Applied Fluid Mechanics (7th Edition)
7th Edition
ISBN: 9780132558921
Author: Robert L. Mott, Joseph A. Untener
Publisher: PEARSON
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Chapter 16, Problem 16.8PP
In a plant where hemispherical cup-shaped parts are made, an automatic washer is being designed to clean the parts prior to shipment. One scheme being evaluated uses a stream of water at
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Chapter 16 Solutions
Applied Fluid Mechanics (7th Edition)
Ch. 16 - Calculate the force required to hold a flat plate...Ch. 16 - What must be the velocity of flow of water from a...Ch. 16 - Calculate the force exerted on a stationary curved...Ch. 16 - A highway sign is being designed to withstand...Ch. 16 - Compute the forces in the vertical and horizontal...Ch. 16 - Figure 16.13 O shows a free stream of water at 180...Ch. 16 - Compute the horizontal and vertical forces exerted...Ch. 16 - In a plant where hemispherical cup-shaped parts...Ch. 16 - A stream of non-flammable oil (sg 5 0.90) is...Ch. 16 - A 2 -in-diameter stream of water having a velocity...
Ch. 16 - Figure 16.17 O represents a type of flowmeter in...Ch. 16 - Water is piped vertically from below a boat and...Ch. 16 - A 2 -in nozzle is attached to a hose with an...Ch. 16 - Seawater (sg 5 1.03) enters a heat exchanger...Ch. 16 - A reducer connects a standard 6 -in Schedule...Ch. 16 - Calculate the force on a elbow attached to an in...Ch. 16 - Calculate the force required to hold a 90 elbow in...Ch. 16 - Calculate the force required to hold a 180 close...Ch. 16 - A bend in a tube causes the flow to turn through...Ch. 16 - A vehicle is to be propelled by a jet of water...Ch. 16 - A part of an inspection system in a packaging...Ch. 16 - Shown in Fig. 16.20 is a small decorative wheel...Ch. 16 - For the wheel described in Problem 16.22. compute...Ch. 16 - A set of louvers deflects a stream of warm air...Ch. 16 - Prob. 16.25PPCh. 16 - Prob. 16.26PPCh. 16 - Figure 16.22 shows a device for clearing debris...Ch. 16 - Prob. 16.28PPCh. 16 - Figure 16.23 is a sketch of a turbine in which the...Ch. 16 - Repeat Problem 16.29 with the blade rotating as a...Ch. 16 - Repeat Problem 16.29, except with the blade...
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- Q.1). The figure below shows a smooth curved vane attached to a rigid foundation. The jet of water, with 49 mm diameter, strike the vane with a velocity of 25m/s. calculate the vertical and horizontal components of the force exerted on the vane and indicate in which direction these components act. 45⁰ 25°arrow_forwardProblem 14.2 A jet of water (r = 1000 kg/m³) is deflected by a vane mounted on a cart. The water jet has a constant cross-sectional area, A = 50 cm², which is projected off the vane at an angle q = 30° with respect to the horizontal. The pressure everywhere within the jet is atmospheric. The incoming jet velocity (with respect to the ground) is Vjet = 4.5 m/s. The cart has mass 50kg. Determine: a. the forces, Fx and Fy required to hold the cart stationary Vjet Vcart Fy Fx b. the horizontal force component, Fx, if the cart moves to the right at the constant velocity, Vcart = 3 m/s c. the horizontal acceleration of the cart at the instant when the cart moves with velocity Vcart = 2.5 m/s if no horizontal forces are applied Ans: a) 10 Narrow_forwardA jet of water strikes a stationary curved plate at one end at an angle of 30°. The jet of 75 mm diameter has a velocity of 30 m/s. The jet is deflected at an angle of 160° with respect to the horizontal. Determine the magnitude and direction of the force exerted by the water on the plate. Assume an ideal fluid. (Express Area in m2; Velocity in m/s; Discharge in m3/s and Force in N) The volumetric flow rate is:arrow_forwardWater at a rate of 30 kg/s is flowing in the elbow shown below. If the mass of the elbow and water in it is 50 kg, D = 13 cm, d = 6 cm, e = 45°, B = 1.03. What is the vertical force needed to hold it in position? %3D %3D Flow direction 581 N 759 N 625 N 874 N 811 N 679 N O 723 Narrow_forwardA pump with an impeller diameter of 300 mm running at a speed of 2950 rev/min delivering 450 L/min of water at a head of 350 kPa is going to be replaced by a geometrically similar spare pump running at a speed of 1450 rev/min delivering the same flow rate and head. Determine the impeller size of the spare pump and the percentage increase (decrease) of power required for the spare pump. OL. 380.1 mm; a decrease of 61.33% OI., 380.1 mm; an increase of 38.77% I. 147.5 mm; an increase of 3.4% IV. 210.3 mm; a decrease of 83.1%arrow_forwardSituation 7: A schematic of a garden fountain is given in the figure. A pump located beneath a water reservoir discharges a single jet vertically upward to a height of 6 ft above the reservoir surface. Under ideal conditions, the volume flow of liquid is 250 gpm. (1 ft3 = 7.48 gal) Determine the power deliverd added by the pumpin order to raise the water to 6 feet. Neglect friction. 