Fox and McDonald's Introduction to Fluid Mechanics
9th Edition
ISBN: 9781118912652
Author: Philip J. Pritchard, John W. Mitchell
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 6, Problem 67P
Water is being pumped from the lower reservoir through a nozzle into the upper reservoir. If the vacuum gauge at A reads 2.4 psi vacuum,
- (a) find the flow velocity through the nozzle,
- (b) find the horsepower the pump must add to the water,
- (c) draw the energy line and the hydraulic grade line.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Note: Unless otherwise stated, take the density of water to be p = 1000 kg/m³ and atmospheric pressure, Patm=101.3 kPa.
Water from a reservoir passes through a pump to an open air. A static manometer is attached to the
pipe. The head loss along pipe A and pipe B is 1.2 m and 3.8 m respectively.
i.
Find the power consumed by the pump if the pressure gauge reads 750 kPa.
Find the pressure just before the pump suction point.
ii.
Assume that the pump is 100% efficient.
Pipe B diameter: 40 cm
Nozzle diameter: 7.6 cm
Mercury SG 13.6
2.5 cm
Pump
2.4 m
Static pitot manometer
Pressure gauge
Pipe A diameter: 30 cm
Air
Water
Choose the correct answer of the following questions
2. A siphon used to empty a tank consists essentially of a pipe with its summit 0.5 m above the water surface of the tank and its outlet at 2.0 m below the summit. Neglecting friction and other losses. the velocity in the siphon is:
a. 4.4 m/sec b. 5.4 m/sec C.3.1 m/sec
d. 3.8 m/sec
3. A 20 cm diameter open cylindrical container contains Kerosene (relative density = 0.80) to a height of 20 cm. It is rotated about a vertical axis coinciding with the axis of the cylinder. If the
bottom of the cylinder at the axis is just exposed, the speed of rotation is:
a. 94.6 rpm
br267.5 rpm
c. 133.8 rpm
d. 535.0 rpm
If the velocity of water is 8m/s and the pressure is 140 kPa on the discharge side of a pump,
What will be the head of the pump if the velocity is 4 m/s and the pressure is 90 kPa on the suction side of the pump?
How much power is required to drive it if the diameter of suction side is 600 mm?
If the pump is rated at 120 hp, what is the efficiency of the pump neglecting energy losses in the system?
Chapter 6 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
Ch. 6 - An incompressible frictionless flow field is given...Ch. 6 - A velocity field in a fluid with density of 1000...Ch. 6 - The x component of velocity in an incompressible...Ch. 6 - Consider the flow field with the velocity given by...Ch. 6 - Consider the flow field with the velocity given by...Ch. 6 - The velocity field for a plane source located...Ch. 6 - In a two-dimensional frictionless, incompressible...Ch. 6 - Consider a two-dimensional incompressible flow...Ch. 6 - An incompressible liquid with a density of 900...Ch. 6 - Consider a flow of water in pipe. What is the...
