a 30 l| ZAIN IQ2_54001968695...->Fluid flowHomeworkP (4-1)The pipe flow in figure below fills a cylindrical surge tank as shown. At time t = 0, thewater depth in the tank is 30 cm. Estimate the time required to fill the remainder of thetank.D=75 cmV = 25 m/sd= 12 cmV3 = 1.9 m/sP (4-2)A pipe carries oil of density 800 kg/m. At a given point (1) the pipe has a bore area of0.005 m2 and the oil flows with a mean velocity of 4 m/s with a gauge pressure of 800kPa. Point (2) is further along the pipe and there the bore area is 0.002 m? and the levelis 50 m above point (1). Calculate the pressure at this point (2). Neglect friction.ANS(374 kPa)P (4-3)The water level in a tank is 20 m above the ground. A hose is connected to the bottomof the tank, and the nozzle at the end of the hose is pointed straight up. The tank cover isairtight, and the air pressure above the water surface is 2 atm gages. The system is at sealevel. Determine the maximum height to which the water stream could rise.Answer: 40.7 m2 atm20 mQahtan A. MahmoodPage 1Fluid flowHomeworkP (4-4)A siphon has a uniform circular bore of 75 mm diameter and consists of a bent pipe withits crest 1.8 m above the water level and discharge to the atmosphere at level 3.6 mbelow water level. Find the velocity of flow, the discharge and absolute pressure at theprat if the atmospheric pressure is 98.1 kpa. Neglect the losses due to frictiona density of 850 kg/m and kinematic viscosity of 0.00062 m/s is beingdischarged by a 5mm-diameter, 40m-long horizontal pipe from a storage tank, if thepressure in tank is 2 bar above the atmospherie pressure. The height of the liquid levelabove the center of the pipe is 3 m. disregerding the minor losse determine the flowrate of oil through the p pe.P(4 6)

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e flow in figure below fills a cylindrical surger epth in the tank is 30 cm. Estimate the time rec

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Concept explainers

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

a 30 l| ZAIN IQ
2_54001968695...
->
Fluid flow
Homework
P (4-1)
The pipe flow in figure below fills a cylindrical surge tank as shown. At time t = 0, the
water depth in the tank is 30 cm. Estimate the time required to fill the remainder of the
tank.
D=75 cm
V = 25 m/s
d= 12 cm
V3 = 1.9 m/s
P (4-2)
A pipe carries oil of density 800 kg/m. At a given point (1) the pipe has a bore area of
0.005 m2 and the oil flows with a mean velocity of 4 m/s with a gauge pressure of 800
kPa. Point (2) is further along the pipe and there the bore area is 0.002 m? and the level
is 50 m above point (1). Calculate the pressure at this point (2). Neglect friction.
ANS(374 kPa)
P (4-3)
The water level in a tank is 20 m above the ground. A hose is connected to the bottom
of the tank, and the nozzle at the end of the hose is pointed straight up. The tank cover is
airtight, and the air pressure above the water surface is 2 atm gages. The system is at sea
level. Determine the maximum height to which the water stream could rise.
Answer: 40.7 m
2 atm
20 m
Qahtan A. Mahmood
Page 1
Fluid flow
Homework
P (4-4)
A siphon has a uniform circular bore of 75 mm diameter and consists of a bent pipe with
its crest 1.8 m above the water level and discharge to the atmosphere at level 3.6 m
below water level. Find the velocity of flow, the discharge and absolute pressure at the
prat if the atmospheric pressure is 98.1 kpa. Neglect the losses due to friction
a density of 850 kg/m and kinematic viscosity of 0.00062 m/s is being
discharged by a 5mm-diameter, 40m-long horizontal pipe from a storage tank, if the
pressure in tank is 2 bar above the atmospherie pressure. The height of the liquid level
above the center of the pipe is 3 m. disregerding the minor losse determine the flow
rate of oil through the p pe.
P(4 6)

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