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 124005

Infrastructure

C3SE (Chalmers Centre for Computational Science and Engineering)

Subject Categories

Fusion, Plasma and Space Physics

DOI

10.1088/1361-6587/aa8aeb

More information

Latest update

11/12/2021