Search: WFRF:(Sjöstrand H)
> (2015-2019)
> (2016)
> Petersson Per >
Gyrokinetic study o...
Gyrokinetic study of turbulence suppression in a JET-ILW power scan
-
- Doerk, H. (author)
- Culham Sci Ctr, EUROfus Consortium, JET, Abingdon OX14 3DB, Oxon, England.;Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany.
-
- Bergsåker, Henric (author)
- KTH,Fusionsplasmafysik
-
- Bykov, Igor (author)
- KTH,Fusionsplasmafysik
-
show more...
-
- Elevant, Thomas (author)
- KTH,Fusionsplasmafysik
-
- Frassinetti, Lorenzo (author)
- KTH,Fusionsplasmafysik
-
- Garcia-Carrasco, Alvaro (author)
- KTH,Fusionsplasmafysik
-
- Hellsten, Torbjörn (author)
- KTH,Fusionsplasmafysik
-
- Ivanova, Darya (author)
- KTH,Fusionsplasmafysik
-
- Johnson, Thomas (author)
- KTH,Fusionsplasmafysik
-
- Menmuir, Sheena (author)
- KTH,Fusionsplasmafysik
-
- Petersson, Per (author)
- KTH,Fusionsplasmafysik
-
- Rachlew, Elisabeth, 1944- (author)
- KTH,Fysik
-
- Rubel, Marek (author)
- KTH,Fusionsplasmafysik
-
- Ström, Petter (author)
- KTH,Fusionsplasmafysik
-
- Tholerus, Emmi (author)
- KTH,Fusionsplasmafysik
-
- Weckmann, Armin (author)
- KTH,Fusionsplasmafysik
-
- Zychor, I. (author)
- Inst Plasma Phys & Laser Microfus, PL-01497 Warsaw, Poland.
-
- Andersson Sundén, Erik (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Asp, E. (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Binda, Federico, 1987- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Cecconello, Marco (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Conroy, Sean (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Dzysiuk, Nataliia (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Ericsson, Göran (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Eriksson, Jacob, Dr, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Hellesen, Carl, 1980- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Hjalmarsson, Anders (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Possnert, Göran, 1951- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Sjöstrand, Henrik, 1978- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Skiba, Mateusz, 1985- (author)
- Uppsala universitet,Tillämpad kärnfysik
-
- Weiszflog, Matthias (author)
- Uppsala universitet,Tillämpad kärnfysik
-
show less...
-
Culham Sci Ctr, EUROfus Consortium, JET, Abingdon OX14 3DB, Oxon, England;Max Planck Inst Plasma Phys, Boltzmannstr 2, D-85748 Garching, Germany. Fusionsplasmafysik (creator_code:org_t)
- 2016-09-14
- 2016
- English.
-
In: Plasma Physics and Controlled Fusion. - : IOP PUBLISHING LTD. - 0741-3335 .- 1361-6587. ; 58:11
- Related links:
-
https://idus.us.es/b...
-
show more...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
https://urn.kb.se/re...
-
show less...
Abstract
Subject headings
Close
- For exploring tokamak operation regimes that deliver both high beta and good energy confinement, power scans at JET with ITER-like wall have been performed. Relatively weak degradation of the confinement time coincides with increased core temperature of the ions at high power. The changes in core turbulence characteristics during a power scan with an optimized (broad) q profile are analyzed by means of nonlinear gyrokinetic simulations. The increase in beta is crucial for stabilizing ion temperature gradient driven turbulence, accompanied by increased ion to electron temperature ratio, the presence of a dynamic fast ion species, as well as the geometric stabilization by increased thermal and suprathermal pressure. A sensitivity study with respect to the q profile reveals that electromagnetic effects are more pronounced at larger values of q. Further, it is confirmed that turbulence suppression due to rotation becomes less effective in such strongly electromagnetic systems. Electrostatic simplified models may thus perform well in present-day devices, in which high beta is often correlated with high rotation, but provide poor extrapolation towards low rotation devices. Implications for ITER and reactor plasmas are discussed.
Subject headings
- NATURVETENSKAP -- Fysik -- Fusion, plasma och rymdfysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Fusion, Plasma and Space Physics (hsv//eng)
Keyword
- tokamak
- gyrokinetic simulation
- thermal transport
- electromagnetic turbulence
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
-
Doerk, H.
-
Bergsåker, Henri ...
-
Bykov, Igor
-
Elevant, Thomas
-
Frassinetti, Lor ...
-
Garcia-Carrasco, ...
-
show more...
-
Hellsten, Torbjö ...
-
Ivanova, Darya
-
Johnson, Thomas
-
Menmuir, Sheena
-
Petersson, Per
-
Rachlew, Elisabe ...
-
Rubel, Marek
-
Ström, Petter
-
Tholerus, Emmi
-
Weckmann, Armin
-
Zychor, I.
-
Andersson Sundén ...
-
Asp, E.
-
Binda, Federico, ...
-
Cecconello, Marc ...
-
Conroy, Sean
-
Dzysiuk, Natalii ...
-
Ericsson, Göran
-
Eriksson, Jacob, ...
-
Hellesen, Carl, ...
-
Hjalmarsson, And ...
-
Possnert, Göran, ...
-
Sjöstrand, Henri ...
-
Skiba, Mateusz, ...
-
Weiszflog, Matth ...
-
show less...
- About the subject
-
- NATURAL SCIENCES
-
NATURAL SCIENCES
-
and Physical Science ...
-
and Fusion Plasma an ...
- Articles in the publication
-
Plasma Physics a ...
- By the university
-
Royal Institute of Technology
-
Uppsala University