Results 11 to 20 of about 24,757 (267)

Numerical Analysis of Linear Traveling Wave in Rotating Rayleigh–Bénard Convection with an Adiabatic Sidewall

open access: yesFluids, 2023
In rotating Rayleigh–Bénard problems, convection with traveling waves may occur near the sidewalls. The Rayleigh number, Taylor number and Prandtl number are involved in this phenomenon, and the convection mode is determined depending on their values. We
Toshio Tagawa
doaj   +1 more source

Stability of Magneto Double Diffusive Convection in Couple Stress Liquid with Chemical Reaction [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2023
The effect of chemical reaction and external vertical magnetic field on the onset of the double diffusive convection in couple stress fluid between infinite horizontal parallel plates  has been studied.
Monal Bharty   +2 more
doaj   +1 more source

Optimal heat transport in rotating Rayleigh-Bénard convection at large Rayleigh numbers

open access: yesPhysical Review Fluids, 2023
Main article: 21 pages, 10 figures; Supplementary material: 6 pages, 4 figures; Published in Phys.
Hartmann, Robert   +4 more
openaire   +6 more sources

Rayleigh-Bénard convection at high Rayleigh number and infinite Prandtl number: Asymptotics and numerics [PDF]

open access: yesPhysics of Fluids, 2013
The problem of fast viscous steady Rayleigh-Bénard convection in a rectangular enclosure is revisited using asymptotic and numerical methods. There are two generic cases: in the first, there is zero shear stress at all boundaries; in the second, there is zero shear stress at the vertical boundaries, but no slip at the horizontal ones.
Vynnycky, Michael, Masuda, Y
openaire   +2 more sources

Vertical heat transport at infinite Prandtl number for micropolar fluid

open access: yesArchives of Mechanics, 2020
We investigate the upper bound on the vertical heat transport in the fully 3D Rayleigh–Bénard convection problem at the infinite Prandtl number for a micropolar fluid.
M. Caggio   +3 more
doaj   +1 more source

Prandtl and Rayleigh number dependence of heat transport in high Rayleigh number thermal convection [PDF]

open access: yesJournal of Fluid Mechanics, 2011
AbstractResults from direct numerical simulation for three-dimensional Rayleigh–Bénard convection in samples of aspect ratio $\Gamma = 0. 23$ and $\Gamma = 1/ 2$ up to Rayleigh number $\mathit{Ra}= 2\ensuremath{\times} 1{0}^{12} $ are presented. The broad range of Prandtl numbers $0. 5\lt \mathit{Pr}\lt 10$ is considered.
Stevens, RJAM   +2 more
openaire   +6 more sources

Rayleigh and Prandtl number scaling in the bulk of Rayleigh–Bénard turbulence [PDF]

open access: yesPhysics of Fluids, 2005
The Ra and Pr number scaling of the Nusselt number Nu, the Reynolds number Re, the temperature fluctuations, and the kinetic and thermal dissipation rates is studied for (numerical) homogeneous Rayleigh–Bénard turbulence, i.e., Rayleigh–Bénard turbulence with periodic boundary conditions in all directions and a volume forcing of the temperature field ...
Calzavarini E.   +3 more
openaire   +5 more sources

Heat Transfer of Fluid Flow by Conduction and Convection in Inclined Cavities [PDF]

open access: yesAl-Rafidain Journal of Computer Sciences and Mathematics
This research dealt with a numerical simulation of the issue of heat transfer by conduction and convection in two dimensions resulting from the flow of a fluid in horizontal and inclined channels.
Hamsa Saleem
doaj   +1 more source

Natural convection in a porous trapezoidal enclosure with magneto-hydrodynamic effect

open access: yesNonlinear Analysis, 2010
The effects of magnetic force, acting vertically downward on natural convection within a porous trapezoidal enclosure saturated with an electrically conducting fluid have been investigated numerically.
M. A. H. Mamun   +2 more
doaj   +1 more source

The Effect of Vibrating Inner Cylinder on Natural Convective Heat Transfer in Concentric and Eccentric Horizontal Cylindrical Annuli [PDF]

open access: yesEngineering and Technology Journal, 2023
In this study, natural heat convection caused by centric and vertically eccentric long horizontal cylinders under the influence of vibration is experimentally investigated.
Baydaa Khudhair, Adel Saleh, Ali Ekaid
doaj   +1 more source

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