107 citations · 167 across the 5 of their papers we have counts for
5 papers
Gyrokinetic studies of the effect of beta on drift-wave stability in NCSX
J. A. Baumgaertel, G. W. Hammett, D. R. Mikkelsen +2
The gyrokinetic turbulence code GS2 was used to investigate the effects of plasma beta on linear, collisionless ion temperature gradient (ITG) modes and trapped electron modes (TEM…
Comparing linear ion-temperature-gradient-driven mode stability of the National Compact Stellarator Experiment and a shaped tokamak
J. A. Baumgaertel, G. W. Hammett, D. R. Mikkelsen
One metric for comparing confinement properties of different magnetic fusion energy configurations is the linear critical gradient of drift wave modes. The critical gradient scale…
Simulating Gyrokinetic Microinstabilities in Stellarator Geometry with GS2
J. A. Baumgaertel, E. A. Belli, W. Dorland +6
The nonlinear gyrokinetic code GS2 has been extended to treat non-axisymmetric stellarator geometry. Electromagnetic perturbations and multiple trapped particle regions are allowed…
An Enhanced Nonlinear Critical Gradient for Electron Turbulent Transport due to Reversed Magnetic Shear
J. L. Peterson, G. W. Hammett, D. R. Mikkelsen +5
The first nonlinear gyrokinetic simulations of electron internal transport barriers (e-ITBs) in the National Spherical Torus Experiment show that reversed magnetic shear can suppre…
Validation in Fusion Research: Towards Guidelines and Best Practices
P. W. Terry, M. Greenwald, J. -N. Leboeuf +5
Because experiment/model comparisons in magnetic confinement fusion have not yet satisfied the requirements for validation as understood broadly, a set of approaches to validating…