3D Pore-Scale Mixing Interface Evolution

• DOI: 10.48550/arxiv.2410.23539
• Publication Date: 2024-10-30
• Authors: Daniel M C Hallack; Guillem Sole‐Mari; Saif Farhat; Diogo Bolster
• Keywords: Interface (matter)

The effective mixing behavior of solutes in porous media is fundamentally connected to the development a local interface between two initial solutions, which characterized by complex lamellar structure. deformation controlled interplay advection and diffusion, generate mechanisms lamella stretching shrinking, respectively. Based on results pore-scale numerical simulations, we develop mechanistic single parabolic model (SPLM) capture evolution across various temporal P\'eclet number scales. shows near-perfect agreement with 2D parallel plates scenario promising for 3D medium. SPLM also establishes regimes equilibrium area transient interface. These findings represent step forward towards eventually incorporating limitation into general macroscopic reactive transport models.