Results 1 to 10 of about 618 (161)

Diffusion‐Free Scaling in Rotating Spherical Rayleigh‐Bénard Convection [PDF]

open access: yesGeophysical Research Letters, 2021
Direct numerical simulations are employed to reveal three distinctly different flow regions in rotating spherical Rayleigh‐Bénard convection. In the high‐latitude region I vertical (parallel to the axis of rotation) convective columns are generated ...
Guiquan Wang   +4 more
doaj   +2 more sources

Turbulent superstructures in Rayleigh-Bénard convection [PDF]

open access: yesNature Communications, 2018
Turbulent fluids in nature, counter-intuitively, can exhibit large-scale order that persists for long times. Pandey et al. numerically characterize the formation of these superstructures in turbulent convection by separating the fast motions at small ...
Ambrish Pandey   +2 more
doaj   +2 more sources

Thermodynamic Analysis of Bistability in Rayleigh–Bénard Convection [PDF]

open access: yesEntropy, 2020
Bistability is often encountered in association with dissipative systems far from equilibrium, such as biological, physical, and chemical phenomena.
Takahiko Ban
doaj   +2 more sources

ROTATING RAYLEIGH-BENARD CONVECTION

open access: yesTASK Quarterly, 2008
In the this paper our results on the natural convection in an enclosed rotating cavity are presented. We have focused our attention on the influence of the Rayleigh and Taylor numbers on the flow structure.
WOJCIECH MAJCHROWSKI   +1 more
doaj   +1 more source

Effects of modulation on Rayleigh-Benard convection. Part I [PDF]

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2004
The linear stability of a horizontal layer of fluid heated from below and above is considered. In addition to a steady temperature difference between the walls of the fluid layer, a time-dependent periodic perturbation is applied to the wall temperatures.
B. S. Bhadauria, Lokenath Debnath
doaj   +2 more sources

Double-Diffusive Effects on the Onset of Rayleigh-Benard Convection of Water-Based Nanofluids

open access: yesApplied Sciences (Switzerland), 2022
A numerical study on the Rayleigh–Benard convection in a shallow cavity filled with different metal-oxide water-based nanofluids is presented through a two-phase model, which accounts for the effects of the Brownian diffusion and thermophoresis, at ...
Massimo Corcione   +2 more
exaly   +3 more sources

Transient Localized Rotating Structures in a Suspension of Highly Thermophilic Nanoparticles

open access: yesFrontiers in Physics, 2022
A thermophilic suspension of nanoparticles heated from below exhibits a complex stability diagram determined by the competition between the stabilizing flux of nanoparticles induced by thermophoresis and the destabilizing flux determined by thermal ...
Marina Carpineti   +3 more
doaj   +1 more source

Natural convection in a model chamber with the Boussinesq approximation utilization [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2017
The paper presents numerical analysis of heat transfer inside a model chamber in time after entering an object of elevated temperature therein. As a result of the temperature difference between the object and the environment in the room, natural ...
Weronika Radzikowska-Juś   +1 more
doaj   +1 more source

Note on the Early Thermoelastic Stage Preceding Rayleigh–Bénard Convection in Soft Materials

open access: yesFluids, 2022
In this paper, we focus on the first stage of transition to Rayleigh–Bénard convection in soft-jammed systems (yield stress fluids) confined in a parallelepiped box heated from the bottom.
Rachid Rahouadj   +2 more
doaj   +1 more source

Numerical simulation of Rayleigh–Bénard convection with supercritical carbon dioxide in a shallow cavity

open access: yesFrontiers in Energy Research, 2023
A numerical simulation of Rayleigh–Bénard convection with supercritical carbon dioxide is presented in this paper. A shallow cavity with an aspect ratio of 4 is selected as a container that is fully filled with supercritical carbon dioxide.
Litao Zhou   +6 more
doaj   +1 more source

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