Title
The TOKAM3X code for edge turbulence fluid simulations of tokamak plasmas in versatile magnetic geometries.
Abstract
The new code TOKAM3X simulates plasma turbulence in full torus geometry including the open field lines of the Scrape-off Layer (SOL) and the edge closed field lines region in the vicinity of the separatrix. Based on drift-reduced Braginskii equations, TOKAM3X is able to simulate both limited and diverted plasmas. Turbulence is flux driven by incoming particles from the core plasma and no scale separation between the equilibrium and the fluctuations is assumed so that interactions between large scale flows and turbulence are consistently treated. Based on a domain decomposition, specific numerical schemes are proposed using conservative finite-differences associated to a semi-implicit time advancement. The process computation is multi-threaded and based on MPI and OpenMP libraries. In this paper, fluid model equations are presented together with the proposed numerical methods. The code is verified using the manufactured solution technique and validated through documented simple experiments. Finally, first simulations of edge plasma turbulence in X-point geometry are also introduced in a JET geometry. Modelling of the turbulent cross-field transport in tokamak edge plasma.Development of a fluid code TOKAM3X to simulate turbulence.Code verification and validation.First X-point simulations in a JET-like geometry.
Year
DOI
Venue
2016
10.1016/j.jcp.2016.05.038
J. Comput. Physics
Keywords
Field
DocType
Tokamak modelling,Edge plasma,Plasma turbulence,Fusion
Computational physics,Tokamak,K-epsilon turbulence model,Field line,Turbulence,Torus,Numerical analysis,K-omega turbulence model,Domain decomposition methods,Physics
Journal
Volume
Issue
ISSN
321
C
0021-9991
Citations 
PageRank 
References 
6
0.90
1
Authors
8
Name
Order
Citations
PageRank
P. Tamain1173.89
H. Bufferand291.76
Guido Ciraolo360.90
C. Colin460.90
D. Galassi560.90
Philippe Ghendrih6173.64
F. Schwander7163.07
Eric Serre873.03