The transmission dynamics of highly contagious respiratory diseases like COVID-19
(through coughing/sneezing) is an open problem in the epidemiological studies of such …

Direct numerical simulations of two-dimensional (2D) and three-dimensional (3D), single-
mode and multi-mode, incompressible immiscible Rayleigh–Taylor (RT) instabilities are …

Settling‐driven gravitational instabilities (SDGIs) can form at the base of buoyant particle‐
laden suspensions, modulating particle sedimentation in various settings such as …

Due to the complex interplay of various meteorological phenomena, simulating weather is a
challenging and open research problem. In this contribution, we propose a novel physics …

The SARS-CoV-2 is transmitted not only through coughing, but also through breathing,
speaking or singing. We perform direct numerical simulations of the turbulent transport of …

We study entrainment in dry thermals in neutrally and unstably stratified ambients, and moist
thermals in dry-neutrally stratified ambients using direct numerical simulations. We find, in …

We study numerically the melting of a horizontal layer of a pure solid above a convecting
layer of its fluid rotating about the vertical axis. In the rotating regime studied here, with …

Linear modal stability analysis of a mean zonal shear flow is carried out in the framework of
rotating shallow water equations (RSWE), both under the β-plane approximation and in the …

We use well-resolved numerical simulations to study the combined effects of buoyancy,
pressure-driven shear and rotation on the melt rate and morphology of a layer of pure solid …

This article describes the dynamics of small inertial particles centrifuging out of a single
vortex. It shows the importance of caustics formation in the vicinity of a single vortex: both for …