flow in a channel

Hi all,

I’m working on a flow in a channel i saw the case studied by A.AMMOHAMED written in his book page 83. It’s about :

Water flows between two parallel plates (channel Fig. 5.12) with a uniform velocity of 0.02 m/s, the gap between the plates is 2.0 cm, and the length

of each plate is 50 cm. Determine the velocity profile and developing length of the flow…

inlet: known velocity: Uin=0.2
outlet: Open boundary condition
Two walls : Bounce Back Boundary

My problem that i didn’t find the same solution as it found by A.A.MOHAMED.