ENCE 305 Fundamentals of Engineering Fluids
PS #30 Solutions
1. Frictional Flow Between Tanks (4 points)
Let us first assume that flow moves from tanks A and B into tank C. That is, we will
say:
QC QA ` QB
(1)
Hence, we can say:
2
2
D3 v3
D1 v1 ` D22 v

ENCE 305 Fundamentals of Engineering Fluids
PS #24
Due: Monday, April 11th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #22
Due: Wednesday, April 6th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly as

ENCE 305 Fundamentals of Engineering Fluids
PS #21 Solutions
1. Water Flow from a Fire Truck (3 points)
To solve this problem, we first use the energy equation for flow from the hydrant exit
to the maximum desired elevation of 60 ft. From that, we can sol

ENCE 305 Fundamentals of Engineering Fluids
PS #22 Solutions
1. Water Pumped from a Lake (4 points)
Starting with the energy equation, we have:
p1
`
v 21
p2 v 22
` z 1 ` hp
`
` z 2 ` ht ` h`
2g
2g
(1)
We know that p1 z1 v1 v2 ht 0. Hence, this simplifies

ENCE 305 Fundamentals of Engineering Fluids
PS #25 Solutions
1. Buckingham- for Pressure (3 points)
[M]
. [F]
.
Given p f pR, q where p 2
, R [L], and
[L ]
[L T2 ]
say that in [M L T] units we have:
[M]
. [F]
2 , we can
[L]
[T ]
n # of variables involve

ENCE 305 Fundamentals of Engineering Fluids
PS #21
Due: Friday, April 1st
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly assem

ENCE 305 Fundamentals of Engineering Fluids
PS #25
Due: Wednesday, April 13th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a

ENCE 305 Fundamentals of Engineering Fluids
PS #23
Due: Friday, April 8th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly assem

ENCE 305 Fundamentals of Engineering Fluids
PS #17
Due: Wednesday, March 23rd
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a

ENCE 305 Fundamentals of Engineering Fluids
PS #19
Due: Monday, March 28th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #20 Solutions
1. Water Flow from a Tank (3 points)
(a) To determine the x-direction component of the anchoring force required to hold
the vane stationery, we use the stationary control volume and the x-direct

ENCE 305 Fundamentals of Engineering Fluids
PS #19 Solutions
1. Water Flow from a Tank (4 points)
(a) First, we note the control volume representation of the tank and dish in Figure 3
where W1 is the weight of the tank plus the weight of the fluid in the

ENCE 305 Fundamentals of Engineering Fluids
PS #16
Due: Monday, March 21st
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #20
Due: Wednesday, March 30th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a

ENCE 305 Fundamentals of Engineering Fluids
PS #13 Solutions
1. Pitot-static Tube (4 points)
Starting with the Bernoulli equation, we have:
p1
air
`
v12
p2 v22
` z1
`
` z2 +1
2g
2g
where p1 0, v2 0, z1 z2 , and p2
v12
2g
water
h
air
water
(1)
h. Thus, w

ENCE 305 Fundamentals of Engineering Fluids
PS #32
Due: Monday, May 2nd
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly assembl

ENCE 305 Fundamentals of Engineering Fluids
PS #30
Due: Wednesday, April 27th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a

ENCE 305 Fundamentals of Engineering Fluids
PS #29
Due: Monday, April 25th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #34 Solutions
1. Waves in a Tank (4 points)
?
For starters we know that c g y. Hence, it follows that the depth of the tank can
be written as:
c2
g
p2 m s1 q2
9.81 m s2
y
0.408 m +1
(1)
(2)
(3)
(a) If the t

ENCE 305 Fundamentals of Engineering Fluids
PS #33 Solutions
1. Fish Ladder (3 points)
First, let us adopt the convention where pqn and pqf represent normal and flood
conditions, respectively. Hence, we can say:
vn
K
pRh,n q2cfw_3 pSo,n q1cfw_2
nn
(1)
vf

ENCE 305 Fundamentals of Engineering Fluids
PS #23 Solutions
1. Curtain of Air (3 points)
Starting with the energy equation, we have:
p1
`
v 21
p2 v 22
` z1 ` hf an
`
` z 2 ` ht ` h`
2g
2g
(1)
v2
where p1 p2 v1 ht 0, z1 u z2 , h` head loss 5 2g2 , and th

ENCE 305 Fundamentals of Engineering Fluids
PS #27
Due: Wednesday, April 20th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly a

ENCE 305 Fundamentals of Engineering Fluids
PS #28
Due: Friday, April 22nd
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #32 Solutions
1. Flow in a Rectangular Channel (3 points)
Starting with Mannings Equation, we have:
v
where So
1 m
1000 m
K 2cfw_3 1cfw_2
R S
+1
n h o
(1)
0.001 and K 1. In addition, we can say:
Rh
A
P
(2

ENCE 305 Fundamentals of Engineering Fluids
PS #29 Solutions
1. Flow in an Iron Pipe System (4 points)
Starting with the major loss in the straight run of pipe, we have:
major loss f
L v2
D 2g
(1)
where L p6 ` 6 ` 4 ` 1q in = 17 in and D 0.75 in. Next, we

ENCE 305 Fundamentals of Engineering Fluids
PS #33
Due: Wednesday, May 4th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #31
Due: Friday, April 29th
Assignments are due at the beginning of class no late homework assignments will be accepted. Make sure to show all work on each problem
and make sure your solutions are neatly asse

ENCE 305 Fundamentals of Engineering Fluids
PS #24 Solutions
1. Grade Lines in a Horizontal Constriction (4 points)
For inviscid flow with no pumps or turbines, the energy line is horizontal at a distance
h 1.8 ft above the outlet. as illustrated in Figur