Experimental analysis of density fingering instability modified by precipitation

Revista con referato

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Autores principales: Binda, Leonardo David, D'Onofrio, Alejandro Gustavo, Zalts, Anita, El Hasi, Claudio
Formato: Artículo publishedVersion
Lenguaje:Inglés
Publicado: American Institute of Physics 2025
Materias:
Instabilities
CO2
Hele-Shaw
Precipitation
Ciencias Químicas
Acceso en línea:http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2371
Aporte de:
Repositorio Institucional Digital de Acceso Abierto (UNGS) de Universidad Nacional de General Sarmiento
id I71-R177-UNGS-2371
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spelling I71-R177-UNGS-23712025-08-07T16:31:24Z Experimental analysis of density fingering instability modified by precipitation Binda, Leonardo David D'Onofrio, Alejandro Gustavo Zalts, Anita El Hasi, Claudio Instabilities CO2 Hele-Shaw Precipitation Ciencias Químicas Revista con referato Fil: D'Onofrio, Alejandro Gustavo. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: D'Onofrio, Alejandro Gustavo. Universidad de Buenos Aires. Facultad de Ingeniería. Departamento de Física. Grupo de Medios Porosos; Argentina. Fil: D'Onofrio, Alejandro Gustavo. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Fil: Binda, Leonardo David. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. Fil: Zalts, Anita. Universidad Nacional de General Sarmiento. Instituto de Ciencias; Argentina. We analyze the effect of precipitate formation on the development of density induced hydrodynamic instabilities. In this case, the precipitate is BaCO3, obtained by reaction of CO2 with aqueous BaCl2. CO2(g) dissolution increases the local density of the aqueous phase, triggering Rayleigh–Taylor instabilities and BaCO3 formation. It was observed that at first the precipitate was formed at the finger front. As the particles became bigger, they began to fall down from the front. These particles were used as tracers using PIV technique to visualize the particle streamlines and to obtain the velocity of that movement. This falling produced a downward flow that might increase the mixing zone. Contrary to expectations, it was observed that the finger length decreased, indicating that for the mixing zone development, the consumption of CO2 to form the precipitate is more important than the downward flow. The mixing zone length was recovered by increasing the availability of the reactant (higher CO2 partial pressure), compensating the CO2 used for BaCO3 formation. Mixing zone development rates reached constant values at shorter times when the precipitate is absent than when it is present. An analysis of the nonlinear regime with and without the precipitate is performed. 2025-08-07T16:28:34Z 2025-08-07T16:28:34Z 2017 info:eu-repo/semantics/article info:ar-repo/semantics/artículo info:eu-repo/semantics/publishedVersion Binda, L. D., Zalts, A., El Hasi, C. y D'Onofrio, A. G. (2017). Experimental analysis of density fingering instability modified by precipitation. Chaos, 27(5), 053111. 1054-1500 http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2371 eng http://dx.doi.org/10.1063/1.4983670 info:eu-repo/semantics/restrictedAccess https://creativecommons.org/licenses/by-nc-nd/4.0/ application/pdf American Institute of Physics Chaos. May. 2017; 27(5): 053111 https://pubs.aip.org/aip/cha/issue/27/5
institution Universidad Nacional de General Sarmiento
institution_str I-71
repository_str R-177
collection Repositorio Institucional Digital de Acceso Abierto (UNGS)
language Inglés
orig_language_str_mv eng
topic Instabilities
CO2
Hele-Shaw
Precipitation
Ciencias Químicas
spellingShingle Instabilities
CO2
Hele-Shaw
Precipitation
Ciencias Químicas
Binda, Leonardo David
D'Onofrio, Alejandro Gustavo
Zalts, Anita
El Hasi, Claudio
Experimental analysis of density fingering instability modified by precipitation
topic_facet Instabilities
CO2
Hele-Shaw
Precipitation
Ciencias Químicas
description Revista con referato
format Artículo
Artículo
publishedVersion
author Binda, Leonardo David
D'Onofrio, Alejandro Gustavo
Zalts, Anita
El Hasi, Claudio
author_facet Binda, Leonardo David
D'Onofrio, Alejandro Gustavo
Zalts, Anita
El Hasi, Claudio
author_sort Binda, Leonardo David
title Experimental analysis of density fingering instability modified by precipitation
title_short Experimental analysis of density fingering instability modified by precipitation
title_full Experimental analysis of density fingering instability modified by precipitation
title_fullStr Experimental analysis of density fingering instability modified by precipitation
title_full_unstemmed Experimental analysis of density fingering instability modified by precipitation
title_sort experimental analysis of density fingering instability modified by precipitation
publisher American Institute of Physics
publishDate 2025
url http://repositorio.ungs.edu.ar:8080/xmlui/handle/UNGS/2371
work_keys_str_mv AT bindaleonardodavid experimentalanalysisofdensityfingeringinstabilitymodifiedbyprecipitation
AT donofrioalejandrogustavo experimentalanalysisofdensityfingeringinstabilitymodifiedbyprecipitation
AT zaltsanita experimentalanalysisofdensityfingeringinstabilitymodifiedbyprecipitation
AT elhasiclaudio experimentalanalysisofdensityfingeringinstabilitymodifiedbyprecipitation
_version_ 1842217825024868352

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