Results 81 to 90 of about 243,794 (169)

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

Rayleigh-Benard convection in a viscoelastic fluid-filled high-porosity medium with nonuniform basic temperature gradient

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 2001
The qualitative effect of nonuniform temperature gradient on the linear stability analysis of the Rayleigh-Benard convection problem in a Boussinesquian, viscoelastic fluid-filled, high-porosity medium is studied numerically using the single-term ...
Pradeep G. Siddheshwar   +1 more
doaj   +1 more source

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

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   +1 more source

Coherent structures in boundary layers of Rayleigh-Benard convection

open access: yes, 2004
A coherent structure is revealed experimentally by a dyeing technique in the boundary layer of Rayleigh-Benard convection in water. Dye accumulates in streaks aligned with the mean flow.
Tilgner, Andreas, Haramina, Tatjana
core   +1 more source

Lattice Boltzmann simulation of Rayleigh-Benard convection in enclosures filled with Al2O3-water nanofluid

open access: yes, 2018
In order to clarify the controversies for the role of nanoparticles on heat transfer in natural convection, lattice Boltzmann method is used to investigate Rayleigh-Benard convection heat transfer in differentially-heated ...
Weihua Cai   +5 more
core   +1 more source

Interaction of Rayleigh-Benard Convection and Oscillatory Flows [code 119334]

open access: yes, 2014
The effects of oscillatory flow structures on transient convective heat transfer in an air-filled shallow enclosure with a vibrating side wall are investigated.
Aktas, Murat Kadri, Çetindag S.
core   +1 more source

Effects of modulation on Rayleigh-Benard convection. Part I

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   +1 more source

Micro-Rayleigh-Benard convection polymerase chain reaction system

open access: yes, 2010
[[abstract]]Polymerase chain reaction (PCR) is a molecular biological method for in vitro amplification of nucleic acids. Our objective was to design a micro-PCR system that included a Rayleigh-Benard convection PCR chip, measurement circuits, and ...
Yao, Da-Jeng;Chen, Jhao-Ronga;Ju, Woan-Tying
core   +1 more source

Initial-boundary layer associated with the 3-D Boussinesq system for Rayleigh-Benard convection

open access: yesElectronic Journal of Differential Equations, 2020
This article concerns the initial-boundary layer effects of the 3-D incompressible Boussinesq system for Rayleigh-Benard convection with ill-prepared initial data.
Xiaoting Fan, Shu Wang, Wen-Qing Xu
doaj  

Self-regulating photochemical Rayleigh-Bénard convection using a highly-absorbing organic photoswitch. [PDF]

open access: yesNat Commun, 2020
Seshadri S   +6 more
europepmc   +1 more source

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