A 25 cm diameter pipe carries a (p=1.22kg/m³) (v=1.5x10-5m²/sec) at a average velocity of 8.0 m/sec. The equivalent san grain roughness on the pipe surface is 0.80 mm The flow is detected to be fully rough turbulent

A 25 cm diameter pipe carries a (p=1.22kg/m³) (v=1.5x10-5m²/sec) at a average velocity of 8.0 m/sec. The equivalent san grain roughness on the pipe surface is 0.80 mm The flow is detected to be fully rough turbulent

Fundamentals of Geotechnical Engineering (MindTap Course List)

5th Edition

ISBN:9781305635180

Author:Braja M. Das, Nagaratnam Sivakugan

Publisher:Braja M. Das, Nagaratnam Sivakugan

Chapter6: Hydraulic Conductivity

Section: Chapter Questions

Problem 6.14P

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Question

A 25 cm diameter pipe carries air
(p=1.22kg/m³) (v=1.5x10-5m²/sec) at an
average velocity of 8.0 m/sec. The equivalent sand
grain roughness on the pipe surface is 0.80 mm.
The flow is detected to be fully rough turbulent.
(a) What is the friction factor f?
(b) What is the boundary shear stress?

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