Results 121 to 130 of about 35,832 (271)

Radiatively driven convection: diffusivity-free regimes of geophysical and astrophysical flows in the laboratory

open access: yesComptes Rendus. Physique
We consider the turbulent heat transport induced by thermal convection. The widespread belief is that the transport properties of the turbulent flow should be independent of the tiny molecular diffusivities for asymptotically strong driving, but the ...
Hadjerci, Gabriel   +4 more
doaj   +1 more source

Reduced basis method applied to a convective stability problem

open access: yesJournal of Mathematics in Industry, 2018
Numerical reduced basis methods are instrumental to solve parameter dependent partial differential equations problems in case of many queries. Bifurcation and instability problems have these characteristics as different solutions emerge by varying a ...
Henar Herrero, Yvon Maday, Francisco Pla
doaj   +1 more source

Information Preservation Modeling of Rayleigh-Benard Transition from Thermal Conduction to Convection

open access: yes, 2009
Onset and evolution of the Rayleigh-Benard (R-B) convection are investigated using the Information Preservation (IP) method. The information velocity and temperature are updated using the Octant Flux Splitting (OFS) model developed by Masters & Ye based ...
Zhang J(张俊), Fan J(樊菁), Zhang J
core  

Vortex structure in rotating Rayleigh-Benard convection [PDF]

open access: yes, 1997
The authors investigate the flow patterns in a cylindrical rotating Rayleigh-Benard convection cell with radius-to-height ratio {Gamma} = 0.5. The Rayleigh number R is 2 x 10{sup 8}, the dimensionless rotation rate {Omega} varies from 10{sup 4} to 5 x 10{
Ecke, R.E., Vorobieff, P.
core  

Thermal effects on Rayleigh-Marangoni-Benard instability in a system of superposed fluid and porous layers

open access: yes, 2010
Thermal effects of the heat transfer at free surface (represented by Biot number) on the Rayleigh-Marangoni-Benard instability in a system of liquid-porous layers with top free surface are investigated numerically.
刘荣   +5 more
core   +1 more source

On the oscillatory behavior of transient Rayleigh Benard convection of air for 2D channel flow at moderate Rayleigh numbers

open access: yes, 2012
Unsteady numerical simulation of Rayleigh Benard convection heat transfer from a 2D channel is performed. The oscillatory behavior is attributed to recirculation of ascending and descending flows towards the core of the channel producing organized rolled
Neishabouri, R.   +3 more
core  

Rayleigh-Marangoni-Benard Instability in Two-Layer Fluid System

open access: yes, 2004
Rayleigh-Marangoni-Benard instability in a system of two-layer fluids is studied numerically. The convective instabilities in the system of Silicon Oil (10cSt) and Fluorinert (FC70) liquids have been analyzed.
唐泽眉   +3 more
core  

Convective shutdown in a porous medium at high Rayleigh number

open access: yes
Convection in a closed domain driven by a dense buoyancy source along the upper boundary soon starts to wane owing to the increase of the average interior density.
Neufeld, Jerome A.   +2 more
core   +1 more source

Active control of Rayleigh-Benard convection

open access: yes, 1996
Active feedback control strategies to alter the flow patterns in Rayleigh-Benard convection in a fluid layer heated from below and cooled from above were studied experimentally and theoretically. It was demonstrated that the transition from the no motion
Tang, Jie
core  

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