Dear Dumux users, My simulations show a progressive permeability interface between two different materials instead of a sharp transition from one material to another. Here's the permeability profile I obtain & the assumed interfaces between the different layers in my conceptual model: [image: image.png] I am using test/2p2c/injection, the box method. The problem persists even with a local refinement of the grid.
Do you have any suggestions for possible ways how to capture the sharp interface between two different materials? Thank you in advance for your help. Kenza
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