Speaker
Description
In this work, we present advanced numerical models to simulate two-phase flow in reactive environments across multiple scales of interest. The model seamlessly integrates continuum-scale and pore-scale reactive transport within a unified framework using the same set of partial differential equations. It extends the Darcy-Brinkman-Stokes formulation to two-phase flow, enabling a comprehensive description of flow dynamics in both resolved and unresolved regions.
In resolved regions, the fluid-fluid interface is dynamically tracked using a volume-of-fluid approach, while the fluid-solid interface evolves in response to chemical reactions. In unresolved regions, two-phase flow is modeled using effective properties, including relative permeabilities and capillary pressure. This dual-scale approach ensures consistency and adaptability across varying levels of resolution.
The capabilities of the model are demonstrated through simulations of mineral dissolution and the subsequent gas exsolution processes, capturing critical reactive transport phenomena at both the pore-scale and continuum-scale. These results underscore the model’s potential for advancing our understanding of coupled flow and reactive transport processes in complex environments.
| Country | France |
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