Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 7, Problem 7.7PP
The setup shown in Fig. 7.16 is being used to measure the energy loss across a valve. The velocity of flow of the oil is
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water flows through 30 mm internal diameter pipe at atmospheric pressure. pitot tube measures the velocity of water at the center of pipe as shown in the fig. the pressure difference between the impact tube and the static tube is 20cm of carbon tetrachloride (density: 1600 kg/m³). calculate the volumetric flow rate through the pipe in cubic meter per hour. velocity of water is cp.
A pump is used in a building to lift water from a ground floor. The pump is pushing 60l/sec of water through a 0.1m diameter to above floor which is 5m high
If the average velocity in the pipe is 6m/s. what will major energy loss if the dynamic viscosity of water is 8.9 x 10-4s.
Due to vibration and noise issue in a pipe the velocity of pump is decided to set at 2.5 m/s. What will new major energy?
Calculate the minor energy loss if length of the pipe is 15m. use f = 0.03, = 1, = 0.9
Analyse the relationship between frictional energy loss under different gravitational flow conditions
A pump is used in a building to lift water from a ground floor. The pump is pushing 60l/sec of water through a 0.1m diameter to above floor which is 5m high. Calculate the velocity by which the water exits the pipe if water enters the pump at 30kPa and exists with 5kPa.
Figure 6 Water flow in a pipe
If the average velocity in the pipe is 6m/s. what will major energy loss if the dynamic viscosity of water is 8.9 x 10-4s.
Due to vibration and noise issue in a pipe the velocity of pump is decided to set at 2.5 m/s. What will new major energy?
Calculate the minor energy loss if length of the pipe is 15m. use f = 0.03, = 1, = 0.9
Analyse the relationship between frictional energy loss under different gravitational flow conditions
Chapter 7 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 7 - A horizontal pipe carries oil with a specific...Ch. 7 - Water at 40 F is flowing downward through the...Ch. 7 - Find the volume flow rate of water exiting from...Ch. 7 - A long DN 150 Schedule 40 steel pipe discharges...Ch. 7 - Figure 7.14 shows a setup to determine the energy...Ch. 7 - A test setup to determine the energy loss as water...Ch. 7 - The setup shown in Fig. 7.16 is being used to...Ch. 7 - A pump is being used to transfer water from an...Ch. 7 - In Problem 7.815 (Fig. 7.17), if the left-hand...Ch. 7 - A commercially available sump pump is capable of...
Ch. 7 - A submersible deep-well pump delivers 745 gal/h of...Ch. 7 - In a pump test the suction pressure at the pump...Ch. 7 - The pump shown in Fig. 7.19 is delivering...Ch. 7 - The pump in Fig. 7.20 delivers water from the...Ch. 7 - Repeat Problem 7.14, but assume that the level of...Ch. 7 - Figure 7.21 shows a pump delivering 840L/min of...Ch. 7 - Figure 7.22 shows a submersible pump being used to...Ch. 7 - Figure 7.23 shows a small pump in an automatic...Ch. 7 - The water being pumped in the system shown in Fig....Ch. 7 - A manufacturer's rating for a gear pump states...Ch. 7 - The specifications for an automobile fuel pump...Ch. 7 - Figure 7.26 shows the arrangement of a circuit for...Ch. 7 - Calculate the power delivered to the hydraulic...Ch. 7 - Water flows through the turbine shown in Fig....Ch. 7 - Calculate the power delivered by the oil to the...Ch. 7 - What hp must the pump shown in Fig. 7.30 deliver...Ch. 7 - If the pump in Problem 7.26 operates with an...Ch. 7 - The system shown in Fig. 7.31 delivers 600 L/min...Ch. 7 - Kerosene (sg = 0.823 ) flows at 0.060m3/s in the...Ch. 7 - Water at 60 F flows from a large reservoir through...Ch. 7 - Figure 7.34 shows a portion of a fire protection...Ch. 7 - For the conditions of Problem 7.31 and if we...Ch. 7 - In Fig. 7.35 kerosene at 25 F is flowing at 500...Ch. 7 - For the system shown in Fig. 7.35 and analyzed in...Ch. 7 - Compute the power removed from the fluid by the...Ch. 7 - Compute the pressure at point 2 at the pump inlet.Ch. 7 - Compute the pressure at point 3 at the pump...Ch. 7 - Compute the pressure at point 4 at the press...Ch. 7 - Compute the pressure at point 5 at the press...Ch. 7 - Evaluate the suitability of the sizes for the...Ch. 7 - The portable, pressurized fuel can shown in Fig....Ch. 7 - Professor Crocker is building a cabin on a...Ch. 7 - If Professor Crocker's pump, described in Problem...Ch. 7 - The test setup in Fig. 7.39 measures the pressure...Ch. 7 - If the fluid motor in Problem 7.44 has an...Ch. 7 - A village with a need for a simple irrigation...Ch. 7 - As a member of a development team for a new jet...Ch. 7 - A fire truck utilizes its engine to drive a pump...Ch. 7 - A home has a sump pump to handle ground water from...Ch. 7 - In Problem 6.107 an initial calculation was made...Ch. 7 - A creek runs through a certain part of a campus...Ch. 7 - A hot tub is to have 40 outlets that are each 8 mm...Ch. 7 - A large chipper/shredder is to be designed for use...
