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Pattern formation and coarsening dynamics in three-dimensional convective mixing in porous media

Fu, Xiaojing and Cueto-Felgueroso, Luis and Juanes, Ruben (2013) Pattern formation and coarsening dynamics in three-dimensional convective mixing in porous media. Philosophical Transactions A: Mathematical, Physical and Engineering Sciences, 371 (2004). Art. No. 20120355. ISSN 1364-503X. https://resolver.caltech.edu/CaltechAUTHORS:20200903-150124644

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Abstract

Geological carbon dioxide (CO₂) sequestration entails capturing and injecting CO₂ into deep saline aquifers for long-term storage. The injected CO₂ partially dissolves in groundwater to form a mixture that is denser than the initial groundwater. The local increase in density triggers a gravitational instability at the boundary layer that further develops into columnar plumes of CO₂-rich brine, a process that greatly accelerates solubility trapping of the CO₂. Here, we investigate the pattern-formation aspects of convective mixing during geological CO₂ sequestration by means of high-resolution three-dimensional simulation. We find that the CO₂ concentration field self-organizes as a cellular network structure in the diffusive boundary layer at the top boundary. By studying the statistics of the cellular network, we identify various regimes of finger coarsening over time, the existence of a non-equilibrium stationary state, and a universal scaling of three-dimensional convective mixing.


Item Type:Article
Related URLs:
URLURL TypeDescription
https://doi.org/10.1098/rsta.2012.0355DOIArticle
ORCID:
AuthorORCID
Fu, Xiaojing0000-0001-7120-704X
Juanes, Ruben0000-0002-7370-2332
Additional Information:© 2013 The Author(s). Published by the Royal Society. Published online 13/12/2013; Published in print 13/12/2013. One contribution of 13 to a Theme Issue ‘Pattern formation in the geosciences’.
Subject Keywords:non-equilibrium flow, cellular network, Rayleigh–Bénard instability, CO₂ sequestration
Issue or Number:2004
Record Number:CaltechAUTHORS:20200903-150124644
Persistent URL:https://resolver.caltech.edu/CaltechAUTHORS:20200903-150124644
Official Citation:Fu X, Cueto-Felgueroso L, Juanes R. 2013 Pattern formation and coarsening dynamics in three-dimensional convective mixing in porous media. Phil Trans R Soc A 371: 20120355; doi: 10.1098/rsta.2012.0355
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:105251
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:08 Sep 2020 18:22
Last Modified:08 Sep 2020 18:22

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