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Impact of fast ions...
Impact of fast ions on density peaking in JET : fluid and gyrokinetic modeling
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- Eriksson, Frida, 1986 (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, 1989- (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 (author)
- KTH,Partikel- och astropartikelfysik
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- Ratynskaia, Svetlana (author)
- KTH,Rymd- och plasmafysik
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- Rubel, Marek (author)
- KTH,Fusionsplasmafysik
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- Stefániková, 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, Yushan (author)
- KTH,Fusionsplasmafysik
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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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- Skyman, Andreas, 1982 (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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- Salmi, Antti (author)
- Teknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT)
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- Tala, Tuomas (author)
- Teknologian Tutkimuskeskus (VTT),Technical Research Centre of Finland (VTT)
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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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- Cecconello, Marco (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,Tandemlaboratoriet
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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)
- 2019-05-29
- 2019
- English.
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In: Plasma Physics and Controlled Fusion. - : Institute of Physics Publishing (IOPP). - 0741-3335 .- 1361-6587. ; 61:7
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Abstract
Subject headings
Close
- The effect of fast ions on turbulent particle transport, driven by ion temperature gradient (ITG)/trapped electron mode turbulence, is studied. Two neutral beam injection (NBI) heated JET discharges in different regimes are analyzed at the radial position rho(t) = 0.6, one of them an L-mode and the other one an H-mode discharge. Results obtained from the computationally efficient fluid model EDWM and the gyro-fluid model TGLF are compared to linear and nonlinear gyrokinetic GENE simulations as well as the experimentally obtained density peaking. In these models, the fast ions are treated as a dynamic species with a Maxwellian background distribution. The dependence of the zero particle flux density gradient (peaking factor) on fast ion density, temperature and corresponding gradients, is investigated. The simulations show that the inclusion of a fast ion species has a stabilizing influence on the ITG mode and reduces the peaking of the main ion and electron density profiles in the absence of sources. The models mostly reproduce the experimentally obtained density peaking for the L-mode discharge whereas the H-mode density peaking is significantly underpredicted, indicating the importance of the NBI particle source for the H-mode density profile.
Subject headings
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Annan fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Other Physics Topics (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- particle transport
- gyrokinetic
- fluid
- fast ions
Publication and Content Type
- ref (subject category)
- art (subject category)
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Eriksson, Frida, ...
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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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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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Stefániková, 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, Yushan
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Zychor, I.
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Oberparleiter, M ...
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Skyman, Andreas, ...
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Nordman, Hans, 1 ...
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Strand, Pär, 196 ...
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Salmi, Antti
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Tala, Tuomas
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Andersson Sundén ...
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Binda, Federico, ...
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Cecconello, Marc ...
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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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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Other Physics To ...
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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NATURAL SCIENCES
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- 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