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
Concept explainers
Textbook Question
Chapter 12, Problem 56P
In a given duct flow M = 2.0; the velocity undergoes a 20 percent decrease. What percent change in area was needed to accomplish this? What would be the answer if M = 0.5?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A turbine is installed as shown in the figure. The gage at point 1 is 80 kPa while at point 2 is -46 kPa. If the rate of flow is 0.48 cu.m. per second, compute the output horsepower if the efficiency of the turbine is at 82%. Pls answer as soon as possible
Read
14
83%
A pipe with a cross sectional area of 5x10 m is delivering oil at a rate of Ix10 m/s at a
pressure of 700 kPa. This pipe connects by a gradually expanding pipe to a main of cross
sectional area of 3x10 m which runs 2 m above it. Calculate the pressure in the main,
neglecting losses to friction. The oil has a density of 890 kg/m.
(1)
Answer each of the following for an electropneumatic circuit that operates a single acting
cylinder with direct control.
(i)
Sketch the pneumatic and clectrical circuit that uses the logic OR operation to extend
the cylinder.
(ii)
Sketch the pneumatic and cleetrical circuit that uses the logic AND operation to extend
the cylinder.
(2.5
ks)
Air at a pressure of 6 bar gauge pressure has a volume of 3m'. The volume of the air is
allowed to increase to 5m' at constant temperature. What is the air gauge pressure at the new
volume? The atmospheric pressure is 101.85kN/m.
(h)
For a vertically mounted hydraulic actuator with an overrunning load, what is…
A garden hose is connected to raise a narrower hose wherein the
diameter of the bigger is twice the diameter of the narrower hose. The
fluid flowing is a fresh water having an entrance velocity of 1.2 m/s and
a pressure of 143 kPa find the the pressure in KPa and velocity in m/s at
the exit point. Note; h or Ay = 20.0 cm (Express or round off your
answer to one decimal place.)
20.0 cm
Answer:
Chapter 12 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
Ch. 12 - Air is expanded in a steady flow process through a...Ch. 12 - Five kilograms of air is cooled in a closed tank...Ch. 12 - Air is contained in a piston-cylinder device. The...Ch. 12 - Calculate the power delivered by the turbine per...Ch. 12 - If hydrogen flows as a perfect gas without...Ch. 12 - A 1-m3 tank contains air at 0.1 MPa absolute and...Ch. 12 - Air enters a turbine in steady flow at 0.5 kg/s...Ch. 12 - Natural gas, with the thermodynamic properties of...Ch. 12 - Carbon dioxide flows at a speed of 10 m/s in a...Ch. 12 - In an isothermal process, 0.1 cubic feet of...
Ch. 12 - Calculate the speed of sound at 20C for (a)...Ch. 12 - An airplane flies at 550 km/hr at 1500 m altitude...Ch. 12 - Actual performance characteristics of the Lockheed...Ch. 12 - For a speed of sound in steel of 4300 m/s,...Ch. 12 - Determine and plot the Mach number of an...Ch. 12 - Investigate the effect of altitude on Mach number...Ch. 12 - The grandstand at the Kennedy Space Center is...Ch. 12 - Use data for specific volume to calculate and plot...Ch. 12 - An object traveling in atmospheric air emits two...Ch. 12 - An object traveling in atmospheric air emits two...Ch. 12 - While at the seashore, you observe an airplane...Ch. 12 - The temperature varies linearly from sea level to...Ch. 12 - Prob. 23PCh. 12 - A photograph of a bullet shows a Mach angle of 32....Ch. 12 - An F-4 aircraft makes a high-speed pass over an...Ch. 12 - All aircraft passes overhead at 3 km altitude. The...Ch. 12 - A supersonic aircraft flies at 3 km altitude at a...Ch. 12 - For the conditions of Problem 12.27, find the...Ch. 12 - The Concorde supersonic transport cruised at M =...Ch. 12 - Plot the percentage discrepancy between the...Ch. 12 - Compute the air density in the undisturbed air and...Ch. 12 - Carbon dioxide flows in a duct at a velocity of 90...Ch. 12 - If nitrogen at 15C is flowing and the stagnation...Ch. 12 - An aircraft cruises at M = 0.65 at 10 km altitude...Ch. 