FLUID MECHANICS FUNDAMENTALS+APPS
4th Edition
ISBN: 2810022150991
Author: CENGEL
Publisher: MCG
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Textbook Question
Chapter 6, Problem 103P
Consider water flow through a horizontal. short garden hose at a rate of 30 kg/min. The velocity at the inlet is 1m /s and that at the outlet is 11.5 m/s. The hose makes a 1800 turn before the water is discharged. Disregard the weight of the hose and water. Taking the momentum-flux correction factor to be 1.03 at both the inlet and the outlet. the anchoring force required to hold the hose iii place is
(a)7.6N
(b)28.4N
(c) l6.6N
(1)34.1 N
(e) 11.9 N
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The pipe elbow below discharges water at rate of SN/100 (m3/s) into the atmosphere at section 2 . The total volume of the passage between section 1 and 2 is equal to 0.2 m3 and the total mass of the elbow material between section 1 and 2 is equal to 10 x SN (kg). Neglect any friction losses.
Calculate the horizontal and vertical forces acting on the elbow. Also calculate the resultant force and angle of force on the elbow.
****SN=3+6+7+3+2= 21
(b) A 90° elbow in a horizontal pipe is used to direct water flow upward at a rate of 40 kg/s,
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is 50 cm. The weight of the elbow and the water in it is considered to be negligible.
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clearly.
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iii)
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50 cm
Water
40 kg/s
Figure 2
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water to be pumped up to an overhead tank (also
open) 200 ft ave ground. Calculate the work done
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Evaluate the pressure term Evaluate he kinetic
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Hence calculate the work done by the pump What
minimum power of pump (in KW) would be
needed to provide a mass flowrate of 0.27 kg/s
Training
Chapter 6 Solutions
FLUID MECHANICS FUNDAMENTALS+APPS
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