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- B1. A water with viscosity 11.4x103 poise is flowing through a pipe of diameter 300 mm at the rate of 375 litres per sec. Find the Reynold's Number & the head lost due to friction in the pipe of length 1.5 km. The velocity of flow of water (in m/s) is The value of Reynold's Number is The frictional loss in the pipe (in m) isarrow_forward3. Calculate the Reynolds number, Re for water flow in a circular pipe. The diameter of the pipe is 50 mm, the density of water is 998 kg/m', the volumetric oil flowrate is 720 L'min, and the dynamic viscosity of water is 1.2 centipoisearrow_forwardwater is flowing in a 2 inch pipe at a velocity of 0.2 m/s. what pipe size in inches will double the velocity while keeping its flow ratearrow_forward
- Through a system composed of piping flows oil with specific gravity equal to0.86, calculate the velocity in each section of pipe and the pressure that is generated in the section1 and 2 if they are at different heights.arrow_forwardB1. A water with viscosity 11.4x10-3 poise is flowing through a pipe of diameter 300 mm at the rate of 500 litres per sec. Find the Reynold's Number & the head lost due to friction in the pipe of length 1 km. (Enter only the values by referring the unit given. Also upload the hand written answers in the link provided) The velocity of flow of water (in m/s) is The value of Reynold's Number is The frictional loss in the pipe (in m) isarrow_forwardIt is desired to pass water from point 1 to point 3 by means of a hydraulic pump, both tanks are open to the atmosphere, the diameter of the pipe is uniform. The external diameter has a value of 28 mm with a thickness of 2mm. If the friction losses are estimated to be 4N.m/N, it is known that the fluid velocity in the pipe is 3m/s What will be the flow rate flowing through the pipe?arrow_forward
- Q1. The figure below shows a hot water tank, with a pumping arrangement to continuously circulate water in a loop. Plastic pipes used, with six bends and two gate valves, as shown. Given that the water is flowing at an average velocity of 2.5 m/s, calculate the required power input for the pump. Given: The density and viscosity of water at 60°C are p = 983.3 kg/m', u = 0.467x103 kg/m-s. Plastic pipes are smooth, and thus their roughness is very close to zero, ɛ = 0. The loss coefficient is K1 = 0.9 for a threaded 90° smooth bend and K1 = 0.2 for a fully open gate valve. Assume 70% pump efficiency. 1.2 cm Hot Water tank 40 marrow_forward2. The diameter of a pipe at the larger end is 0.5 cm and at the smaller end is 0.2 cm, the larger and smaller ends are located 7 meters and 3 meters, respectively, from a datum line. If at the larger end, the velocity is 1.2 meters per second and the pressure is 5200 kN/m², compute the pressure at the smaller and the volume flow rate in liters per minute.arrow_forwardPlease compute the Reynolds number of an oil (0.8 specific gravity, 0.8 cp viscosity) flowing in a pipe of 1- inch diameter at a velocity of 6 ft/s. Is this flow laminar or turbulent?arrow_forward
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