3. When water (kinematic viscosity 1.2 mm²/s) flows steadily at the rate of 18.5 litres/s through 25 m of a 100 mm diame
Posted: Fri Jul 01, 2022 6:40 am
3. When water (kinematic viscosity 1.2 mm²/s) flows steadily at the rate of 18.5 litres/s through 25 m of a 100 mm diameter pipe, the head loss is 1.89m. Estimate the relative roughness, the velocity on the axis of the pipe and the shear stress at wall. Use u/(To/p)¹/2 = 5.75 log10 (y/k) + 8.48