I need you to do these fluid mechanics questions. Ask me if you have any questions.
ENGR 320
HW7
Due On 4/15/2019
Grading criterial: For each problem I will grade based on the
following items: (1) Problems solving
process (70%); (2) Dimensions and Units (10%); (3)
Calculation errors (10%) and (4) Neatness (10%)
Q1. The pumping rate of crude oil through the Alaska
Pipeline, with an ID of 48 in, is 110,000 barrels per
day (1 barrel is 42 U. S. gallons). (a) Is this a turbulent
flow? (b) What would be the maximum rate if the
flow were constrained to be laminar? Assume that viscosity of
oil is 4×10-3 N-S/m2
Q2. An oil (SG 0.9) issues from the pipe at Q 35 ft3/h.
What is the kinematic
viscosity of the oil in ft3/s? Is the flow laminar?
Q3. The tank-pipe system is to deliver at least 11 m3/h of
water at
20C to the reservoir. What is the maximum roughness height
allowable for the pipe? Assume that viscosity of water is
1×10-3 N-S/m2
Q4. The reservoirs in the figure contain water at 20C. If
the
pipe is smooth with L 4500 m and d 4 cm, what will the
flow
rate in m3/h be for z 100 m?
Q5. The system consists of 1800 m of 5 cm cast-iron pipe,
two 45 and four 90 flanged long-radius elbows, a
fully open flanged globe valve, and a sharp exit into a
reservoir. If the elevation at point 1 is 400 m, what
gage pressure is required at point 1 to deliver 0.01
m3/s of water at 20C into the reservoir?
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