A gyrokinetic continuum code based on the numerical Lie transform (NLT) method

L Ye, Y Xu, X Xiao, Z Dai, S Wang - Journal of Computational Physics, 2016 - Elsevier
In this work, we report a novel gyrokinetic simulation method named numerical Lie transform
(NLT), which depends on a new physical model derived from the I-transform theory. In this …

Nonlinear gyrokinetic simulation of ion temperature gradient turbulence based on a numerical Lie-transform perturbation method

Y Xu, L Ye, Z Dai, X Xiao, S Wang - Physics of Plasmas, 2017 - pubs.aip.org
The electrostatic gyrokinetic nonlinear turbulence code NLT, which is based on a numerical
Lie-transform perturbation method, is developed. For improving the computational efficiency …

Envelope solitary waves exist and collide head-on without phase shift in a dusty plasma

H Zhang, X Qi, WS Duan, L Yang - Scientific Reports, 2015 - nature.com
The rarefactive KdV solitary waves in a dusty plasma have been extensively studied
analytically and found experimentally in the previous works. Though the envelope solitary …

Verification and validation of electrostatic turbulence simulation for numerical Lie transform code

N Yang, JQ Wang, DJ Liu, L Ye, HP Qu… - Plasma Physics and …, 2024 - iopscience.iop.org
This paper reports the verification and validation of a new gyrokinetic (GK) code, numerical
Lie transform (NLT), for electrostatic turbulence simulation in tokamak plasmas. Based on …

Landau damping of geodesic acoustic mode in toroidally rotating tokamaks

H Ren, J Cao - Physics of Plasmas, 2015 - pubs.aip.org
Geodesic acoustic mode (GAM) is analyzed by using modified gyro-kinetic (MGK) equation
applicable to low-frequency microinstabilities in a rotating axisymmetric plasma. Dispersion …

Application of High Dimensional B-Spline Interpolation in Solving the Gyro-Kinetic Vlasov Equation Based on Semi-Lagrangian Method

X Xiao, L Ye, Y Xu, S Wang - Communications in Computational …, 2017 - cambridge.org
The computation efficiency of high dimensional (3D and 4D) B-spline interpolation,
constructed by classical tensor product method, is improved greatly by precomputing the B …

Zonal flows in tokamaks with anisotropic pressure

H Ren - Physics of Plasmas, 2014 - pubs.aip.org
Zonal flows (ZFs) in a tokamak plasma with anisotropic pressure are investigated. The
dynamics of perpendicular and parallel pressures are determined by the Chew-Goldberger …

Implementation of field-aligned coordinates in a semi-Lagrangian gyrokinetic code for tokamak turbulence simulation

YE Lei, X Xiaotao, XU Yingfeng… - Plasma Science and …, 2018 - iopscience.iop.org
Field-aligned coordinates have been implemented in the gyrokinetic semi-Lagrangian code
NLT, Ye et al (2016 J. Comput. Phys. 316 180), to improve the computational efficiency for …

Simulation of the alpha particle heating and the helium ash source in an International Thermonuclear Experimental Reactor-like tokamak with an internal transport …

L Ye, W Guo, X Xiao, Z Dai, S Wang - Physics of Plasmas, 2014 - pubs.aip.org
A guiding center orbit following code, which incorporates a set of non-singular coordinates
for orbit integration, was developed and applied to investigate the alpha particle heating in …

Impurity effect on geodesic acoustic mode in toroidally rotating tokamak plasmas

B Xie, W Guo, N Xiang - Plasma Physics and Controlled Fusion, 2017 - iopscience.iop.org
The geodesic acoustic modes (GAMs) are analytically investigated in toroidally rotating
tokamak plasmas with impurity ions such as carbon and tungsten by using the gyrokinetic …