57:020 Mechanics of Fluids and Transport
September 8, 2014
NAME
Fluids-ID
Quiz 1. The velocity distribution for the flow of a Newtonian fluid between two fixed wide, parallel
plates is given by equation shown below where V is the mean velocity. The fluid
AU-MECH
Fall 2 0 1 0
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 01
Maximum: 20
Average: 14.66
Minimum: 4.5
Problem 1:
A chemist views cutting a loaf of bread as an affirmation of the enormous amount of energy
that is required to overcome the strong interm
AU-MECH
SPRING 2 0 1 1
MECH 3030
FLUID MECHANICS
SOLUTION to Q U I Z 6
Average:16.39 Minimum:5
Maximum:20
Problem (20 Points):
A detailed solution will be given for the case of Q = 5 GPM and the results of the remaining cases
will be presented in the Tabl
AU-MECH
Spring 2 0 1 1
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 5
Maximum: 20
Average: 14.8 Minimum:4
Problem 1 (17 Points):
(a)
The power of the mixer (P) is hypothesized to depend on the liquid density ( ), liquid
viscosity ( ), diameter of the shaft
AU-MECH
Spring 2011
MECH 3030
FLUID MECHANICS
SOLUTION TO Q U I Z 4
Average:16.2 Minimum:8
Maximum: 20
x
Problem 1:
1. Streamlines
(3 points)
y
1
4
Problem 2:
A. (a)
3
(1 point)
2
B. Since this is a steady state problem, the time rate term in the
continui
AU-MECH
Spring 2011
MECH 3030
FLUID MECHANICS
SOLUTION TO Q U I Z 3
Average: 14.83
Minimum:5
Maximum: 20
x
Problem 1 (20 pts)
1. (d)
(2 point)
2. Since this is a steady state problem, the time rate term in the
continuity equation cancels out. The continui
AU-MECH
Spring 2011
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 02
Maximum: 20 Average: 12.857
Minimum: 4
Problem 1 (5 pts):
(a) The hydrostatic pressure, p , is obtained by invoking its equivalency to a column (head) of
fluid:
p = p feet phead = blood g (
57:020 Mechanics of Fluids and Transport Processes
Professor Fred Stern Fall 2014
Chapter 9
1
Chapter 9 Flow over Immersed Bodies
Fluid flows are broadly categorized:
1. Internal flows such as ducts/pipes, turbomachinery, open
channel/river, which are bou
32AU-MECH
Spring 2 0 11
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 01
Maximum:20 Average: 16.75
Minimum: 9
Problem 1:
A chemist views cutting a block of wood as an affirmation that energy is required to
overcome the strong intermolecular forces that hold
57:020 Mechanics of Fluids and Transport Fall 2014
December 19, 2014
1. The tank in Fig. 1(a) has a 4-cm-diameter plug at the bottom on the right. The manometer
reading h on the left is 14.85 cm. (a) Estimate the water depth H in the tank by using the
man
AU-MECH
Fall
2010
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 02
Maximum: 20 Average: 11.69 Minimum: 5
Problem 1 (5 pts):
(a) Pressure difference, p , is obtained by invoking its equivalency to a column (head) of fluid:
p = p feet p head = 131 mmHg = Hg g
57:020 Mechanics of Fluids and Transport
September 15, 2014
NAME
Fluids-ID
Quiz 2. A rectangular gate 6ft tall and 5ft wide in the side of an open tank is
held in place by force F as indicated in the Figure. The weight of the gate is
negligible, and the h
AU-MECH
FALL 2010
MECH 3030
FLUID MECHANICS
SOLUTION TO Q U I Z 3
Average:13.48
Minimum:7
Maximum: 20
3
Problem 1 (20 pts)
(a) Since this is a steady state problem, the time rate term
in the continuity equation cancels out. The continuity
equation then be
57:020 Mechanics of Fluids and Transport
December 10, 2014
NAME
Fluids-ID
Quiz 14. A smooth 0.10-m-diameter cork ball (SG = 0.21) is tied
to an object on the bottom of a river as is shown in Figure 2.
The flow speed U is 1.12 m/s. Neglect the string drag.
57:020 Mechanics of Fluids and Transport
December 8, 2014
NAME
Fluids-ID
Quiz 13. Suppose you buy a 4- by 8-ft sheet of plywood and put it on your roof rack. You drive the car at
35 mi/h. The flow is turbulent from the leading edge of the board and the bo
57:020 Mechanics of Fluids and Transport
December 3, 2014
NAME
Fluids-ID
Quiz 12. The pump shown in Figure delivers a head of 250 ft to the water. The differene in elevation of
the two ponds is 200 ft. (P =gQhp; = 1.94 slugs/ft3; = 2.3410-5 lbs/ft2; g = 3
57:020 Mechanics of Fluids and Transport
November 14, 2014
NAME
Fluids-ID
Quiz 11. The drag force, R, on a sphere located in a pipe
through which a fluid is flowing is to be determined experimentally. Assume that the drag is a function of the sphere diame
57:020 Mechanics of Fluids and Transport
November 10, 2014
NAME
Fluids-ID
Quiz 10. Consider a steady, incompressible, parallel, laminar flow of a viscous fluid falling between two infinite, vertical walls as shown in Figure. The distance
between the walls
57:020 Mechanics of Fluids and Transport
November 7, 2014
NAME
Fluids-ID
Quiz 9. The exit plane of a 0.20 m diameter pipe is partially blocked by a plate with a hole in it that produces a 0.10 m diameter stream as shown in the figure. The water velocity i
57:020 Mechanics of Fluids and Transport
October 31, 2014
NAME
Fluids-ID
Quiz 8. When the pump in the figure draws 220 3 / of
water at 20 from the reservoir, the total friction
head loss is 5 . The flow discharges through a
nozzle to the atmosphere. Estim
57:020 Mechanics of Fluids and Transport
October 24, 2014
NAME
Fluids-ID
Quiz 7. Water at 20C flows through an elbow and exits to the atmosphere (2 = 0 gage). The pipe diameter is 1 = 10 cm, while D2 = 3 cm. At a mass flow rate of 15.3 kg/s, the pressure
57:020 Mechanics of Fluids and Transport
October 22, 2014
NAME
Fluids-ID
Quiz 6. Three pipes steadily deliver water to a large exit pipe in Figure. The velocity V2=5 m/s, and the
exit flow rate Q4=0.0333 m3/s. Find V1, and V3 if it is know that increasing
AU-MECH
Fall 2 0 1 0
MECH 3030
FLUID MECHANICS
SOLUTION TO QUIZ 6
Maximum: 20 Average:13.56
Minimum:10
Problem (20 Points):
(a) The average velocity is equal to the volumetric flow
rate divided by the area of the cross section of tube:
4Q
4 0.00063
Q
V