8 citations
5 papers
Noise and error analysis and optimization in particle-based kinetic plasma simulations
E. G. Evstatiev, J. M. Finn, B. A. Shadwick +1
We analyze the noise in macro-particle methods used in plasma physics and fluid dynamics, leading to approaches for minimizing the total error, focusing on electrostatic models in…
Nonlinear error field response in the presence of plasma rotation and real frequencies due to favorable curvature
Cihan Akcay, John M. Finn, Andrew C. Cole +1
We present nonlinear resistive MHD simulations of the response of a rotating plasma to an error field when the plasma has weakly damped linear tearing modes (TM's), stabilized by p…
Geometric scalings for the electrostatically driven helical plasma state
Cihan Akçay, John M. Finn, Richard A. Nebel +1
A new plasma state has been investigated [C.~Akcay, J.~Finn, R.~Nebel and D.~Barnes, Phys.~Plasmas , 052503 (2017)], with a uniform applied axial magnetic field in a p…
Properties of the electrostatically driven helical plasma state
Cihan Akçay, John M. Finn, Richard A. Nebel +2
A novel plasma state has been found [C.~Akçay, J.~Finn, R.~Nebel and D.~Barnes, Phys.~Plasmas \textbf{24}, 052503 (2017)] in the presence of a uniform applied axial magnetic field…
Electrostatically driven helical plasma state
Cihan Akçay, John M. Finn, Richard A. Nebel +1
A novel plasma state has been found in the presence of a uniform applied axial magnetic field in periodic cylindrical geometry. This state is driven electrostatically by helical el…