With viscosity given, the Reynold's number can be determined. The Reynold's number, Re, is used to obtain the friction factor, f.
Considering laminar flow,
Thus,
RELATED TOPIC:
6.0. PIPES
Wednesday 17 April 2019
EXAMPLE 6.1.6. HEAD LOSS USING DARCY WEISBACH FORMULA WITH REYNOLD'S NUMBER
A 1-km pipe of 25mm diameter has fluid with viscosity of 
flowing. What is the head lost if a velocity of 
is maintained?
With viscosity given, the Reynold's number can be determined. The Reynold's number, Re, is used to obtain the friction factor, f.
}{4x10^{-5}\frac{m^{2}}{s}}=1875<&space;2100[laminar&space;flow] "R_{e}=\frac{vD}{\upsilon }=\frac{3\frac{m}{s}\left ( 0.025m \right )}{4x10^{-5}\frac{m^{2}}{s}}=1875< 2100[laminar flow]")
Considering laminar flow,
Thus,
} "h_{f}=0.03413\frac{1000}{0.025}\frac{3^{2}}{2\left ( 9.81 \right )}")
RELATED TOPIC:
6.0. PIPES
With viscosity given, the Reynold's number can be determined. The Reynold's number, Re, is used to obtain the friction factor, f.
Considering laminar flow,
Thus,
RELATED TOPIC:
6.0. PIPES
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