Ch. 6 - The velocity field for a plane vortex sink is...Ch. 6 - An incompressible liquid with negligible viscosity...Ch. 6 - Consider water flowing in a circular section of a...Ch. 6 - Consider a tornado as air moving in a circular...Ch. 6 - A nozzle for an incompressible, inviscid fluid of...Ch. 6 - A diffuser for an incompressible, inviscid fluid...Ch. 6 - A liquid layer separates two plane surfaces as...Ch. 6 - Consider Problem 6.15 with the nozzle directed...Ch. 6 - Consider Problem 6.16 with the diffuser directed...Ch. 6 - A rectangular computer chip floats on a thin layer...Ch. 6 - Heavy weights can be moved with relative ease on...Ch. 6 - The y component of velocity in a two-dimensional...Ch. 6 - The velocity field for a plane doublet is given in...Ch. 6 - Tomodel the velocity distribution in the curved...Ch. 6 - Repeat Example 6.1, but with the somewhat more...Ch. 6 - Using the analyses of Example 6.1 and Problem...Ch. 6 - Water flows at a speed of 25 ft/s. Calculate the...Ch. 6 - Plot the speed of air versus the dynamic pressure...Ch. 6 - Water flows in a pipeline. At a point in the line...Ch. 6 - In a pipe 0.3 m in diameter, 0.3 m3/s of water are...Ch. 6 - A jet of air from a nozzle is blown at right...Ch. 6 - The inlet contraction and test section of a...Ch. 6 - Maintenance work on high-pressure hydraulic...Ch. 6 - An open-circuit wind tunnel draws in air from the...Ch. 6 - Water is flowing. Calculate H(m) and p(kPa). P6.36Ch. 6 - If each gauge shows the same reading for a flow...Ch. 6 - Derive a relation between A1 and A2 so that for a...Ch. 6 - Water flows steadily up the vertical 1...Ch. 6 - Your car runs out of gas unexpectedly and you...Ch. 6 - A tank at a pressure of 50 kPa gage gets a pinhole...Ch. 6 - The water flow rate through the siphon is 5 L/s,...Ch. 6 - Water flows from a very large tank through a 5 cm...Ch. 6 - Consider frictionless, incompressible flow of air...Ch. 6 - A closed tank contains water with air above it....Ch. 6 - Water jets upward through a 3-in.-diameter nozzle...Ch. 6 - Calculate the rate of flow through this pipeline...Ch. 6 - A mercury barometer is carried in a car on a day...Ch. 6 - A racing car travels at 235 mph along a...Ch. 6 - The velocity field for a plane source at a...Ch. 6 - A smoothly contoured nozzle, with outlet diameter...Ch. 6 - Water flows steadily through a 3.25-in.-diameter...Ch. 6 - A flow nozzle is a device for measuring the flow...Ch. 6 - The head of water on a 50 mm diameter smooth...Ch. 6 - Water flows from one reservoir in a 200-mm pipe,...Ch. 6 - Barometric pressure is 14.0 psia. What is the...Ch. 6 - A spray system is shown in the diagram. Water is...Ch. 6 - Water flows out of a kitchen faucet of...Ch. 6 - A horizontal axisymmetric jet of air with...Ch. 6 - The water level in a large tank is maintained at...Ch. 6 - Many recreation facilities use inflatable bubble...Ch. 6 - Water flows at low speed through a circular tube...Ch. 6 - Describe the pressure distribution on the exterior...Ch. 6 - An aspirator provides suction by using a stream of...Ch. 6 - Carefully sketch the energy grade lines (EGL) and...Ch. 6 - Carefully sketch the energy grade lines (EGL) and...Ch. 6 - Water is being pumped from the lower reservoir...Ch. 6 - The turbine extracts power from the water flowing...Ch. 6 - Consider a two-dimensional fluid flow: u = ax + by...Ch. 6 - The velocity field for a two-dimensional flow is...Ch. 6 - A flow field is characterized by the stream...Ch. 6 - The flow field for a plane source at a distance h...Ch. 6 - The stream function of a flow field is = Ax2y ...Ch. 6 - A flow field is characterized by the stream...Ch. 6 - A flow field is characterized by the stream...Ch. 6 - The stream function of a flow field is = Ax3 ...Ch. 6 - A flow field is represented by the stream function...Ch. 6 - Consider the flow field represented by the...Ch. 6 - Show by expanding and collecting real and...Ch. 6 - Consider the flow field represented by the...Ch. 6 - An incompressible flow field is characterized by...Ch. 6 - Consider an air flow over a flat wall with an...Ch. 6 - A source with a strength of q = 3 m2/s and a sink...Ch. 6 - The velocity distribution in a two-dimensional,...Ch. 6 - Consider the flow past a circular cylinder, of...Ch. 6 - The flow in a corner with an angle can be...Ch. 6 - Consider the two-dimensional flow against a flat...Ch. 6 - A source and a sink with strengths of equal...Ch. 6 - A flow field is formed by combining a uniform flow...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Determine the minimum initial velocity v0 and the corresponding angle 0 at which the ball must be kicked in ord...
