116 citations · 401 across the 7 of their papers we have counts for
7 papers
Constraints on ion vs. electron heating by plasma turbulence at low beta
A. A. Schekochihin, Y. Kawazura, M. A. Barnes
It is shown that in low-beta, weakly collisional plasmas, such as the solar corona, some instances of the solar wind, the aurora, inner regions of accretion discs, their coronae, a…
Intrinsic rotation driven by non-Maxwellian equilibria in tokamak plasmas
M. Barnes, F. I. Parra, J. P. Lee +3
The effect of small deviations from a Maxwellian equilibrium on turbulent momentum transport in tokamak plasmas is considered. These non-Maxwellian features, arising from diamagnet…
Turbulent transport and heating of trace heavy ions in hot, magnetized plasmas
M. Barnes, F. I. Parra, W. Dorland
Scaling laws for the transport and heating of trace heavy ions in low-frequency, magnetized plasma turbulence are derived and compared with direct numerical simulations. The predic…
Zero-Turbulence Manifold in a Toroidal Plasma
E. G. Highcock, A. A. Schekochihin, S. C. Cowley +4
Sheared toroidal flows can cause bifurcations to zero-turbulent-transport states in tokamak plasmas. The maximum temperature gradients that can be reached are limited by subcritica…
Transport Bifurcation Induced by Sheared Toroidal Flow in Tokamak Plasmas
E. G. Highcock, M. Barnes, F. I. Parra +3
First-principles numerical simulations are used to describe a transport bifurcation in a differentially rotating tokamak plasma. Such a bifurcation is more probable in a region of…
Critically balanced ion temperature gradient turbulence in fusion plasmas
M. Barnes, F. I. Parra, A. A. Schekochihin
Scaling laws for ion temperature gradient driven turbulence in magnetized toroidal plasmas are derived and compared with direct numerical simulations. Predicted dependences of turb…
Turbulent transport in tokamak plasmas with rotational shear
M. Barnes, F. I. Parra, E. G. Highcock +3
Nonlinear gyrokinetic simulations have been conducted to investigate turbulent transport in tokamak plasmas with rotational shear. At sufficiently large flow shears, linear instabi…