If Prepomax could restrict the hydrostatic pressure to non-negative (zero or positive) or non-positive (zero or negative) values, it would greatly facilitate the modeling of structures that are in contact with the free surface of liquids.
Please add this feature in the next versions of Prepomax if it is possible.
I think this could be easily added. To model the free surface now, one must split the loaded surface.
Thank you for your reply.
If this feature is added, it will make the simulation easier when there are several load cases with different free surface locations.
I have added a pressure cutoff option:
Would that be enough?