I have a simple pipe case with an obstacle in the middle:
I let liquid water flow through it, in transient sim, with the following inlet condition:
The outlet is just the default (pressure=0).
Why am I getting this sudden pressure jump in first time step?
And why is the pressure not uniform at the beginning, but has this linear gradient from low at inlet to high at outlet?
t = 0 s
t = 0.01 s