[Sargentini]

Dear

I'm trying to simulate a laminar flow using Herschel Bulkley and "non-Newtonian solver."
I adopted nu0 = 1E6, tau0 = 1, k = 0.01 and n = 1 to verify the result gives the analytical value of a Bingham material.
The problem is that pressure is fluctuating too much, although the velocity gain a suitable profile.
Someone please have an idea what might be happening and how to fix this problem.

grateful
Sargentini