Cross-diffusion phenomena are experimentally shown to be able to induce convective fingering around an initially stable stratification of two microemulsions with different compositions. Upon diffusion of a salt that entrains water and AOT micelles by cross-diffusion, the miscible interface deforms into fingers following the build-up of a non-monotonic density profile in the gravitational field. A diffusion model incorporating cross-diffusion effects provides an explanation for the mechanism of the buoyancy-driven hydrodynamic instability and for the properties of the convective fingers.
|Titolo:||Cross-diffusion-induced convective patterns in microemulsion systems|
|Citazione:||Budroni, M.A., Lemaigre, L., De Wit, A., & Rossi, F. (2015). Cross-diffusion-induced convective patterns in microemulsion systems. PHYSICAL CHEMISTRY CHEMICAL PHYSICS, 17(3), 1593-1600.|
|Appare nelle tipologie:||1.1 Articolo in rivista|
File in questo prodotto: