.png){kind=icon}
.png){kind=icon}
Return
Gyrokinetic simulation of ITG turbulence with toroidal geometry including the magnetic axis by using field-aligned coordinates
.png){kind=icon}
OA
AI
Z
Y
L
X
S
DOI：10.1016/j.cpc.2019.04.004.png)
.png){kind=icon}
.png){kind=icon}
Share.png){kind=icon}
Save
Abstract
En 中文
Simulation domain in field-aligned coordinates of the electrostatic gyrokinetic nonlinear turbulence global code, NLT, is extended to include the magnetic axis. The artificial boundary near the magnetic axis is replaced by the natural boundary. The singularity at the magnetic axis in Vlasov solver is treated by considering the spatial relation of fixed grid points in field-aligned coordinates. A new Poisson's equation solver is developed, the coefficient matrix of algebraic equations is derived by using Gauss's theorem. Linear ITG modes test, Rosenbluth-Hinton test and nonlinear relaxation test of the ITG turbulence with adiabatic electrons are performed. The gyrocenter conservation is much improved by including the magnetic axis in the simulation domain. (C) 2019 Elsevier B.V. All rights reserved.
Keywords:
Gyrokinetic simulation
Numerical Lie transform
Magnetic axis
AI Summary
Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.
Journal
IF:
3.4
Papers:
1.2W
Citations:
3.7W
Organization
Cited Papers