Turbulent flows are characterized by the non-linear cascades of energy and other inviscid
invariants across a huge range of scales, from where they are injected to where they are …

Topology sheds new light on the emergence of unidirectional edge waves in a variety of
physical systems, from condensed matter to artificial lattices. Waves observed in …

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 …

Hydrodynamic flows exhibit turbulent behaviour which is not well understood till date. When
a fluid is in a gravitational field, the flow becomes even more complex due to the gravity …

In this paper, we describe the recent developments in thefield of buoyancy-driven turbulence
with a focus on energy spectrum andflux. Scaling and numerical arguments show that the …

We employ detailed numerical simulations to probe the mechanism of flow reversals in two-
dimensional turbulent convection. We show that the reversals occur via a vortex …

We present an experimental study of the reversal of the large-scale circulation (LSC) in
quasi-two-dimensional turbulent Rayleigh–Bénard convection. It is found that there exists a …

To understand how internal flow structures manifest themselves in the global heat transfer,
we study the correlation between different flow modes and the instantaneous Nusselt …

We present a numerical study of the flow states and reversals of the large-scale circulation
(LSC) in a two-dimensional circular Rayleigh–Bénard cell. Long-time direct numerical …

We consider the numerical simulation of Rayleigh–Bénard convection in a 2D square cell
filled with water () at a turbulent Rayleigh number of. We focus on the structures and …