3. Thermo-hydro-mechanical#

3.1. Formulations:#

HH and HH2 modeling:

  • Pure hydraulics, without thermal, without mechanics

  • HH: 2 phases, 1 component per phase

  • HH2: 2 phases, 2 components per phase

Two-phase flows in porous media

  • SUSHI (Scheme Using Stabilization and Hybrid Interfaces), formulation in finite volumes

Flows in a crack/propagation under fluid pressure

  • Joint with hydro-mechanical coupling

*Selective integration*_ JHMS

Regularization adapted to porous media

  • Volume deformation gradient modeling to avoid location problems

Damage model dedicated to heterogeneous materials

  • Random distribution of micro-defects (Weibull) D_ PLAN_GRAD_SIGM + ENDO_HETEROGENE

  • Rock fracturing due to gas injection

3.2. Laws of behavior#

Mechanics

  • Cyclic Hujeux law: Multi-mechanism law for sands and clays, earth dikes

  • Laws of Lagle and Kleine, of viscous Drücker-Prager: viscoplastic laws for rocks (especially argillites); rocks from storage sites

Hydraulics

  • Mualem-Van Genuchten’s law: hydrodynamic law of unsaturated soils. Taking into account the disexisting/appearance of phases. Storage site rocks