Engineering Mechanics: Dynamics (14th Edition)
24. If we increase the temperature in a reactor by 90 degrees Fahrenheit [°F], how many degrees Celsius [°C] wi...
Thinking Like an Engineer: An Active Learning Approach (4th Edition)
Determine the reactions at the supports A and B, then draw the shear and moment diagrams. El is constant.
Mechanics of Materials (10th Edition)
1.1 What is the difference between an atom and a molecule? A molecule and a crystal?
Manufacturing Engineering & Technology
F310. Determine the tension developed in cables AB, AC, and AD.
Engineering Mechanics: Statics
8. If a liquid evaporates at a rate of 50 kilograms per minute [kg/min], what is this evaporation rate in units...
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, mechanical-engineering and related others by exploring similar questions and additional content below.Similar questions
- In the system given below, the water taken from the A chamber is transmitted to the D chamber with the help of the pump at the C point. The power of the pump at the C point, the local loss coefficient due to the valve at the B point and other data are given in the table. How many meters (m) is the elevation difference between these two reservoirs? Hopper-Pipe connections are sharp (90⁰ junction). Note: The Colebrook-White equation will be used in the solution. Kinematic viscosity value will be taken as 1.13x10-6 m2 / s. please fast helparrow_forwardDraw the right diagram for the problem. Show complete solution. Water at 60 F from a lake through 500 ft if 4in ID cast iron pipe at a water turbine 250 ft below the surface of the lake. After flowing from the turbine, the water is discharged into the atmosphere through a horizontal 50 ft section of the same pipe. The turbine power output is 10hp when the water in the discharged pipe is flowing at 5 ft/s. a. What is the turbine efficiency defined as the actual power output of the turbine divided by the power output that would be withdrawn if there are no friction within the turbine? b. If the turbine were by passed, what would be the flow rate of water through the 500 ft of 4in pipe?arrow_forwardA centrifugal water pump has a discharge flow rate of 25 gpm. A pressure gauge at the pump suction flange indicates a pressure of -10 psig, while a pressure gauge at the pump discharge flange indicates a pressure of 30 psig. The suction and discharge flanges has the same internal diameter. Also, the elevation difference between the suction and discharge flanges is about 13 inches. Estimate the total dynamic head of the pump in feet. Round your answer to 2 decimal places.arrow_forward
- A pump is installed in a pipe system, where at the suction side 1.0 m below the pump, an open manometer reads a vacuum of 20 cm of mercury. The pipe is 10 cm in diameter and the flow is 35 L/s of water. Find the total energy at the location of the manometer, relative to a datum, through the pump. A. 12.74 m B. 2.56 C. -2.72 m D. -4.67 marrow_forwardThe reservoir tank shown contains fresh water air pressurized to 200 kPa. There is a loss of 3.3 N*m/N due to friction in the pipes. Point 1 is located at the surface of the water and point 2 is in the free stream of the exit spray. The Distance from the water surface to the free stream is 3 meters. The flowrate for the system is .05 m^3/s (Work on paper required) 1. How much energy is provided to the motor by the flowing water? 2. Assuming the motor has an efficiency rating of 83%, how much power is output? Ar Pressure o water DN 50sch 40 motor r coo ON 80 sch 40arrow_forwardA pump is installed in a pipe system, where at the suction side 1.0 m below the pump, an open manometer reads a vacuum of 20 cm of mercury. The pipe is 10 cm in diameter and the flow is 35 L/s of water. Find the total energy at the location of the manometer, relative to a datum, through the pump. A. 2.56 B. 12.74 m C. -2.72 m D. -4.67 m With F.B.Darrow_forward
