49 citations · 147 across the 10 of their papers we have counts for
8 papers · 1 filter
New linear stability parameter to describe low- electromagnetic microinstabilities driven by passing electrons in axisymmetric toroidal geometry
M. R. Hardman, F. I. Parra, B. S. Patel +8
In magnetic confinement fusion devices, the ratio of the plasma pressure to the magnetic field energy, , can become sufficiently large that electromagnetic microinstabilities be…
A phase-shift-periodic parallel boundary condition for low-magnetic-shear scenarios
D. A. St-Onge, M. Barnes, F. I. Parra
We formulate a generalized periodic boundary condition as a limit of the standard twist-and-shift parallel boundary condition that is suitable for simulations of plasmas with low m…
Three-Dimensional Inhomogeneity of Electron-Temperature-Gradient Turbulence in the Edge of Tokamak Plasmas
J. F. Parisi, F. I. Parra, C. M. Roach +15
Nonlinear multiscale gyrokinetic simulations of a Joint European Torus edge pedestal are used to show that electron-temperature-gradient (ETG) turbulence has a rich three-dimension…
A novel approach to radially global gyrokinetic simulation using the flux-tube code
D. A. St-Onge, M. Barnes, F. I. Parra
A novel approach to global gyrokinetic simulation is implemented in the flux-tube code . This is done by using a subsidiary expansion of the gyrokinetic equation i…
Turbulent transport of impurities in 3D devices
J. M. García-Regaña, M. Barnes, I. Calvo +5
A large diffusive turbulent contribution to the radial impurity transport in Wendelstein 7-X (W7-X) plasmas has been experimentally inferred during the first campaigns and numerica…
Fluctuation Dynamo in Collisionless and Weakly Collisional Magnetized Plasmas
Denis A. St-Onge
In weakly collisional astrophysical plasmas, such as the intracluster medium of galaxy clusters, the amplification of cosmic magnetic fields by chaotic fluid motions is hampered by…