Space Sci, SE-41296 Gothenburg, Sweden.,Chalmers tekniska högskola,Chalmers University of Technology
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- Bergsåker, Henric (author)
- KTH,Fusionsplasmafysik
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- Bykov, Igor (author)
- KTH,Fusionsplasmafysik
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show more...
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- Frassinetti, Lorenzo (author)
- KTH,Fusionsplasmafysik
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- Garcia-Carrasco, Alvaro (author)
- KTH,Fusionsplasmafysik
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- Hellsten, Torbjörn (author)
- KTH,Fusionsplasmafysik
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- Johnson, Thomas (author)
- KTH,Fusionsplasmafysik
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- Menmuir, Sheena (author)
- KTH,Fusionsplasmafysik
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- Petersson, Per (author)
- KTH,Fusionsplasmafysik
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- Rachlew, Elisabeth, 1944- (author)
- KTH,Fysik
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- Ratynskaia, Svetlana (author)
- KTH,Rymd- och plasmafysik
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- Rubel, Marek (author)
- KTH,Fusionsplasmafysik
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- Stefanikova, Estera (author)
- KTH,Fusionsplasmafysik
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- Ström, Petter (author)
- KTH,Fusionsplasmafysik
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- Tholerus, Emmi (author)
- KTH,Fusionsplasmafysik
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- Tolias, Panagiotis (author)
- KTH,Rymd- och plasmafysik
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- Olivares, Pablo Vallejos (author)
- KTH,Fusionsplasmafysik
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- Weckmann, Armin (author)
- KTH,Fusionsplasmafysik
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- Zhou, Yushun (author)
- KTH,Fusionsplasmafysik,Fusion Plasma Phys, EES, SE-10044 Stockholm, Sweden.
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- Zychor, I. (author)
- Natl Ctr Nucl Res, PL-05400 Otwock, Poland.
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- Oberparleiter, Michael, 1986 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nordman, Hans, 1957 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Strand, Pär, 1968 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Garzotti, Luca (author)
- Culham Science Centre
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- Lupelli, I. (author)
- Culham Science Centre
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- Cecconello, Marco (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Romanelli, M. (author)
- Culham Science Centre
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- Valovic, Martin (author)
- Culham Science Centre
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- Andersson Sundén, Erik (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Binda, Federico, 1987- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Conroy, Sean (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Dzysiuk, Nataliia (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Ericsson, Göran (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Eriksson, Jacob, Dr, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Hellesen, Carl, 1980- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Hjalmarsson, Anders (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Possnert, Göran, 1951- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Sjöstrand, Henrik, 1978- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Skiba, Mateusz, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
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- Weiszflog, Matthias (author)
- Uppsala universitet,Tillämpad kärnfysik
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Chalmers Univ Technol, SE-41296 Gothenburg, Sweden;Chalmers Univ Technol, Dept Earth & Space Sci, SE-41296 Gothenburg, Sweden. Chalmers tekniska högskola (creator_code:org_t)
- 2017-08-11
- 2017
- English.
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In: Plasma Physics and Controlled Fusion. - : IOP PUBLISHING LTD. - 0741-3335 .- 1361-6587. ; 59:10
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
Close
- Pellet injection is a likely fuelling method of reactor grade plasmas. When the pellet ablates, it will transiently perturb the density and temperature profiles of the plasma. This will in turn change dimensionless parameters such as a/L-n, a/L-T and plasma beta. The microstability properties of the plasma then changes which influences the transport of heat and particles. In this paper, gyrokinetic simulations of a JET L-mode pellet fuelled discharge are performed. The ion temperature gradient/trapped electron mode turbulence is compared at the time point when the effect from the pellet is the most pronounced with a hollow density profile and when the profiles have relaxed again. Linear and nonlinear simulations are performed using the gyrokinetic code GENE including electromagnetic effects and collisions in a realistic geometry in local mode. Furthermore, global nonlinear simulations are performed in order to assess any nonlocal effects. It is found that the positive density gradient has a stabilizing effect that is partly counteracted by the increased temperature gradient in the this region. The effective diffusion coefficients are reduced in the positive density region region compared to the intra pellet time point. No major effect on the turbulent transport due to nonlocal effects are observed.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- JET
- pellet
- microturbulence
- transport
- gyrokinetic
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Tegnered, Daniel ...
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Bergsåker, Henri ...
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Bykov, Igor
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Frassinetti, Lor ...
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Garcia-Carrasco, ...
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Hellsten, Torbjö ...
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show more...
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Johnson, Thomas
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Menmuir, Sheena
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Petersson, Per
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Rachlew, Elisabe ...
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Ratynskaia, Svet ...
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Rubel, Marek
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Stefanikova, Est ...
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Ström, Petter
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Tholerus, Emmi
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Tolias, Panagiot ...
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Olivares, Pablo ...
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Weckmann, Armin
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Zhou, Yushun
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Zychor, I.
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Oberparleiter, M ...
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Nordman, Hans, 1 ...
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Strand, Pär, 196 ...
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Garzotti, Luca
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Lupelli, I.
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Cecconello, Marc ...
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Romanelli, M.
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Valovic, Martin
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Andersson Sundén ...
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Binda, Federico, ...
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Conroy, Sean
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Dzysiuk, Natalii ...
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Ericsson, Göran
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Eriksson, Jacob, ...
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Hellesen, Carl, ...
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Hjalmarsson, And ...
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Possnert, Göran, ...
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Sjöstrand, Henri ...
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Skiba, Mateusz, ...
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Weiszflog, Matth ...
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Fusion Plasma an ...
- Articles in the publication
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Plasma Physics a ...
- By the university
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Royal Institute of Technology
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Chalmers University of Technology
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Uppsala University