12 - High-speed aircraft use air data computers to...Ch. 12 - A supersonic wind tunnel test section is designed...Ch. 12 - Oxygen flows in a passage at a pressure of 25...Ch. 12 - What is the pressure on the nose of a bullet...Ch. 12 - Prob. 39PCh. 12 - Air flows in an insulated duct. At point the...Ch. 12 - Consider steady, adiabatic flow of air through a...Ch. 12 - Air passes through a normal shock in a supersonic...Ch. 12 - A Boeing 747 cruises at M = 0:87 at an altitude of...Ch. 12 - Space debris impact is a real concern for...Ch. 12 - A CO2 cartridge is used to propel a toy rocket....Ch. 12 - Nitrogen flows from a large tank, through a...Ch. 12 - Air flows from the atmosphere into an evacuated...Ch. 12 - Oxygen discharges from a tank through a convergent...Ch. 12 - The hot gas stream at the turbine inlet of a JT9-D...Ch. 12 - Carbon dioxide discharges from a tank through a...Ch. 12 - Air at 100F and 100 psia in a large tank flows...Ch. 12 - Calculate the required diameter of a convergent...Ch. 12 - Steam flows steadily and isentropically through a...Ch. 12 - Nitrogen flows through a diverging section of duct...Ch. 12 - At a section in a passage, the pressure is 30...Ch. 12 - In a given duct flow M = 2.0; the velocity...Ch. 12 - Air flows isentropically through a converging...Ch. 12 - Five pounds of air per second discharge from a...Ch. 12 - Air flows isentropically through a...Ch. 12 - Air, at an absolute pressure of 60.0 kPa and 27C,...Ch. 12 - Carbon dioxide flows from a tank through a...Ch. 12 - A convergent-divergent nozzle of 50-mm tip...Ch. 12 - Air flows adiabatically through a duct. At the...Ch. 12 - Air flows isentropically through a converging...Ch. 12 - Air flows isentropically through a converging...Ch. 12 - Atmospheric air at 98.5 kPa and 20C is drawn into...Ch. 12 - The exit section of a convergent-divergent nozzle...Ch. 12 - Air flowing isentropically through a converging...Ch. 12 - Air flows from a large tank at p = 650 kPa...Ch. 12 - A converging nozzle is connected to a large tank...Ch. 12 - Air at 0C is contained in a large tank on the...Ch. 12 - A large tank initially is evacuated to 10 kPa...Ch. 12 - Air flows isentropically through a converging...Ch. 12 - Air enters a converging-diverging nozzle at 2 MPa...Ch. 12 - Prob. 75PCh. 12 - A jet transport aircraft, with pressurized cabin,...Ch. 12 - A converging-diverging nozzle, with a throat area...Ch. 12 - Air, at a stagnation pressure of 7.20 MPa absolute...Ch. 12 - A small rocket motor, fueled with hydrogen and...Ch. 12 - Testing of a demolition explosion is to be...Ch. 12 - A total-pressure probe is placed in a supersonic...Ch. 12 - Air flows steadily through a long, insulated...Ch. 12 - Air discharges through a convergent-divergent...Ch. 12 - A normal shock wave exists in an airflow. The...Ch. 12 - Air approaches a normal shock at V1 = 900 m/s, p1...Ch. 12 - Air approaches a normal shock at M1 = 2.5, with...Ch. 12 - Air undergoes a normal shock. Upstream, T1 = 35C,...Ch. 12 - If, through a normal shock wave in air, the...Ch. 12 - The stagnation temperature in an airflow is 149C...Ch. 12 - A supersonic aircraft cruises at M = 2.2 at 12 km...Ch. 12 - The Concorde supersonic transport flew at M = 2.2...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
A heat pump uses a 100,000-gallon swimming pooi as a heat source in the winter. When the heat pump is running a...
Heating Ventilating and Air Conditioning: Analysis and Design
Three rigid bodies, 2,3, and 4, are connected by four springs as shown in the figure. A horizontal force of 1,0...
Introduction To Finite Element Analysis And Design
Determine the horizontal and vertical components of reaction at the pm at A and the reaction of the roller at B...
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
What are some of the lower-temperature methods of joining?
Degarmo's Materials And Processes In Manufacturing
Determine and plot the moment M required to rotate arm OA over the range 0180. Find the maximum value of M and ...
