Dear all, I am currently working on simulation of two-phase flow in porous media with step-21's tutorial. When I apply viscosity of wetting phase 0.001 Pa.s and non wetting phase 0.004473 Pa.s, the saturation front seems fine. But when I use 0.1 Pa.s as wetting phase and higher pressure inlet, the saturation front gets sharper. I wanted to know the reason of such result. Is it because I didn't consider gravity, capillary pressure? Or any other reason? Thanks in advance!!
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