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 …

In this paper, we develop a multivariate regression model and a neural network model to
predict the Reynolds number (Re) and Nusselt number in turbulent thermal convection. We …

We derive a formula for the Péclet number (Pe) by estimating the relative strengths of
various terms of the momentum equation. Using direct numerical simulations in three …

In this paper, we extend Grossmann and Lohse's (GL) model [S. Grossmann and D.
Lohse,“Thermal convection for large Prandtl numbers,” Phys. Rev. Lett. 86, 3316 (2001)] for …

We analyze the Prandtl number (Pr) dependence of spectra and fluxes of kinetic energy, as
well as the energy injection rates and dissipation rates, of turbulent thermal convection using …

We investigate the influence of the regular roughness of heated and cooled plates and
adiabatic partition boards on the mean heat transport in a square Rayleigh–Bénard (RB) …

In this paper, we show that, in the presence of large-scale circulation (LSC), Taylor's
hypothesis can be invoked to deduce the energy spectrum in thermal convection using real …

Abstract Direct Numerical Simulations of turbulent convection in a large aspect-ratio box are
carried out in the range of Rayleigh number 7× 10 4≤ Ra≤ 2× 10 6 at Prandtl number P r …

We adopt the stretched spiral vortex sub-grid model for large-eddy simulation (LES) of
turbulent convection at extreme Rayleigh numbers. We simulate Rayleigh–Bénard …