Speaker: Mohamed Sherif Mahrous

Date: Thursday 19th of June 2025, 1:15pm

Abstract:

A significant production of hydrogen is expected inside geological nuclear waste repository. The gaseous phase is foreseen to modify the flows and mechanical conditions of the rock and engineered material. As a part of EURAD 2 project (2024-2028), this work plans to implement the coupling between the different physical (THMC) processes involved in gas migration and to upscale results into the continuum scale. Towards this end, a pore scale Hydro-Mechanical-gas code has been developed in EURAD1 project, based on Smoothed Particle Hydrodynamics, to study water-gas migration accounting for drying within a deformable solid (elastic with thermodynamical damage model). The main objectives of this work are:
1.    Apply the THMC couplings in the near- and far-field at the micro and meso scale (order of tens of pores) in the already existing SPH code.
2.    Investigate the temperature dependency of multiphase flow parameters.
3.    Compute effective properties (e.g., saturation curve, relative permeability, poromechanical properties).
4.    Explore the consequences of usual simplifications.
5.    Provide benchmarking and training data for predictive surrogate models.
6.    Deliver results for code comparisons and experimental benchmarking.