- The diameter of the discharge pipe is 7in and that of intake pipe is 9in. The pressure gage at discharge reads 32psi, vacuum gage at the intake reads 12in Hg. If the discharge flow rate is 4ft3/s of water and the brake horsepower is 49, find the efficiency.arrow_forwardA small, high pressure water jet can be used for cutting various materials. A jet with a speed of 700 m/s and a diameter of 0.10 mm is required for precision cutting. Determine (a) the pressure within the nozzle (KPa gauge) and (b) the force (N) needed to hold the nozzle to the pipe for the nozzle shown below. L = 4.54 mm d = 1.50 mm L = 1.57 mm d = 0.10 mmarrow_forwardThe average velocities of water flowing steadily through the nozzle are indicated. If the nozzle is glued onto the end of the hose, outline the control volume to be the entire nozzle and the water inside it. Also, select another control volume to be just the water inside the nozzle. (Eigure 1) 8 m/s 2.5 m/s 1 For the control volume containing entire nozzle and the water inside it indicate the open control surfaces. Drag the appropriate labels to their respective targets. Note: not all targets will be used. Reset Help Outlet control surface Inlet control surface 2 For the control volume containing just the water inside the nozzle indicate the open control surfaces. Drag the appropriate labels to their respective targets. Note: not all targets willI be used. Reset Help Outlet control surface Inlet control surface 3 Identify whether or not the local and convective changes occur. Assume water to be incompressible. O For both cases the local changes do not occur, while the convective…arrow_forward
- Water 2. In this system, d = 6 in., D = 6 ft, and =z2 = 12 ft. The water in the system is 13 cfs. machine a pump or a turbine? pressures at points A and B? losses. Pump 1. The discharge in the siphon is 2.80 cfs, D = 10 in., L1 = 3 ft, and L2 = 3 ft. Determine the head loss between the reservoir surface and point C. Determine the pressure at point B if three-quarters of the head loss (as found above) occurs between the reservoir surface and point B. 1 m REVIEW Home Work (1) Energy Equation Water T = 10ºC REPPER Water Same elevation Machine Elevation = 40 m -Elevation = 20 m Elevation 10 m 300 m + -300 m- 4. Assume that the head loss in the pipe is given by hL = 0.014(L/D)(V2/2g), where L is the length of pipe and AZ₂ AFL B Elevation 100 m L = 100 m D = 60 cm Water T= 10°C 3. A water discharge of 10 m3/s is to flow through this horizontal pipe, which is 1 m in diameter. If the head loss is given as 7V2/2g (V is velocity in the pipe), how much power will have to be supplied to the flow…arrow_forwardA pipe has an initial radius of r1, which then changes to a radius of r2. The velocity of the water in the initial part of the pipe is v1. The segment of the pipe with the smaller radius is also 0.5 m higher than the initial pipe segment. What is the pressure difference between the two parts of the pipe? let r1=10cm let r2=6cm let v1=5m/s b) What is the volume flow rate in the pipe?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.1. Find the maximum allowable speed to operate the pumparrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elements Of ElectromagneticsMechanical EngineeringISBN:9780190698614Author:Sadiku, Matthew N. O.Publisher:Oxford University Press
Mechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSON
Thermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEY
Mechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage Learning
Engineering Mechanics: StaticsMechanical EngineeringISBN:9781118807330Author:James L. Meriam, L. G. Kraige, J. N. BoltonPublisher:WILEY
Elements Of Electromagnetics
Mechanical Engineering
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Oxford University Press
Mechanics of Materials (10th Edition)
Mechanical Engineering
ISBN:9780134319650
Author:Russell C. Hibbeler
Publisher:PEARSON
Thermodynamics: An Engineering Approach
Mechanical Engineering
ISBN:9781259822674
Author:Yunus A. Cengel Dr., Michael A. Boles
Publisher:McGraw-Hill Education
Control Systems Engineering
Mechanical Engineering
ISBN:9781118170519
Author:Norman S. Nise
Publisher:WILEY
Mechanics of Materials (MindTap Course List)
Mechanical Engineering
ISBN:9781337093347
Author:Barry J. Goodno, James M. Gere
Publisher:Cengage Learning
Engineering Mechanics: Statics
Mechanical Engineering
ISBN:9781118807330
Author:James L. Meriam, L. G. Kraige, J. N. Bolton
Publisher:WILEY
Intro to Compressible Flows — Lesson 1; Author: Ansys Learning;https://www.youtube.com/watch?v=OgR6j8TzA5Y;License: Standard Youtube License