Tractable flux-driven temperature, density, and rotation profile evolution with the quasilinear gyrokinetic transport model QuaLiKiz
Journal article, 2017
Quasilinear turbulent transport models are a successful tool for prediction of core tokamak plasma profiles in many regimes. Their success hinges on the reproduction of local nonlinear gyrokinetic fluxes. We focus on significant progress in the quasilinear gyrokinetic transport model QuaLiKiz (Bourdelle et al 2016 Plasma Phys. Control. Fusion 58 014036), which employs an approximated solution of the mode structures to significantly speed up computation time compared to full linear gyrokinetic solvers. Optimisation of the dispersion relation solution algorithm within integrated modelling applications leads to flux calculations x 10(6-7) faster than local nonlinear simulations. This allows tractable simulation of flux-driven dynamic profile evolution including all transport channels: ion and electron heat, main particles, impurities, and momentum. Furthermore, QuaLiKiz now includes the impact of rotation and temperature anisotropy induced poloidal asymmetry on heavy impurity transport, important for W-transport applications. Application within the JETTO integrated modelling code results in 1 s of JET plasma simulation within 10 h using 10 CPUs. Simultaneous predictions of core density, temperature, and toroidal rotation profiles for both JET hybrid and baseline experiments are
gradient mode
integrated modelling
complex error function
barriers
tokamak
aspect
turbulence simulations
microstability
computation
ratio
gyrokinetics
tokamak
turbulence
Author
J. Citrin
The French Alternative Energies and Atomic Energy Commission (CEA)
Dutch Institute for Fundamental Energy Research (DIFFER)
C. Bourdelle
The French Alternative Energies and Atomic Energy Commission (CEA)
FJ Casson
Culham Science Centre
C. Angioni
Max Planck Society
N. Bonanomi
University of Milano-Bicocca
Consiglo Nazionale Delle Richerche
Y. Camenen
Physique des Interactions Ioniques et Moleculaires
X. Garbet
The French Alternative Energies and Atomic Energy Commission (CEA)
L. Garzotti
Culham Science Centre
Frank Jenko
Max Planck Society
O Gürcan
Laboratoire de physique des plasmas
F. Koechl
Atominstitut der Osterreichischen Universitaten
F. Imbeaux
The French Alternative Energies and Atomic Energy Commission (CEA)
O. Linder
Eindhoven University of Technology
Dutch Institute for Fundamental Energy Research (DIFFER)
K. van de Plassche
Eindhoven University of Technology
Dutch Institute for Fundamental Energy Research (DIFFER)
Pär Strand
Chalmers, Earth and Space Sciences, Plasma Physics and Fusion Energy
G. Szepesi
Culham Science Centre
Consiglo Nazionale Delle Richerche
Plasma Physics and Controlled Fusion
0741-3335 (ISSN) 1361-6587 (eISSN)
Vol. 59 12 124005Infrastructure
C3SE (Chalmers Centre for Computational Science and Engineering)
Subject Categories
Fusion, Plasma and Space Physics
DOI
10.1088/1361-6587/aa8aeb