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Interpretative and predictive modelling of Joint European Torus collisionality scans

JET Contributors; Eriksson, F.; Fransson, E.; Oberparleiter, M.; Nordman, H.; Strand, P.; Salmi, A.; Tala, T.; Abduallev, S.; Abhangi, M.; Abreu, P.; Afanasev, V.; Afzal, M.; Aggarwal, K. M.; Ahlgren, T.; Aho-Mantila, L.; Aiba, N.; Airila, M.; Alarcon, T.; Albanese, R.; Alegre, D.; ... mehr

Abstract:
Transport modelling of Joint European Torus (JET) dimensionless collisionality scaling experiments in various operational scenarios is presented. Interpretative simulations at a fixed radial position are combined with predictive JETTO simulations of temperatures and densities, using the TGLF transport model. The model includes electromagnetic effects and collisions as well as □(→┬E ) X □(→┬B ) shear in Miller geometry. Focus is on particle transport and the role of the neutral beam injection (NBI) particle source for the density peaking. The experimental 3-point collisionality scans include L-mode, and H-mode (D and H and higher beta D plasma) plasmas in a total of 12 discharges. Experimental results presented in (Tala et al 2017 44th EPS Conf.) indicate that for the H-mode scans, the NBI particle source plays an important role for the density peaking, whereas for the L-mode scan, the influence of the particle source is small. In general, both the interpretative and predictive transport simulations support the experimental conclusions on the role of the NBI particle source for the 12 JET discharges.

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Verlagsausgabe §
DOI: 10.5445/IR/1000118458
Veröffentlicht am 17.04.2020
Originalveröffentlichung
DOI: 10.1088/1361-6587/ab2f45
Scopus
Zitationen: 1
Web of Science
Zitationen: 2
Cover der Publikation
Zugehörige Institution(en) am KIT Institut für Angewandte Thermofluidik (IATF)
Institut für Technische Physik (ITEP)
Institut für Technische Thermodynamik und Kältetechnik (ITTK)
Publikationstyp Zeitschriftenaufsatz
Publikationsjahr 2019
Sprache Englisch
Identifikator ISSN: 0032-1028, 0368-3281, 0741-3335, 1361-6587, 1879-2979, 2057-7648
KITopen-ID: 1000118458
Erschienen in Plasma physics and controlled fusion
Verlag IOP Publishing
Band 61
Heft 11
Seiten Art. Nr.: 115004
Schlagwörter turbulence, ITG, gyro-fluid, modelling, particle transport
Nachgewiesen in Dimensions
Web of Science
Scopus
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