43 citations · 83 across the 10 of their papers we have counts for
10 papers
Spontaneous spin-up induced by turbulence-driven topological transition of orbits in a tokamak plasma
Shaojie Wang
Spontaneous spin-up are widely observed in tokamak plasmas, which is crucially important for plasma confinement. A kinetic theory is proposed to show that a toroidal rotation of co…
Gyrokinetic simulation of ITG turbulence with toroidal geometry including the magnetic axis by using field-aligned coordinates
Dai Zongliang, Xu Yingfeng, Ye Lei +2
Abstract Simulation domain in field-aligned coordinates of the electrostatic gyrokinetic nonlinear turbulence global code, NLT, is extended to include the magnetic axis. The artifi…
In-Out impurity density asymmetry due to the Coriolis force in a rotating tokamak plasma
Chengkang Pan, Shaojie Wang, Xiaotao Xiao +3
The effect of the Coriolis force due to the impurity toroidal and poloidal rotation on the in-out impurity density asymmetry in a rotating tokamak plasma is identified. The in-out…
Anomalous pinch of turbulent plasmas driven by the magnetic-drift-induced Lorentz force through the Stokes-Einstein relation
Shaojie Wang
It is found that the Lorentz force generated by the magnetic drift drives a generic plasma pinch fluxes of particle, energy and momentum through the Stokes-Einstein relation. The p…
Transport equation for plasmas in a stationary-homogeneous turbulence
Shaojie Wang
For a plasma in a stationary homogeneous turbulence, the Fokker-Planck equation is derived from the nonlinear Vlasov equation by introducing the entropy principle. The ensemble ave…
Spontaneous toroidal rotation, anomalous radial particle flux, and the electron-ion asymmetric anomalous viscous damping
Shaojie Wang
AA spontaneous toroidal rotation due to the electron-ion asymmetric anomalous viscous damping and the turbulent radial particle flux has been found, which explains the experimental…
Parallel acceleration due to the radial electric field in a magnetized plasma with low-frequency turbulence
Shaojie Wang
A new physical mechanism of the parallel acceleration of a turbulent magnetized plasma is discovered by using a Fokker-Planck phase space stochastic transport equation. It is found…
Co-current rotation of the bulk ions due to the ion orbit loss at the edge of a tokamak plasma
Chengkang Pan, Shaojie Wang, Jing Ou
Flux-surface-averaged momentum loss and parallel rotation of the bulk ions at the edge of a tokamak plasma due to the ion orbit loss are calculated by computing the minimum loss en…
From Liouville's theorem to quasilinear, nonlinear stochastic, and fractional transport, a multi-scale kinetics of plasma turbulence
Shaojie Wang
From Liouville's equation, a phase-space multi-scale transport equation is systematically derived. The proposed phase-space multi-scale transport equation based on the first princi…
On the kinetic theory of turbulence in plasmas
Shaojie Wang
From the nonlinear (NL) Vlasov equation, a NL turbulence scattering term is found to describe the stochastic dissipation on the time scale longer than the turbulence correlation ti…