73 citations · 222 across the 7 of their papers we have counts for
8 papers
Study of low-frequency core-edge coupling in a tokamak: III. Core-localized MHD continuum pulsations \& distant forced reconnection
Andreas Bierwage, Panith Adulsiriswad, Gyungjin Choi +2
Slow magnetoacoustic pulsations (SMAPs) are found in MHD simulations of a tokamak plasma whose safety factor near the center is flat and slightly above unity (). S…
Behavior of kinetic instabilities in a dynamically forming resonant distribution
E. J. Hartigan-O'Connor, T. Barberis, E. G. Devin +2
Instabilities driven by energetic particles are central to the physics of a burning plasma. The majority of kinetic simulations and reduced models assume that the unstable distribu…
Comparison between resistive and collisionless double tearing modes for nearby resonant surfaces
Andreas Bierwage, Qingquan Yu
The linear instability and nonlinear dynamics of collisional (resistive) and collisionless (due to electron inertia) double tearing modes (DTMs) are compared with the use of a redu…
Dynamics of resistive double tearing modes with broad linear spectra
Andreas Bierwage, Sadruddin Benkadda, Satoshi Hamaguchi +1
The nonlinear evolution of resistive double tearing modes (DTMs) with safety factor values q=1 and q=3 is studied in a reduced cylindrical model of a tokamak plasma. We focus on ca…
Large-mode-number magnetohydrodynamic instability driven by sheared flows in a tokamak plasma with reversed central shear
Andreas Bierwage, Qingquan Yu, Sibylle Günter
The effect of a narrow sub-Alfvenic shear flow layer near the minimum q_min of the tokamak safety factor profile in a configuration with reversed central shear is analyzed. Suffici…
Nonlinear evolution of the m=1 internal kink mode in the presence of magnetohydrodynamic turbulence
Andreas Bierwage, Sadruddin Benkadda, Satoshi Hamaguchi +1
The nonlinear evolution of the m=1 internal kink mode is studied numerically in a setting where the tokamak core plasma is surrounded by a turbulent region with low magnetic shear.…