Hi, Using dolfin-2019.1. Here is the relevant code excerpt: import dolfin as dlf DT = dlf.Constant(1e-4) # time step MU1 = dlf.Constant(1.0e-3) # dummy dynamic viscosity value RHO1 = dlf.Constant(917) # density G = dlf.Constant((0, -9.81)) # 2D rectangular channel mesh ---------- mesh = dlf.Re…

Exception: Expecting scalar

nate August 2, 2021, 5:20pm 2

Can you turn this into a minimal working example? There are many missing variable definitions.

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