16 citations · 16 across the 1 of their papers we have counts for
6 papers
The onset of zonal modes in two-dimensional Rayleigh-Bénard convection
Philip Winchester, Peter D. Howell, Vassilios Dallas
We study the stability of steady convection rolls in 2D Rayleigh--Bénard convection with free-slip boundaries and horizontal periodicity over twelve orders of magnitude in the Pran…
Zonal flow reversals in two-dimensional Rayleigh-Bénard convection
Philip Winchester, Vassilios Dallas, Peter D. Howell
We analyse the nonlinear dynamics of the large scale flow in Rayleigh-Bénard convection in a two-dimensional, rectangular geometry of aspect ratio . We impose periodic and free-…
Bifurcations of a plane parallel flow with Kolmogorov forcing
Kannabiran Seshasayanan, Vassilios Dallas, Stephan Fauve
We study the primary bifurcations of a two-dimensional Kolmogorov flow in a channel subject to boundary conditions chosen to mimic a parallel flow, i.e. periodic and free-slip boun…
Transitions between turbulent states in a two-dimensional shear flow
Vassilios Dallas, Kannabiran Seshasayanan, Stephan Fauve
We study the bifurcations of the large scale jets in the turbulent regime of a forced shear flow using direct numerical simulations of the Navier-Stokes equations. The bifurcations…
Classification of chaotic time series with deep learning
Nicolas Boullé, Vassilios Dallas, Yuji Nakatsukasa +1
We use standard deep neural networks to classify univariate time series generated by discrete and continuous dynamical systems based on their chaotic or non-chaotic behaviour. Our…
Rotationally induced coherence in turbulent kinematic dynamos
Vassilios Dallas, Steve Tobias
We consider rotating, kinematic dynamos at low magnetic Prandtl number . We show that the inclusion of rotation leads to an increase in spatio-temporal coherence and a modifica…