Results 241 to 250 of about 18,661 (284)
Some of the next articles are maybe not open access.
1992
In this chapter we turn our attention to processes of combined (simultaneous) heat and mass transfer that are driven by buoyancy. The density gradients that provide the driving buoyancy force are induced by the combined effects of temperature and species concentration nonuniformities present in the fluid saturated medium.
Donald A. Nield, Adrian Bejan
openaire +1 more source
In this chapter we turn our attention to processes of combined (simultaneous) heat and mass transfer that are driven by buoyancy. The density gradients that provide the driving buoyancy force are induced by the combined effects of temperature and species concentration nonuniformities present in the fluid saturated medium.
Donald A. Nield, Adrian Bejan
openaire +1 more source
1996
Within a statically stable fluid stratified by gradients of two or more properties with different molecular diffusivities (i.e. heat-salt, salt-sugar, etc.) turbulence and convective transports may take place without energy supply from the outside. In such a system a number of surprising phenomena may be observed depending on the relative gradients of ...
Arne Foldvik, Bert Rudels
openaire +1 more source
Within a statically stable fluid stratified by gradients of two or more properties with different molecular diffusivities (i.e. heat-salt, salt-sugar, etc.) turbulence and convective transports may take place without energy supply from the outside. In such a system a number of surprising phenomena may be observed depending on the relative gradients of ...
Arne Foldvik, Bert Rudels
openaire +1 more source
A Nonlinear Model for Double-Diffusive Convection
SIAM Journal on Applied Mathematics, 1975We consider a simple fluid-loop model describing convection in a two-constituent fluid. The model permits explicit construction of linear stability and global stability boundaries in parameter space. A rigorous proof of global stability within the appropriate region is provided.
Siegmann, William L. +1 more
openaire +2 more sources
Double-diffusive magnetoconvection
Pramana, 1986This review deals principally with the interaction between double-diffusive convection and an externally imposed vertical magnetic field in a Boussinesq fluid. Both linear and nonlinear (two and three-dimensional) theories have been discussed. Double-diffusive magnetoconvection is shown to exhibit a rich variety of dynamical behaviour unimaginable in a
openaire +2 more sources
Rapid Double Diffusion Precipitin Analysis
The Journal of Immunology, 1954Summary A modification of the Ouchterlony three-depot method of double diffusion precipitin analysis is described. The use of depots which form long straight interfaces with the reaction arena leads to the development of rectilinear zones of precipitate.
R K, JENNINGS, F, MALONE
openaire +2 more sources
Double Diffusion in Oceanography
Annual Review of Fluid Mechanics, 1994The modern study of double-diffusive convection began with Melvin Stern's article on "The Salt Fountain and Thermohaline Convection" in 1960. In that paper, he showed how opposing stratifications of two component species could drive convection if their diffusivities differed.
openaire +1 more source
The Butterfly Singularity in Double-Diffusive Convection
Journal of Non-Equilibrium Thermodynamics, 1987The two-dimensional, two-component Bénard problem in a finite box is analyzed. A Lyapunov-Schmidt reduction for the stationary solutions of the Boussinesq equations to an amplitude equation is performed up to fifth order and the existence and non-degeneracy conditions for a butterfly singularity in the sense of imperfect bifurcation theory are ...
Armbruster, D., Neveling, M.
openaire +2 more sources
Journal of Fluid Mechanics, 2008
Fully developed two-dimensional salt-finger convection is characterized by the appearance of coherent dipolar eddies which carry relatively fresh and cold fluid upward and salty and warm fluid downward. Such structures – the double-diffusive modons – are prevalent in the regime in which density stratification is close to neutral and the salt-finger ...
openaire +3 more sources
Fully developed two-dimensional salt-finger convection is characterized by the appearance of coherent dipolar eddies which carry relatively fresh and cold fluid upward and salty and warm fluid downward. Such structures – the double-diffusive modons – are prevalent in the regime in which density stratification is close to neutral and the salt-finger ...
openaire +3 more sources
Direct Resonance in Double‐Diffusive Systems
Studies in Applied Mathematics, 1985In thermohaline convection and a number of other systems, both direct and oscillatory modes of instability are possible. Should these modes coalesce at some point in parameter space, nonlinear instabilities are likely to be more dramatic in the neighborhood of such a point than elsewhere.
openaire +2 more sources