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The hydrological team at LSCE has been active in the field of hydrological & hydrogeological modeling with applications in heterogeneous porous media, fractured media, coupled transfers. See some references below.

The Cast3M code (http://www-cast3m.cea.fr/)

Cast3M is a multi-physics code dealing with various applications, initially developed with a finite element scheme for nuclear reactor applications, including solid and structure mechanics, fluid and heat transfers. It consists of various elemental bricks called procedures that can be organized together for the resolution of more complex problems or equations. The resolution of equations dealing with transfers in porous media has been developed from the 90s on. Cast3M now provides tools to resolve a large range of problems including saturated flows, unsaturated flows (Richard’s equation and multi-phase flow), Eulerian and Lagrangian transport by means of Finite Volume and Mixed Hybrid Finite Element schemes. The latter proved accurate and efficient for nuclear waste storage applications (flow and transport) within an inter-comparison exercise (Bernard-Michel, 2004) making Cast3M a reference code for applications in the transfer in porous media. Several extensions including these procedures were developed in the past taking advantage of the modular properties of the code, for instance to simulate couplings of hydrological processes with mechanics and/or heat transfers, or to solve a set of equations coupling surface and sub-surface transfers (Weil et al, 2009), or specialize the simulation tools for applications dealing with fractured media (e.g. Grenier et al, 2009).