40 citations · 79 across the 6 of their papers we have counts for
15 papers · 1 filter
Approach to nonlinear magnetohydrodynamic simulations in stellarator geometry
Yao Zhou, N. M. Ferraro, S. C. Jardin +1
The capability to model the nonlinear magnetohydrodynamic (MHD) evolution of stellarator plasmas is developed by extending the M3D- code to allow non-axisymmetric domain geome…
Theory of the tertiary instability and the Dimits shift within a scalar model
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
The Dimits shift is the shift between the threshold of the drift-wave primary instability and the actual onset of turbulent transport in magnetized plasma. It is generally attribut…
Rigidity of MHD equilibria to smooth incompressible ideal motion near resonant surfaces
David Pfefferlé, Lyle Noakes, Yao Zhou
In ideal MHD, the magnetic flux is advected by the plasma motion, freezing flux-surfaces into the flow. An MHD equilibrium is reached when the flow relaxes and force balance is ach…
Theory of the tertiary instability and the Dimits shift from reduced drift-wave models
Hongxuan Zhu, Yao Zhou, I. Y. Dodin
Tertiary modes in electrostatic drift-wave turbulence are localized near extrema of the zonal velocity with respect to the radial coordinate . We argue that these modes c…
Structure formation in turbulence as instability of effective quantum plasma
Vasileios Tsiolis, Yao Zhou, Ilya Y. Dodin
Structure formation in turbulence is effectively an instability of "plasma" formed by fluctuations serving as particles. These "particles" are quantumlike; namely, their wavelength…
Solitary zonal structures in subcritical drift waves: a minimum model
Yao Zhou, Hongxuan Zhu, I. Y. Dodin
Solitary zonal structures have recently been identified in gyrokinetic simulations of subcritical drift-wave (DW) turbulence with background shear flows. However, the nature of the…