hello，everyone. I got a problem. When I used the phase field method to simulate oil-water displacing process. The geometry is from the pore scale flow model from comsol application library,see the attached image. The adaptive mesh method was used to remesh the interfaces referencing some papes, but it still not work. I tried to ajust the interface thickness, it also can't get converged. But It was found that the model work when i used the air to displace water, namely, less density ratio. I don't know why and how to set the initial mesh and adaptive mesh m, please help me. Thanks a lot.
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