Question

e by using Boundary and Polytropie sten can syst cal is MAE 322 Spring 2018 Quiz # 2 Wed Dr. Gall Closed Book and Closed Notes 1. Air flows through i 1.0 inch diametet smooth pipe (/D-0) at a velocity of 75.it/s Assuming that the flow is fully developed and flows 25 feet before encountering the elbow, then flows another 2.5 feet before exciting the pipe. The density of air is 0.002378 sl/nt and the viscosity of air is 0.00000037 lbs/12 The measured pressure drop, Ap, between the entrance of the pipe and the exit is 13.24 lbs/ft2, Determine the Reynolds number and the equivalent length of the elbow. The equivalent length is expressed in so many diameters ( Ex: 42 D) 4P-S SLOV Re: RVS a pon- f L tev (22.002578 X 25) (10) - 192027. o2 ( CocaCo34) Re=_1182021.ol Ap for each 2.5 length= (2 points) Ib/ft2 (2 points) _D (6 points) Lelbow equiv length =

Answer 1

ven Din Re c 4 0168.92

2 0.02D O.2