39 citations · 235 across the 11 of their papers we have counts for
11 papers
Pseudo-Spectrum of the Resistive Magneto-hydrodynamics Operator: Resolving the Resistive Alfven Paradox
D. Borba, K. S. Riedel, W. Kerner +3
The `Alfvén Paradox' is that as resistivity decreases, the discrete eigenmodes do not converge to the generalized eigenmodes of the ideal Alfvén continuum. To resolve the paradox,…
Secondary fast reconnecting instability in the sawtooth crash
Daniele Del Sarto, Maurizio Ottaviani
In this work we consider magnetic reconnection in thin current sheets with both resistive and electron inertia effects. When the current sheet is produced by a primary instability…
The effect of magnetic islands on ITG turbulence driven transport
P. Hill, F. Hariri, M. Ottaviani
In this work, we address the question of the influence of magnetic islands on the perpendicular transport due to steady-state ITG turbulence on the energy transport time scale. We…
Plasma turbulence simulations with X-points using the flux-coordinate independent approach
F. Hariri, P. Hill, M. Ottaviani +1
In this work, the Flux-Coordinate Independent (FCI) approach to plasma turbulence simulations is formulated for the case of generic, static magnetic fields, including those possess…
A Singularity-Free Coordinate System for X-point Geometries
F. Hariri, P. Hill, M. Ottaviani +1
A Flux Coordinate Independent (FCI) approach for anisotropic systems, not based on magnetic flux coordinates has been introduced in [F. Hariri and M. Ottaviani, Comput. Phys. Commu…
Finite system size effects on Drift Wave stability
F. Militello, M. Ottaviani, A. Wynn
Unstable electrostatic resistive modes, driven by density gradients, are identified in a bounded sheared slab. The boundary conditions play a crucial role and are shown to change t…