Problem about pressure Idp
I am currently working with DualSPHysics v4.2. I am investigating the sedimentation behavior of solid particles, and I have a problem with the results of density. There is a density gradient from left to right for the "Idp" value that seems not possible.
The hydrostatic pressure "Rhop" seems in okay.
I don't understand what the source of the problem could be.
I attached a graph for both cases for better understanding.
Any help would be appreciated!
Thanks in advance!