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L1/R1 = 20 and L2/R2 = 50. The inlet velocity at AB is uniform, U1 = 0.277 m/s . The fluid exhausts into the ambient atmosphere which is at a pressure of 1 atm at CD. The density ρ = 1kg/m3 , and the dynamic viscosity is:µ µ = 0.01 kg/(ms).
The Reynolds number Re at AB = (2 R1 ρ U1) /µ = 55.4.
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