50 citations · 122 across the 9 of their papers we have counts for
9 papers
Turbulence and order in magnetized flowing plasmas
Fatima Ebrahimi, Eric Blackman, Wendell Horton
This whitepaper was submitted to the 2019-2020 APS-DPP-CPP (American Physical Society Division of Plasma Physics Community Planning Process) on plasma discovery science. It highlig…
Shear flow-interchange instability in nightside magnetotail causes auroral beads as a signature of substorm onset
Jason Derr, Wendell Horton, Richard Wolf
A geometric wedge model of the near-earth nightside plasma sheet is used to derive a wave equation for low frequency shear flow-interchange waves which transmit $\vec{E} \times \ve…
Active modes and dynamical balances in MRI-turbulence of Keplerian disks with a net vertical magnetic field
D. Gogichaishvili, G. Mamatsashvili, W. Horton +1
We studied dynamical balances in magnetorotational instability (MRI) turbulence with a net vertical field in the shearing box model of disks. Analyzing the turbulence dynamics in F…
Nonlinear transverse cascade and sustenance of MRI-turbulence in Keplerian disks with an azimuthal magnetic field
D. Gogichaishvili, G. Mamatsashvili, W. Horton +2
We investigate magnetohydrodynamic turbulence driven by the magnetorotational instability (MRI) in Keplerian disks with a nonzero net azimuthal magnetic field using shearing box si…
Plasma turbulence in the equatorial electrojet: A two-dimensional Hamiltonian fluid model
Ehab Hassan, I. Keramidas Charidakos, P. J. Morrison +2
A nonlinear unified fluid model that describes the Equatorial Electrojet, including the Farley-Buneman and gradient-drift plasma instabilities, is defined and shown to be a noncano…
Multiscale Equatorial Electrojet Turbulence: Energy Conservation, Coupling, and Cascades in a Baseline 2-D Fluid Model
Ehab Hassan, D. R. Hatch, P. J. Morrison +1
Progress in understanding the coupling between plasma instabilities in the equatorial electrojet based on a unified fluid model is reported. A deeper understanding of the linear an…
Nonlinear transverse cascade and two-dimensional magnetohydrodynamic subcritical turbulence in plane shear flows
G. R. Mamatsashvili, D. Z. Gogichaishvili, G. D. Chagelishvili +1
We find and investigate via numerical simulations self-sustained two-dimensional turbulence in a magnetohydrodynamic flow with a maximally simple configuration: plane, noninflectio…
Surface gravity waves in deep fluid at vertical shear flows
G. Gogoberidze, L. Samushia, G. D. Chagelishvili +2
Special features of surface gravity waves in deep fluid flow with constant vertical shear of velocity is studied. It is found that the mean flow velocity shear leads to non-trivial…
Energy-Conserving Truncations for Convection with Shear Flow
Jean-Luc Thiffeault, Wendell Horton
A method is presented for making finite Fourier mode truncations of the Rayleigh--Benard convection system that preserve invariants of the full partial differential equations in th…