Capillary pressure curve

[15751831936]

[Dear prof，
I followed the tutorial for a drainage simulation, but I found some problems when I customized the fluid properties. When I set the contact angle greater than 90 degrees I can get the capillary pressure curve。but when I set the contact angle less than 90 degrees, I can't get the capillary pressure curve. I tried print(mip) and found that no intrusion happened。

[likeduck]

Probably because you applied the trapping function

[15751831936]

I tried to delete the trapping function but the result is still like this

[likeduck]

You can try to delete the set_outlet_BC at the same time. Its all my idea for this question.

[15751831936]

Thanks for your help, I deleted them all but the problem persists, I think the problem might be the Washburn equation. A contact angle of less than 90 degrees may turn the calculated capillary pressure into a negative value, thus resulting in no invasion. I have been learning openpnm for a short time, maybe this idea is also wrong