A
A. D'Onofrio
Researcher at University of Buenos Aires
Publications - 17
Citations - 354
A. D'Onofrio is an academic researcher from University of Buenos Aires. The author has contributed to research in topics: Porous medium & Rayleigh–Taylor instability. The author has an hindex of 9, co-authored 17 publications receiving 315 citations. Previous affiliations of A. D'Onofrio include National Scientific and Technical Research Council.
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Journal ArticleDOI
Rayleigh-Taylor instability of reaction-diffusion acidity fronts
TL;DR: In this article, the authors considered the buoyancy driven Rayleigh-Taylor instability of reaction-diffusion acidity fronts in a vertical Hele-Shaw cell using the chlorite-tetrathionate (CT) reaction as a model system.
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Active role of a color indicator in buoyancy-driven instabilities of chemical fronts
Christophe Almarcha,Philip M. J. Trevelyan,L. A. Riolfo,A. Zalts,C. El Hasi,A. D'Onofrio,A. De Wit +6 more
TL;DR: In this article, an experimental study of the buoyancy-driven hydrodynamic instabilities that can occur when two miscible reactive solutions of an acid-base system are put in contact in the gravity field shows that the patterns observed and the instabilities taking place strongly depend on the presence of a color indicator.
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Experimental study of CO2 convective dissolution: The effect of color indicators
TL;DR: In this article, the authors analyzed and compared the hydrodynamic fingering pattern induced by CO2 dissolution in aqueous solutions of various color indicators and concluded that color indicators are able only to track pH isocurves and do not always allow to capture the full extent of the fingers.
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Differential diffusion effects on buoyancy-driven instabilities of acid–base fronts: the case of a color indicator
S. Kuster,L. A. Riolfo,L. A. Riolfo,A. Zalts,C. El Hasi,Christophe Almarcha,Philip M. J. Trevelyan,A. De Wit,A. D'Onofrio +8 more
TL;DR: Buoyancy-driven hydrodynamic instabilities of acid-base fronts are studied and a reaction-diffusion model based on charge balances and ion pair mobility explains how the instability scenarios change when the concentration of the reactants are varied.
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Nonlinear fingering dynamics of reaction-diffusion acidity fronts: self-similar scaling and influence of differential diffusion.
D. Lima,A. D'Onofrio,A. De Wit +2 more
TL;DR: A numerical integration of a two-variable reaction-diffusion model of the CT system coupled through an advection term to Darcy's law ruling the evolution of the velocity field of the fluid is performed.