3.Mechanics of materials and complex phenomena

[13001-06-01] Evaluation of permeability characteristics in porous media based on pore-scale numerical experiments (Proceedings of Symposium on Applied Mechanics)

*Ryota Itto¹, Ikkoh Tachibana¹, Reika Nomura¹, Shinske Takase², Shuji Moriguchi¹, Kenjiro Terada¹ (1. Tohoku University, 2. Hachinohe Institute of Technology)

Keywords:Non-Darcy flow, Pore-level Simulation, Permeable Porous Media

A series of three-dimensional fluid simulations at the pore level are performed using the SUPG/PSPG stabilized finite element method to investigate the seepage behavior during the transition from the Darcy flow to the non-Darcy flow region in porous media. Based on the simulated results, the flow characteristics are explored to propose a simple and reasonable modeling with a concept of Equivalent Permeability Coefficient Ratio(EPC-Ratio). As a result, it was found that the void ratio has relatively low contribution on the EPC-Ratio, the proposed modeling can accurately estimate the EPC in the non-Darcy flow region.