Results 11 to 20 of about 268,500 (212)

New perspectives in turbulent Rayleigh-Bénard convection [PDF]

open access: yesThe European Physical Journal E : Soft matter, 2012
Recent experimental, numerical and theoretical advances in turbulent Rayleigh-Bénard convection are presented. Particular emphasis is given to the physics and structure of the thermal and velocity boundary layers which play a key role for the better ...
F. Chillà, J. Schumacher
semanticscholar   +2 more sources

Rayleigh-Bénard convection of Casson fluids [PDF]

open access: yesInternational Journal of Thermal Sciences, 2018
International audienceThis study aims at investigating numerically the Rayleigh-Bénard Convection (RBC) in viscoplastic fluids. A Casson fluid is considered in a bidimensional square cavity heated from below. The effects of the dimensionless yield stress,
Amine Ammar, Christel Métivier
exaly   +3 more sources

Rayleigh-Bénard convection with magnetic field [PDF]

open access: yesTheoretical and Applied Mechanics, 2003
We discuss the solution of the small perturbation equations for a horizontal fluid layer heated from below with an applied magnetic field either in vertical or in horizontal direction. The magnetic field stabilizes, due to the Lorentz force, more or less
Zierep Jürgen
doaj   +3 more sources

Turbulent Rotating Rayleigh–Bénard Convection

open access: yesAnnual Review of Fluid Mechanics, 2022
Rotation with thermally induced buoyancy governs many astrophysical and geophysical processes in the atmosphere, ocean, sun, and Earth's liquid-metal outer core.
R. Ecke, O. Shishkina
semanticscholar   +1 more source

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

Robust wall states in rapidly rotating Rayleigh–Bénard convection [PDF]

open access: yesJournal of Fluid Mechanics, 2020
We show, using direct numerical simulations with experimentally realizable boundary conditions, that wall modes in Rayleigh–Bénard convection in a rapidly rotating cylinder persist even very far from their linear onset.
B. Favier, E. Knobloch
semanticscholar   +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

Time-Periodic Cooling of Rayleigh–Bénard Convection

open access: yesFluids, 2021
The problem of Rayleigh–Bénard’s natural convection subjected to a temporally periodic cooling condition is solved numerically by the Lattice Boltzmann method with multiple relaxation time (LBM-MRT).
Lyes Nasseri   +4 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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