Experimental Study of Buoyancy-Driven Instabilities Around Acid-Base Reaction Fronts
The interplay between hydrodynamics and chemistry can give rise to complex non linear dynamics. To study how a simple A+B→C reaction can affect buoyancy-driven instabilities, we experimentally investigate convective flows appearing at the miscible interface between a solution of a reactant A put on top of a solution of another reactant B in the gravity field when a reaction takes place. The main observation is that the symmetry of the hydrodynamic patterns is drastically modified by the chemistry.
KeywordsGravity Field Contact Line Induction Time Hydrodynamic Instability Molecular Diffusion Coefficient
We acknowledge Prodex, the ITN—Marie Curie—Multiflow network and FRS-FNRS for financial support.
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