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Pipe Flow Experiments - Warwick

-1- pipe Flow Experiments Group: _____ Day: _____ Week: _____ Library Card Number of Your Group Members -2- University of Warwick School of Engineering ES2A7 laboratory Exercises Section I Theoretical Preparation 1. Introduction In this experiment you will investigate the frictional forces inherent in laminar and turbulent pipe flow. By measuring the pressure drop and flow rate through a pipe , an estimate of the coefficient of friction (friction factor) will be obtained. Two different flow situations will be studied, laminar flow and turbulent flow. The experimentally obtained values of the coefficient of friction will then be compared with established results by plotting them on the Moody chart provided.

The accepted transition Reynolds number for flow in a circular pipe is Re 2,300dc, ρUd μ =≈. For flow through a pipe, at what velocity will this occur at 20DC for: (a) oil flow (861 3 ρoil = kg m, 0.01743 2 μoil = Ns m) with diameter of 19mm; (b) water flow (998 3 ρwater = kg m, 0.001003 2 μwater = Ns m) with diameter of 17mm? Solution ...

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