Many fluid-dynamical systems met in nature are quasi-two-dimensional: they are
constrained to evolve in approximately two dimensions with little or no variation along the …

We study rapidly rotating turbulent flows in a highly elongated domain using an asymptotic
expansion at simultaneously low Rossby number, a transition is observed from a state …

Two-dimensional (2D) turbulence features an inverse energy cascade that produces large-
scale flow structures such as large-scale vortices (LSVs) and unidirectional jets. We …

We report a numerical investigation of a previously noticed but less explored flow state
transition in two-dimensional turbulent Rayleigh–Bénard convection. The simulations are …

Instabilities of fluid flows often generate turbulence. Using extensive direct numerical
simulations, we study two-dimensional turbulence driven by a wavenumber-localised …

In many geophysical and astrophysical flows, suppression of fluctuations along one
direction of the flow drives a quasi-two-dimensional upscale flux of kinetic energy, leading to …

We study forced, rapidly rotating and stably stratified turbulence in an elongated domain
using an asymptotic expansion at simultaneously low Rossby number) the flow becomes …

Turbulence is a widely observed state of fluid flows, characterized by complex, nonlinear
interactions between motions across a broad spectrum of length and time scales. While …

We consider rare transitions induced by colored noise excitation in multistable systems. We
show that undesirable transitions can be mitigated by a simple time-delay feedback control if …

Using direct numerical simulations of rotating Rayleigh–Bénard convection, we explore the
transitions between turbulent states from a three-dimensional (3-D) flow state towards a …