Chemo-Hydrodynamic Patterns and Instabilities
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A. De Wit [1]
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[1] Université Libre de Bruxelles
Université Libre de Bruxelles
Arrondissement Brussel-Hoofdstad, Bélgica
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- Localización: Annual review of fluid mechanics, ISSN 0066-4189, Nº.52 52, 2020, págs. 531-555
- Idioma: inglés
- Texto completo no disponible (Saber más ...)
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Resumen
By modifying a physical property of a solution like its density or viscosity, chemical reactions can modify and even trigger convective flows. These flows in turn affect the spatiotemporal distribution of the chemical species. A nontrivial coupling between reactions and flows then occurs. We present simple model systems of this chemo-hydrodynamic coupling. In particular, we illustrate the possibility of chemical reactions controlling or triggering viscous fingering, Rayleigh–Taylor, double-diffusive, and convective dissolution instabilities. We discuss laboratory experiments performed to study these phenomena and compare the experimental results to theoretical predictions. In each case we contrast the chemo-hydrodynamic patterns and instabilities with those that develop in nonreactive systems and unify the different dynamics in terms of the common features of the related spatial mobility profiles.