Engineering Mechanics: Statics
23. We have made many measurements of coffee cooling in a ceramic coffee cup. We realize that as the coffee coo...
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
- Problems: 1. There are 252,000m³/hr. of exhaust gas (MW=30) from the steam generator flowing through a chimney with a velocity of 12m/s. The pressure and temperature of the gas are latmosphere and 200°C. Calculate the appropriate diameter of the chimney to handle these gases. Express the answer in mm.arrow_forwardc) A nozzle is fastened to the end of a U-tube with dimensions as shown in Figure Q2c. The nozzle exhausts into atmospheric pressure at 100 kPa; neglect friction and compute the force exerted on the U-tube by the water. If the force required to hold the nozzle is 850 N, determine the inlet pressure. 5 CRN 31896 V = 1 m/s 5 cm diameter 1 cm diameter Figure Q2carrow_forwardWhat is the velocity of the pipe center (m/s)? Given that h3%3D88.3 cm h3 h2 =7 cm h=3 cm Water .arrow_forward
- At a flow rate of 20 LPM, What will happen if the 30 seconds is 2.943 kPa, the 60 seconds drops to 2.894 kPa, and the 90 seconds is the same as 30 seconds (2.943 kPa)? HYDROSTATIC PRESSUREarrow_forwardSelect duct sizes for the rectangular duct system shown in the Figure, using the equal friction method. The total pressure available for the duct system is 0.12 in. wg (30 Pa), and the loss in total pressure for each diffuser at the specified flow rate is 0.02 in. wg (5 Pa). Assume the velocity in mean duct 600 fpm. 150 che 25 Boo ae und torectang a5On e S. 150 ct 0.095 mi 071 15marrow_forwardFlow takes place between three reservoirs, as shown in Figure 1. The volume flow rate out of reservoirs A and B is 0,15 m³/s and 0,25 m³/s respectively. If the coefficient of friction for three pipes is 0,008, determine the relative elevations of the free surfaces. Neglect all losses other than friction. May you kindly resend the answers in a different format as they appear blank??arrow_forward
- 1) 2) Determine the Reynolds number in the pipe system and the significance of this Information? 3) Using Bernoulli’s equation, find the water pressure at point C? 4) Determine the head losses accumulated by the fluid when flowing in the pipeline? 5) Calculate the energy that the fluid will lose after passing through the turbine by applying theenergy equation? 6)If the used turbine converts only two-thirds of the energy that the fluid will lose after passing through the turbine, what is the efficiency of this turbine? 7) Identify the most common water turbines and the limitations that exist within these differenttypes? 8) Although hydraulic turbines considered one of the most efficient power plants, theirecological impact is a big concern. Discuss this issue and suggest remedies for such problems by writing 100 words at least?arrow_forwardQ1) Figure Ql shows piping system with pump to drive the oil upward from A (P=PA kPa) to B (P=180 kPa) at a mass flow rate of 3 kg/s. Determine type of flow and calculate required pump power. Given data: oil density and viscosity are 891 kg/m³ and 0.29 N.s/m² respectively. Use Hagen Poiseulli equation for loss: he128µQL/(xpgD“) and Power=Qpghr; Triangle geometry: a²=b²+c² Dripe = 3 mm 15 m Pump 20 m Figure O1arrow_forwardQ/ Size the duct system as shown in the figure below using velocity method then select Suitable diffuser for each room according to the following criteria, throw doesn't exceed 10 meter and the noise level less than 15 NC. Then calculate the fan power by KW. Assume the velocity to be 8 m/s and 4 m/s for the main and branches. Given: • R/W = 1.6 • Fan efficiency 60% • Height of the duct 300 mm • Aspect ratio doesn't exceed 6 4m Ap=40 pa Ap=30 pa Ap=50 pa A Return pressure drop Ap-50 pa 10 m cooling coil heating coil filler D2-400 L/S 4m B 4m D1=400 L/S 8m D4= 600 L/S D5-400 L/S 4m 4 m 8m m D3-600 L/Sarrow_forward
- The lengths of two pipes with the same friction factor, "f," are parallel. What must the flow ratio be if the first pipe has twice the diameter of the second?arrow_forwardWater is flowing at the rate of 1.676 m/s in a 3.068 inches’ diameter horizontal pipe at apressure p1 of 68.9 kPa. It then passes to a pipe having an inside diameter of 2.067 inch. Thedensity of the water is 998 kg/m3.a) Calculate the new pressure p2 in the 2.067inch pipe. Assume no friction losses.b) If the piping is vertical and the flow is upward, calculate the new pressure p2. The pressure tap for p2 is 0.457 m above the tap for p1.c) Compare and discuss your answers in 2 (a) and 2(b).arrow_forwardQuestion 3) As seen in the figure, the vacuum pump provides air flow in an insulated pipe with a cross section of 49 mm². The air moves along a straight line in a room with a pressure of 100,9 kPa and a temperature of 29 °C. If the pressure in section 1 is 98,9 kPa and the temperature in section 2 is 19 °C; This is Fanno flow. (d=7,9mm) i) Calculate mass flow rate, ii) Calculate at section 1, flow velocity Uj, density, Mach number Maj, Re, f values ii) Calculate at section 2, find the stopping pressure and temperature, Mach number Ma2, U2 velocity, density, mass flow rate iv) Calculate friction coefficient and force on the channel walls between section 1 and 2. Solve the problem by making the necessary assumptions. v) Calculate L1-2 pipe length C, = 0.079 Re-0.25 and f = 4C, %3D expressions can also be used. Solve the problem by making the necessary assumptions and drawing the schematic figure.arrow_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 PressMechanics of Materials (10th Edition)Mechanical EngineeringISBN:9780134319650Author:Russell C. HibbelerPublisher:PEARSONThermodynamics: An Engineering ApproachMechanical EngineeringISBN:9781259822674Author:Yunus A. Cengel Dr., Michael A. BolesPublisher:McGraw-Hill Education
- Control Systems EngineeringMechanical EngineeringISBN:9781118170519Author:Norman S. NisePublisher:WILEYMechanics of Materials (MindTap Course List)Mechanical EngineeringISBN:9781337093347Author:Barry J. Goodno, James M. GerePublisher:Cengage LearningEngineering 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
8.01x - Lect 27 - Fluid Mechanics, Hydrostatics, Pascal's Principle, Atmosph. Pressure; Author: Lectures by Walter Lewin. They will make you ♥ Physics.;https://www.youtube.com/watch?v=O_HQklhIlwQ;License: Standard YouTube License, CC-BY
Dynamics of Fluid Flow - Introduction; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=djx9jlkYAt4;License: Standard Youtube License