Results 291 to 300 of about 3,923,864 (337)

Salt fingers and convecting layers

Deep Sea Research and Oceanographic Abstracts, 1969
Abstract It is shown that convective ‘fingers’ can form not only in the salt-heat system, but also in a fluid containing two solutes with much closer diffusivities (for example sugar above a salt solution). This experimental device is used to explore various phenomena which cannot easily be produced in the laboratory with salt and heat.
Melvin E. Stern, J. Stewart Turner
openaire   +1 more source

Convection in a porous layer

International Journal of Heat and Mass Transfer, 1980
Abstract Steady convective motions inside a rectangular cavity filled with a porous material are examined in the large Rayleigh number limit for flows driven by a horizontal temperature gradient. The boundary-layer structure on the side walls is determined using an integral relations approach.
Simpkins, P. G., Blythe, P. A.
openaire   +1 more source

Fluctuating free convection boundary layers

Acta Physica Academiae Scientiarum Hungaricae, 1976
The free convection flow along a horizontal plate whose temperature oscillates about a non-zero mean is analysed. The basic flow is purely buoyancy induced while the oscillation in the plate temperature causes a time dependent boundary layer flow and heat transfer. Two separate solutions valid for high and low frequency ranges are developed.
openaire   +1 more source

Convective Instabilities in Layered Systems

2003
We discuss intrinsic multi-layer convection phenomena which cannot be explained in the framework of the one-layer approach. The physical mechanisms of instabilities are described, and appropriate mathematical models are presented. A special attention is payed to the problem of self-consistency of the mathematical model based on the Boussinesq ...
A. A. Nepomnyashchy, I. B. Simanovskii, T. Boeck, A. A. Golovin, L. M. Braverman, A. Thess   +5 more
openaire   +1 more source

Convection in Superposed Fluid Layers

2012
Buoyancy-driven convection in differentially heated fluid layers overlaid on each other is the subject of interest in this chapter. The problem is characterized by the formation of a fluid–fluid interface. The nature of coupling between the two fluid layers is determined by the interface. Experiments conducted over a limited range of parameters with an
Pradipta Kumar Panigrahi, Krishnamurthy Muralidhar   +1 more
openaire   +1 more source

Intermittent layered convection in a model mantle with an endothermic phase change at 670 km

Nature, 1991
P. Machetel, Patrice Weber
semanticscholar   +1 more source

Layered convection induced by phase transitions

, 1985
U. Christensen, D. Yuen
semanticscholar   +1 more source

Seismic‐Geodynamic Constraints on Mantle Flow: Implications for Layered Convection, Mantle Viscosity, and Seismic Anisotropy in the Deep Mantle.

, 2013
A. Forte
semanticscholar   +1 more source

Physical and numerical experiments on layered convection in a density-Stratified fluid

, 1972
R. Wirtz, D. G. Briggs, Chunming Chen
semanticscholar   +1 more source

Locally layered convection inferred from dynamic models of the Earth's mantle

Nature, 1995
C. Thoraval, P. Machetel, A. Cazenave
semanticscholar   +1 more source