Speaker
Description
We present a computational framework for simulating tightly coupled thermo-hydro-mechanical processes in porous media, as encountered in subsurface energy and environmental applications. The model is based on a fully coupled, quasi-static thermo-poroelasticity model, capturing the mutual feedback between deformation, pressure, and temperature.
To solve this multiphysics system efficiently and robustly, we employ a unified enriched Galerkin (EG) discretization. The approach combines the advantages of continuous and discontinuous methods: a locking-free EG formulation is used for the mechanical response, while locally conservative EG discretizations ensure accurate mass and energy balance for flow and heat transport. As a result, the method preserves key physical conservation properties at significantly lower computational cost than standard discontinuous Galerkin or mixed finite element approaches.
We present a mathematical theory of well-posedness and optimal convergence, and validate the approach through numerical experiments that demonstrate accuracy, robustness, and mass and energy conservation. These results indicate that enriched Galerkin methods offer a practical and scalable tool for multiphysics simulations in porous media, bridging rigorous numerical analysis with applications at laboratory and field scales.
| Country | USA |
|---|---|
| Acceptance of the Terms & Conditions | Click here to agree |
