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.

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 [10.1039/c4cp02196g].

Cross-diffusion-induced convective patterns in microemulsion systems

Rossi, F.
2015-01-01

Abstract

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.
2015
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 [10.1039/c4cp02196g].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11365/1068607