29 citations · 68 across the 5 of their papers we have counts for
6 papers
Couette flow turbulence reduction by the flow spanwise reflection symmetry breaking: On the universality of the control strategy
George Khujadze, David Gogichaishvili, George Chagelishvili
A novel turbulence control strategy for wall-bounded shear flow is proposed by Chagelishvili et al, 2014. The essence of this strategy involves continuously imposition of specially…
Aerodynamic sound of turbulent time-developing shear layer as the outcome of the flow linear non-modal instability
George Khujadze, David Gogichaishvili, George Chagelishvili +3
The aim of this paper is to substantiate the importance of non-normality of shear flow linear operators and its consequence -- the non-modal dynamics of the perturbations -- in the…
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…
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…
Nature and dynamics of overreflection of Alfven waves in MHD shear flows
D. Gogichaishvili, G. Chagelishvili, R. Chanishvili +1
Our goal is to gain new insights into the physics of wave overreflection phenomenon in MHD nonuniform/shear flows changing the existing trend/approach of the phenomenon study. The…