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Fluid Mechanics
Exam 7, Spring 2008
There are 4 problems on this exam:
Problem 1:
15 points
Problem 2:
20
points
Problem 3:
20
points
Problem 4 :
15 points
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Problem 1 (15 points)
Find the angle
θ
of the spout that will ensure that the jet of water hits the
target at a height H.
Assume all conditions necessary to apply Bernoulli's equation are met.
P
1
at the top of the vat, P
2
at the exit of the spout, P
3
at the target.
Bernoulli from (1) to (2):
P
1
+
½
ρ
v
1
2
+
ρ
gH
vat
= P
2
+ ½
ρ
v
2
2
+
ρ
g(H
spout
)
P
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 Spring '08
 HARTMANN
 Fluid Dynamics, Bernoulli, Mass flow rate, particular cross section

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