258 citations · 1.6k across the 62 of their papers we have counts for
7 papers · 2 filters
Predicting the Dimits shift through reduced mode tertiary instability analysis in a strongly driven gyrokinetic fluid limit
A. Hallenbert, G. G. Plunk
The tertiary instability is believed to be important for governing magnetised plasma turbulence under conditions of strong zonal flow generation, near marginal stability. In this w…
Calculating the linear critical gradient for the ion-temperature-gradient mode in magnetically confined plasmas
G. T. Roberg-Clark, G. G. Plunk, P. Xanthopoulos
A first-principles method to calculate the critical temperature gradient for the onset of the ion-temperature-gradient mode (ITG) in linear gyrokinetics is presented. We find that…
Exploring zonal flow mediated saturation on stellarators
C. D. Mora Moreno, J. H. E. Proll, G. G. Plunk +1
In stellarators, zonal flow activity depends sensitively on geometry of the three dimensional magnetic field, via an interplay of mechanisms that is not fully understood. In this w…
Enstrophy non-conservation and the forward cascade of energy in two-dimensional electrostatic magnetized plasma turbulence
G. G. Plunk
A fluid system is derived to describe electrostatic magnetized plasma turbulence at scales somewhat larger than the Larmor radius of a given species. It is related to the Hasegawa-…
Global gyrokinetic simulations of ITG turbulence in the configuration space of the Wendelstein 7-X stellarator
A. Bañón Navarro, G. Merlo, G. G. Plunk +7
We study the effect of turbulent transport in different magnetic configurations of the Weldenstein 7-X stellarator. In particular, we performed direct numerical simulations with th…
Perturbing an axisymmetric magnetic equilibrium to obtain a quasi-axisymmetric stellarator
G. G. Plunk
It is demonstrated that finite-pressure, approximately quasi-axisymmetric stellarator equilibria can be directly constructed (without numerical optimization) via perturbations of g…