6 ft Assuming that the jet remains circular at the rate of water flowing given, What is the diameter of the jet at one-third the height of the fountain? 2 ft Compute the pressure in the 6" diameter suction pipe 18 in. Ref. Datum Pumparrow_forward2.14 A 4-in.-dia. stream of water strikes the conical deflector as shown. Determine the flow rate from the stationary jet if a 10-lb force is measured on (a) a stationary deflector and (b) a deflector moving to the right at 20 fps.arrow_forwardThe plunger diameter of a single-acting reciprocating pump is 115 mm and the stroke is 230 mm. The suction pipe is 90 mm in diameter and 4.2 m long. If cavitation takes place at the suction head of 4 m, the barometer stands at 10.3 m of water, and the water level in the sump is 3 m below the pump cylinder axis. 3.1 Find the maximum allowable speed to operate the pump 3.2 What power is expected in overcoming friction at this speed, takef = 0.01arrow_forwardTwo geometrically similar pumps are running at the same speed of 1000 rpms One pump has impoller diameter of 300 mm and lift water at the rate of 0.02 m3 against a head of 15 m Determine the head and impeller diameter of the other pump to deliver half the discharge.arrow_forwardQuestion 2 A brand of toothpaste is made using a mixture of white and red paste. During the manufacturing process, both pastes are pumped through a pipe, with the red paste lying in the centre of the pipe, as shown in Figure Q2. The pipe has an internal radius, R₂, and the segment of red paste has a radius R₁. The flow is found to follow the Poiseuille equation, i.e. u(r) = 1 dp 4µ dx (R₂-²) dp Where u is the viscosity of the paste and is the pressure gradient. The total flow of toothpaste through the pipe is Qtot, and the flowrate of the red paste is Qred- dx The toothpaste has a density of p = 1200 kg/m³, and a viscosity of 0.03 Pa.s. The pipe has a radius R₂ = 5 cm and a length L = 2 m. a) Find an expression for the flowrate of the red toothpaste. You answer should be in terms of µ, R₁, R₂, d) dxarrow_forwardQuestion 2 A brand of toothpaste is made using a mixture of white and red paste. During the manufacturing process, both pastes are pumped through a pipe, with the red paste lying in the centre of the pipe, as shown in Figure Q2. The pipe has an internal radius, R₂, and the segment of red paste has a radius R₁. The flow is found to follow the Poiseuille equation, i.e. u(r) = 1 dp 4µ dx (R2² - r²) dp Where u is the viscosity of the paste and is the pressure gradient. The total flow of toothpaste through the pipe is Qtot, and the flowrate of the red paste is Qred. dx The toothpaste has a density of p = 1200 kg/m³, and a viscosity of 0.03 Pa.s. The pipe has a radius R₂ = 5 cm and a length L 2 m. =arrow_forwardQuestion 2 A brand of toothpaste is made using a mixture of white and red paste. During the manufacturing process, both pastes are pumped through a pipe, with the red paste lying in the centre of the pipe, as shown in Figure Q2. The pipe has an internal radius, R₂, and the segment of red paste has a radius R₁. The flow is found to follow the Poiseuille equation, i.e. u(r) 1 dp - (R² — r²) 4μ dx dp Where is the pressure gradient. The total flow of dx u is the viscosity of the paste and toothpaste through the pipe is Qtot, and the flowrate of the red paste is red- The toothpaste has a density of p = 1200 kg/m³, and a viscosity of 0.03 Pa.s. The pipe has a radius R₂ 5 cm and a length L = 2 m. = a) Find an expression for the flowrate of the red toothpaste. You answer should be in terms of µ, R₁, R₂, dº) R₂₁ b) The flow in the pipe becomes turbulent when the Reynolds number reaches 2000 (where Re is calculated using the mean velocity across the pipe). What is the maximum pressure drop along…arrow_forwardarrow_back_iosSEE MORE QUESTIONSarrow_forward_ios
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