Work

Effect of permeability heterogeneity on reactive convective dissolution

Year: 2025

Type: article

Abstract: We investigate the impact of permeability heterogeneity on a bimolecular A + B \ensuremath{\rightarrow} C reaction that creates a nonmonotonic fluid density profile which can trigger or suppress convective instabilities. The intensity and structure of heterogeneity control how mixing and reaction scale. We find opposing trends for the mixing of reactants and the reaction depending on the media stratification and the density profile. In horizontally stratified media, reaction is hindered by heterogeneity, while in vertically stratified ones it favors reaction. A similar reaction-favoring behavior is also observed for anisotropic multi-Gaussian log-permeability fields.

Source: Physical Review Fluids

DOI: 10.1103/jpmc-tcfd

Authors: R. Benhammadi, A. De Wit, J. J. Hidalgo

Institutions: Consejo Superior de Investigaciones Científicas, Institute of Environmental Assessment and Water Research, Université Libre de Bruxelles

Language: English

Topic: CO2 Sequestration and Geologic Interactions

Subfield: Environmental Engineering

Field: Environmental Science

Domain: Physical Sciences

Open Access status: green

Funder: European Commission

Award: G1937883053