Water exits from a large vessel through a smooth pipe, with a length L = 7 m and an internal diameter D = 5 cm, as shown in Figure Q5. The loss coefficient at the pipe inlet is K₁,1 = 0.8 and at the outlet is K₁,2 = 1. The flowrate out of the pipe is 10 L/s. The density and viscosity of water are p = 1000kg/m³ and μ = 1 mPa.s. a) Find the Reynolds number in the pipe b) Find the friction factor in the pipe, fp. If you use the Moody diagram, include this in your answer clearly showing how you calculated fo. (A Moody diagram is available at the end of this exam paper.) c) What is pressure at the pipe inlet, p₁? (Note: the pressure difference between p2 and p₁ is equal to the total pressure drop along the pipe, including minor and major losses.)

Water exits from a large vessel through a smooth pipe, with a length L = 7 m and an internal diameter D = 5 cm, as shown in Figure Q5. The loss coefficient at the pipe inlet is K₁,1 = 0.8 and at the outlet is K₁,2 = 1. The flowrate out of the pipe is 10 L/s. The density and viscosity of water are p = 1000kg/m³ and μ = 1 mPa.s. a) Find the Reynolds number in the pipe b) Find the friction factor in the pipe, fp. If you use the Moody diagram, include this in your answer clearly showing how you calculated fo. (A Moody diagram is available at the end of this exam paper.) c) What is pressure at the pipe inlet, p₁? (Note: the pressure difference between p2 and p₁ is equal to the total pressure drop along the pipe, including minor and major losses.)

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

Water exits from a large vessel through a smooth pipe, with a length L = 7 m and an
internal diameter D = 5 cm, as shown in Figure Q5. The loss coefficient at the pipe inlet
is KL,1 = 0.8 and at the outlet is KL,2 = 1. The flowrate out of the pipe is 10 L/s.
The density and viscosity of water are p = 1000kg/m³ and u = 1 mPa.s.
a) Find the Reynolds number in the pipe
b) Find the friction factor in the pipe, fp. If you use the Moody diagram, include this in
your answer clearly showing how you calculated fo. (A Moody diagram is available
at the end of this exam paper.)
c) What is pressure at the pipe inlet, p₁? (Note: the pressure difference between p2
and p₁ is equal to the total pressure drop along the pipe, including minor and major
losses.)
P₁.
L
P₂

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