Interpretative and predictive modelling of Joint European Torus collisionality scans
Artikel i vetenskaplig tidskrift, 2019

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)over-right-arrow x (b)over-right-arrow 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.

particle transport

gyro-fluid

modelling

turbulence

ITG

Författare

Frida Eriksson

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Emil Fransson

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Michael Oberparleiter

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Hans Nordman

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

Pär Strand

Chalmers, Rymd-, geo- och miljövetenskap, Astronomi och plasmafysik

A. Salmi

Teknologian Tutkimuskeskus (VTT)

T. Tala

Teknologian Tutkimuskeskus (VTT)

Plasma Physics and Controlled Fusion

0741-3335 (ISSN) 1361-6587 (eISSN)

Vol. 61 11 115004

Ämneskategorier

Fusion, plasma och rymdfysik

DOI

10.1088/1361-6587/ab2f45

Mer information

Senast uppdaterat

2022-10-09