15 Water, assumed incompressible, flows steadily through the round pipe in Fig. P3.15. The entrance velocity is constant, r = Uo, and the exit velocity approximates turbulent flow, u =

t mun (1 - rIR)". Determine the ratio U0iu max for this flow. 3.15 Water, assumed incompressible, flows steadily through the round pipe in Fig. P3.15. The entrance velocity is constant, = Ug, and the exit velocity approximates turbulent flow, u =Umux (I - r/R)". Determine the ratio UJ umax for this flow.