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 …

We report an experimental study of the Prandtl-number effects in quasi-two-dimensional
(quasi-2-D) Rayleigh–Bénard convection. The experiments were conducted in four …

Steady Rayleigh–Bénard convection between stress-free boundaries Page 1 J. Fluid Mech.
(2020), vol. 905, R4, doi:10.1017/jfm.2020.812 Steady Rayleigh–Bénard convection between …

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 …

Thermal boundary layer structure in low-Prandtl-number turbulent convection Page 1 J. Fluid
Mech. (2021), vol. 910, A13. © The Author(s), 2021. Published by Cambridge University Press …

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 …

Convection in the Sun occurs at Rayleigh numbers, Ra, as high as 10 22 and molecular
Prandtl numbers, Pr, as low as 10− 6, under conditions that are far from satisfying the …

The present study numerically investigates the effect of the Prandtl number (0.1≤ Pr≤ 100)
on the flow structures and heat transport mechanism in a two-dimensional rectangular rough …

The fundamental physics and dynamics relating to two-layer convection with an infinite
Prandtl number and large viscosity contrasts have not yet been quantitatively resolved by …

Constructing simpler models, either stochastic or deterministic, for exploring the
phenomenon of flow reversals in fluid systems is in vogue across disciplines. Using direct …