Results 21 to 30 of about 257,809 (217)

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

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   +1 more source

Stability for Rayleigh–Benard Convective Solutions of the Boltzmann Equation [PDF]

open access: yesArchive for Rational Mechanics and Analysis, 2010
We consider the Boltzmann equation for a gas in a horizontal slab, subject to a gravitational force. The boundary conditions are of diffusive type, specifying the wall temperatures, so that the top temperature is lower than the bottom one (Benard setup). We consider a 2-dimensional convective stationary solution, which is close for small Knudsen number
Arkeryd, A   +3 more
openaire   +4 more sources

Marginal Stability of Oscillatory Bénard-Marangoni Convection With Internal Heat Generation

open access: yesJournal of Computing Research and Innovation, 2023
The onset of oscillatory Benard-Marangoni convection in a horizontal fluid layer with internal heat generation and a deformable free surface is studied using an analytical technique employing the classical linear stability theory.
Mohamad Najib Mohamad Fadzil   +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. Only infinitesimal disturbances are considered. Numerical results for the critical Rayleigh number
B. S. Bhadauria, Lokenath Debnath
openaire   +3 more sources

Oscillatory Instabilities of Two-Layer Rayleigh-Marangoni-Benard Convection [PDF]

open access: yes, 2005
The Rayleigh-Marangoni-Benard convective instability (R-M-B instability) in the two-layer systems such as Silicone oil (10cSt)/Fluorinert (FC70) and Silicone oil (2cSt)/water liquids are studied. Both linear instability analysis and nonlinear instability
Liu QS(刘秋生)   +5 more
core   +3 more sources

Analysis of Rayleigh-Bénard convection with thermal volumetric radiation using Lattice Boltzmann Formulation

open access: yesJournal of Thermal Science and Technology, 2017
The interactions between Transient Rayleigh-Bénard convection and volumetric radiation are investigated by means of the lattice Boltzmann method (LBM) performed for a two dimensional participating Rayleigh-Bénard cell.
Raoudha CHAABANE   +3 more
doaj   +1 more source

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

Semi-theoretical correlations of melting process driven by Rayleigh–Bénard convection suitable for low melting point metal

open access: yesCase Studies in Thermal Engineering, 2021
This paper studies the melting process of low melting point metal (LMPM) in a square cavity heated from bottom in the presence of Rayleigh–Bénard convection.
Wenhua Guo   +3 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

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