87 citations · 1.2k across the 60 of their papers we have counts for
4 papers · 1 filter
Electromagnetic zonal flow residual responses
Peter J. Catto, Felix I. Parra, Istvan Pusztai
The collisionless axisymmetric zonal flow residual calculation for a tokamak plasma is generalized to include electromagnetic perturbations. We formulate and solve the complete ini…
Optimized up-down asymmetry to drive fast intrinsic rotation in tokamaks
Justin Ball, Felix I. Parra, Matt Landreman +1
Breaking the up-down symmetry of the tokamak poloidal cross-section can significantly increase the spontaneous rotation due to turbulent momentum transport. In this work, we optimi…
Semianalytical calculation of the zonal-flow oscillation frequency in stellarators
Pedro Monreal, Edilberto Sánchez, Iván Calvo +5
Due to their capability to reduce turbulent transport in magnetized plasmas, understanding the dynamics of zonal flows is an important problem in the fusion programme. Since the pi…
Stellarator bootstrap current and plasma flow velocity at low collisionality
P. Helander, F. I. Parra, S. L. Newton
The bootstrap current and flow velocity of a low-collisionality stellarator plasma are calculated. As far as possible, the analysis is carried out in a uniform way across all low-c…