[sami_lakka]

I'm testing OpenFoam for a simple pipe flow case which consists from inlet, sudden contraction and outlet. The flow is laminar and I use icoFoam-solver.

My B.C for U is fixedValue (1) for inlet and zeroGradient for outlet.

B.C for pressure is zeroGradient for inlet and fixedValue (0) for outlet.

I would expect the flow speed to increase in the contraction but it is the same as in the inlet. I'm probably making a stupid mistake with boundary conditions so could somebody point out my mistake so I can go and cry in the corner.