DOAJ Open Access 2017

Onset of Convection in the Presence of a Precipitation Reaction in a Porous Medium: A Comparison of Linear Stability and Numerical Approaches

Parama Ghoshal Min Chan Kim Silvana S. S. Cardoso

Lihat Sumber DOI

Abstrak

Reactive convection in a porous medium has received recent interest in the context of the geological storage of carbon dioxide in saline formations. We study theoretically and numerically the gravitational instability of a diffusive boundary layer in the presence of a first-order precipitation reaction. We compare the predictions from normal mode, linear stability analysis, and nonlinear numerical simulations, and discuss the relative deviations. The application of our findings to the storage of carbon dioxide in a siliciclastic aquifer shows that while the reactive-diffusive layer can become unstable within a timescale of 1 to 1.5 months after the injection of carbon dioxide, it can take almost 10 months for sufficiently vigorous convection to produce a considerable increase in the dissolution flux of carbon dioxide.

Topik & Kata Kunci

Thermodynamics Descriptive and experimental mechanics

Penulis (3)

Parama Ghoshal

Min Chan Kim

Silvana S. S. Cardoso

Format Sitasi

APA MLA BibTeX

Ghoshal, P., Kim, M.C., Cardoso, S.S.S. (2017). Onset of Convection in the Presence of a Precipitation Reaction in a Porous Medium: A Comparison of Linear Stability and Numerical Approaches. https://doi.org/10.3390/fluids3010001

Akses Cepat

Lihat di Sumber doi.org/10.3390/fluids3010001

Informasi Jurnal

Tahun Terbit: 2017
Sumber Database: DOAJ
DOI: 10.3390/fluids3010001
Akses: Open Access ✓