Fox and McDonald's Introduction to Fluid Mechanics
9th Edition
ISBN: 9781118912652
Author: Philip J. Pritchard, John W. Mitchell
Publisher: WILEY
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Textbook Question
Chapter 7, Problem 48P
A flow rate of 0:18 m3/s of water at 20°C discharges from a 0.3 m pipe through a 0.15 m nozzle into the atmosphere. The axial force component exerted by water on the nozzle is 3 kN. If frictional effects may be ignored, what corresponding force will be exerted on a 4:1 prototype of nozzle and pipe discharging 1:13 m3/s of air at 101.4 kPa and 15°C to the atmosphere? If frictional effects are included, the axial force component is 3.56 kN. What flow rate of air is then required for dynamic similarity? What is the corresponding force on the nozzle discharging air?
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H.W 5.4
Calculate the load that will make point A move to the left by 6mm, E-228GPa. The diameters
of the rods are as shown in fig. below.
2P-
PA
50mm
B
200mm
2P
0.9m
1.3m
d₁
=
=
Two solid cylindrical road AB and
BC are welded together at B and
loaded as shown. Knowing that
30mm (for AB) and d₂
50mm (for BC), find the average
normal stress in each road and the
total deformation of road AB and
BC. E=220GPa
H.W 5.3
60kN
A
For the previous example calculate the
value of force P so that the point A will not
move, and what is the total length of road
AB at that force?
P◄
A
125kN
125kN
0.9m
125kN
125kN
0.9m
B
B
1.3m
1.3m
Class:
B
Calculate the load that will make point A move to the left by 6mm, E-228GPa
The cross sections of the rods are as shown in fig. below.
183
P-
Solution
1.418mm
200mm
80mm
3P-
18.3
A
080mm
B
200mm
3P-
0.9m
إعدادات العرض
1.3m
4.061mm
Chapter 7 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
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