Thermally driven turbulent flows are omnipresent in nature and technology. A good
understanding of the physical principles governing such flows is key for numerous problems …

Tuning transport properties through the manipulation of elementary structures has achieved
great success in many areas, such as condensed matter physics. However, the ability to …

Thermal turbulence is well known as a potent means to convey heat across space by a
moving fluid. The existence of the boundary layers near the plates, however, bottlenecks its …

Rough surfaces have been widely used as an efficient way to enhance the heat-transfer
efficiency in turbulent thermal convection. In this paper, however, we show that roughness …

In this paper, we report that reversals of the large-scale circulation in two-dimensional
Rayleigh–Bénard (RB) convection can be suppressed by imposing sinusoidally distributed …

We studied the flow organization and heat transfer properties in two-dimensional and three-
dimensional Rayleigh–Bénard cells that are imposed with different types of wall shear. The …

Many natural and industrial turbulent flows are subjected to time-dependent boundary
conditions. Despite being ubiquitous, the influence of temporal modulations (with frequency …

Turbulence is known for its ability to vigorously mix fluid and transport heat. Despite over a
century of research for enhancing heat transport, few have exceeded the inherent limits …

We perform a numerical study of the heat transfer and flow structure of Rayleigh–Bénard
(RB) convection in (in most cases regular) porous media, which are comprised of circular …

The Pr-dependence of the critical roughness height in two-dimensional turbulent Rayleigh–Bénard
convection Page 1 J. Fluid Mech. (2021), vol. 911, A52, doi:10.1017/jfm.2020.1091 The Pr-dependence …