.. _V7.32.120:

**v7.32.120** WTNP120 - Appearance/disappearance of phase in a two-phase flow: Injection of gas into a bar saturated with pure water
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**Summary:**

This test represents the simulation of gas injection into a saturated geological environment.

The aim is to model and simulate the appearance of gas and the evolution of a two-phase water/hydrogen flow in a porous medium initially saturated with pure water. We consider a "near" -1D situation where the effects of gravity are overlooked. The test case is presented in a 2D configuration but it can be treated equivalently as a 1D problem.

It is a purely hydraulic miscible calculation. The geometry shown corresponds to a bar. The transfer terms are described by a model by Mualem Van-Genuchten. The problem is treated by the various schemes available for modeling two-phase flows: classical finite elements, Decentralized Edge Finite Volumes, Mesh-centered Finite Volumes and Mesh-Centered Finite Volumes.


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    self

.. toctree::
    :maxdepth: 2
    :numbered:

    Probl_me_de_r_f_rence
    Mod_lisation_A
    Mod_lisation_B
    Mod_lisation_C
    Mod_lisation_D
    Mod_lisation_E
    Mod_lisation_F
    Mod_lisation_G
    Synth_se_des_r_sultats