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 16.19PP
A bend in a tube causes the flow to turn through an angle of
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4.
A pipe carries oil of density 800 kg/m³. 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 m² and the level is 50 m
above point (1). Calculate the pressure at this point (2). Neglect friction. (374 kPa)
= constant
Q16/ A pipe diameter of 400 mm carries water at a
velocity of 25 m/s. The pressures at the points A and
B are given as 29.43 N/cm² and 22.563 N/cm²
respectively while the datum head at A and B are 28 m
and 30 m. Find the loss of head between A and B.
Z
شكر الكائر
2B
ADA=400 mm
PA 29.43 N/cm
#28 m
ZA
28
Dg= 400 mm
Pe = 22.563 N/cm
ZB = 30 m
DATUM LINE
A liquid (SG = 0.562) is being pumped from a reservoir as shown. The pressures at points 1 and 2 are -9 psi and 41 psi, respectively. The rate of flow in the pipe is 0.898 ft3/s. What will be the rating of the pump (in horsepower) if its efficiency is 90%? Neglect energy (friction) losses in the system. Use x = 5 ft., y = 9 ft. Use 1 hp = 550 lb-ft/s. Round off to two decimal places.
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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- A pump at an elevation of 300m is pumping 0.05 m³/s of water through 2.4 km of 150-mm pipe to a reservoir whose level is at an elevation of 380m. What pressure will be found in the pipe at a point where the elevation is 335m above the datum and the distance (measured along the pipe) from the pipe is 970m? Compute the capacity of the pump. Use E/D= 1.5384x10-³arrow_forward1.Find the diameter of a pipe of length 3000 m when the rate of flow of water through the pipe is 300 litres/s and the head lost due to friction is 5 m. Take the value of C = 50 in Chezy’s formula.arrow_forwardIn a tapered horizontal pipeline, the seawater's speed is 3.75 m/s and the gauge pressure is 21 kPa at the first point. Find the gauge pressure at a second point in the line if the cross-sectional area at the second point is thrice that at the first.arrow_forward
- 1a. Water flows into a tee fitting at a flow rate of 0.02 m3 /s. A pipe is connected to B. The pressure at B is 70 kPa. Find the pressure forces at B and C then determine the horizontal and vertical forces needed at the fixed support A, along with the moment required at A to hold the pipe in equilibrium. Neglect the resistance provided by the pipes at B and C, as well as the weights of the pipe and water. (view image for this problem) 1b.Glycerin (ρ=1260 kg/m3 and µ=1.5 N.s/m2 ) flows through a 250-mm diameter, horizontal smooth pipe with an average velocity of 4 m/s. Determine the pressure drop in a 20 m long segment of the pipe.arrow_forwardA Pump The oil tanks have a diameter of D = 12m. The initial depth of the oil in tank A is 20m, and in tank B the depth is 1 m. The pump delivers a constant head of 60 m. The connecting pipe has a diameter of b = 0.2m, and the head loss due to friction in the pipe is h = 8- Find the time required to fill tank B to 14m depth. (neglect minor losses)arrow_forward1. A pipe 100 mm bore diameter carries oil of density 900 kg/m3 at a rate of 4 kg/s. The pipe reduces to 60 mm bore diameter and rises 120 m in altitude. The pressure at this point is atmospheric (zero gauge). Assuming no frictional losses, determine: i. The volume/s (4.44 dm³/s) ii. The velocity at each section (0.566 m/s and 1.57 m/s) iii. The pressure at the lower end. (1.06 MPa)arrow_forward
- 1. A pipe 100 mm bore diameter carries oil of density 900 kg/m³ at a rate of 4 kg/s. The pipe reduces to 60 mm bore diameter and rises 120 m in altitude. The pressure at this point is atmospheric (zero gauge). Assuming no frictional losses, determine: i. The volume/s (4.44 dm³/s) 11. The velocity at each section (0.566 m/s and 1.57 m/s) 1. The pressure at the lower end (1.06 MPa) 2. A pipe 120 mm bore diameter carries water with a head of 3 m. The pipe descends 12 m in altitude and reduces to 80 mm bore diameter. The pressure head at this point is 13 m. The density is 1000 kg/m³. Assuming no losses, determine i. The velocity in the small pipe (7 m/s) ii. The volume flow rate. (35 dm³/s) 3. A horizontal nozzle reduces from 100 mm bore diameter at inlet to 50 mm at exit. It carries liquid of density 1000 kg/m³ at a rate of 0.05 m³/s. The pressure at the wide end is 500 kPa (gauge). Calculate the pressure at the narrow end neglecting friction (196 kPa) 4. A pipe carries oil of density 800…arrow_forwardTask 3 A liquid of a density e flows through a divergent pipe. An absolute pressure at the inlet is equal to p, and a flow velocity at the inlet is equal to v1. Determine components of the hydrodynamic reaction Rx and Ry. Bending takes place in the horizontal plane. Given: d, = 10 mm d2 = 30 mm vị = 20 m/s p1 = 2.5 bar e = 650 kg/m³ Find: Rx, Ry d2 R. d,arrow_forwardWhat will be the new pressure exerted by a fluid flowing through a horizontal pipe with an initial speed of 3 m/s and pressure of 100 kPa, if this fluid starts flowing at a speed of 15 m/s? (density of fluid =850 kg/m^3)arrow_forward
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