Please find the value of the friction factor using Moody Chart attached and judg
ID: 1819493 • Letter: P
Question
Please find the value of the friction factor using Moody Chart attached and judge if this flow is wholly turbulent for the following cases associated with pipeline? You must mark these points in the Moody Chart attached. Re=2.5 times 10 and relative roughness of epsilon/D = 0.01 Re = 7 times 10 , D = 0.2m and roughness (absolute) epsilon = 0.0004m Re = 4.5 times 103, smooth pipe line Re = 1.5 times 10 , relative roughness of epsilon/D = 0.005 Re = 1300, D = 0.2m and roughness (absolute) epsilon = 0.0004m FIGURE 8.10 Friction factor as a function of Reynolds number abd relative roughness for round pipes-the Chart (data from Ref.2 with permission).Explanation / Answer
To look at moody's diagram first look at the reynolds number and then look at the relative roughness and then find the corresponding friction factor. 1.f=0.038 flow is wholly turbulent 2.e/d=0.002 f=0.024 flow is wholly turbulent 3.f=0.013 flow is wholly turbulent 4.f=0.036 flow is wholly turbulent 5 f=0.024 flow is laminar