DescriptionDarcy Friction factor for Re between 10 and 10E8 for values of relative roughness.svg
English: The Darcy friction factor versus Reynolds Number for 10 < Re < 10E8 for smooth pipe and a range of values of relative roughness ε/D. Data are from Nikuradse (1932, 1933), Colebrook (1939), and McKeon (2004).
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