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

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.

• 1. Reference problem
  • 1.1. Geometry
  • 1.2. Material properties
  • 1.3. Boundary and initial conditions
• 2. Modeling A
  • 2.1. Characteristics of modeling A
  • 2.2. Results
  • 2.3. Tested values
• 3. B modeling
  • 3.1. Characteristics of B modeling
  • 3.2. Results
  • 3.3. Tested values
• 4. C modeling
  • 4.1. Characteristics of C modeling
  • 4.2. Results
  • 4.3. Tested values
• 5. D modeling
  • 5.1. Characteristics of modeling D
  • 5.2. Results
  • 5.3. Tested values
• 6. E modeling
  • 6.1. Characteristics of modeling E
  • 6.2. Results
  • 6.3. Tested values
• 7. F modeling
  • 7.1. Characteristics of F modeling
  • 7.2. Results
  • 7.3. Tested values
• 8. G modeling
  • 8.1. Characteristics of G modeling
  • 8.2. Results
  • 8.3. Tested values
• 9. Summary of results