Fox And Mcdonald's Introduction To Fluid Mechanics
9th Edition
ISBN: 9781118921876
Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Textbook Question
Chapter 4, Problem 13P
A 0.3 m by 0.5 m rectangular air duct carries a flow of 0.45 m3/s at a density of 2 kg/m3. Calculate the mean velocity in the duct. If the duct tapers to 0.15 m by 0.5 m size, what is the mean velocity in this section if the density is 1.5 kg/m3 there?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
A 0.4 m-diameter pipe bend shown in the diagram is carrying crude oil (S = 0.65) with a steady flow with
velocity of 3 m/s. The bend has an angle of 30° and lies in a vertical plane. The volume of oil in the bend is 1.2
m3, and the empty weight of the bend is 4 kN. Assume the pressure along the centerline of the bend is constant
with a value of 85 kPa gage. Water density = 1000 kg/m3, g= 9.81 m/s?, Patm = 100 kPa, frictionless flow. Answer
the following:
Bolted flange
Flow
30
The net pressure force along the horizontal direction (N).
Net out flow rate of momentum through the control surface (N) in the horizontal direction. Absolute value.
Water is flowing out of the nozzle (2) into atmospheric pressure (101 kPa). What is the horizontal force exerted by the flange to hold the nozzle (2) attached to the pipe (1)? Flow velocity at point (2) is 8 m/s.
Water density is 1000 kg/m3.
Consider a length of pipe bent into a U-shape. The inside diameter of thepipe is 0.5 m. Air enters one leg of the pipe at a mean velocity of 100 m/sand exits the other leg at the same magnitude of velocity, but moving inthe opposite direction. The pressure of the flow at the inlet and exit is theambient pressure of the surroundings. Calculate the magnitude anddirection of the force exerted on the pipe by the airflow. The air densityis 1.23 kg/m3.
Chapter 4 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
Ch. 4 - An ice-cube tray containing 250 mL of freshwater...Ch. 4 - A hot air balloon with an initial volume of 2600...Ch. 4 - A fully loaded Boeing 777-200 jet transport...Ch. 4 - On the Milford Trek in New Zealand, there is a...Ch. 4 - A high school experiment consists of a block of...Ch. 4 - For a small particle of styrofoam (density = 19.2...Ch. 4 - Air at 20C and an absolute pressure of 101.3 kpa...Ch. 4 - A block of copper of mass 5 kg is heated to 90C...Ch. 4 - The average rate of heat loss from a person to the...Ch. 4 - The velocity field in the region shown is given by...
Ch. 4 - The area shown shaded is in a flow where the...Ch. 4 - Obtain an expression for the kinetic energy flux,...Ch. 4 - A 0.3 m by 0.5 m rectangular air duct carries a...Ch. 4 - Across a shock wave in a gas flow there is a great...Ch. 4 - Water flows in a pipeline composed of 75-mm and...Ch. 4 - The velocity distribution for laminar flow in a...Ch. 4 - A farmer is spraying a liquid through 10 nozzles,...Ch. 4 - A university laboratory that generates 15 m3/s of...Ch. 4 - Hydrogen is being pumped through a pipe system...Ch. 4 - Calculate the mean velocities for these...Ch. 4 - If the velocity profile in a passage of width 2R...Ch. 4 - Fluid with 1040 kg/m3 density is flowing steadily...Ch. 4 - A rice farmer needs to fill a 150 m 400 m field...Ch. 4 - In your kitchen, the sink is 60 cm by 45.7 cm. by...Ch. 4 - Fluid passes through this set of thin closely...Ch. 4 - A pipeline 0.3 m in diameter divides at a Y into...Ch. 4 - A manifold pipe of 3 in. diameter has four...Ch. 4 - You are trying to pump storm water out of your...Ch. 4 - In the incompressible flow through the device...Ch. 4 - Water enters a wide, flat channel of height 2h...Ch. 4 - Find the average efflux velocity V if the flow...Ch. 4 - Find V for this mushroom cap on a pipeline. P4.32Ch. 4 - Incompressible fluid flows steadily through a...Ch. 4 - A two-dimensional reducing bend has a linear...Ch. 4 - Water enters a two-dimensional, square channel of...Ch. 4 - Viscous liquid from a circular tank. D = 300 mm in...Ch. 4 - A rectangular tank used to supply water for a...Ch. 4 - A cylindrical tank, 0.3 m in diameter, drains...Ch. 4 - Air enters a tank through an area of 0.018 m2 with...Ch. 4 - A cylindrical tank, of diameter D = 50 mm, drains...Ch. 4 - A conical flask contains water to height H = 36.8...Ch. 4 - Water flows steadily past a porous flat plate....Ch. 4 - A tank of fixed volume contains brine with initial...Ch. 4 - A conical funnel of half-angle = 30 drains...Ch. 4 - Evaluate the net rate of flux of momentum out...Ch. 4 - Water flows steadily through a pipe of length L...Ch. 4 - Evaluate the net momentum flux through the bend of...Ch. 4 - Evaluate the net momentum flux through the channel...Ch. 4 - A conical enlargement in a vertical pipeline is 5...Ch. 4 - A 100-mm nozzle is bolted (with 6 bolts) to the...Ch. 4 - The projectile partially fills the end of the 0.3...Ch. 4 - Considering that in the fully developed region of...Ch. 4 - A jet of water issuing from a stationary nozzle at...Ch. 4 - A circular cylinder inserted across a stream of...Ch. 4 - A 6-in.-diameter horizontal pipeline bends through...Ch. 4 - The axes of the pipes are in a vertical plane. The...Ch. 4 - Water flows through a tee in a horizontal pipe...Ch. 4 - In a laboratory experiment, the water flow rate is...Ch. 4 - A gate is 1 m wide and 1.2 m tall and hinged at...Ch. 4 - Water flows steadily through a fire hose and...Ch. 4 - Two types of gasoline are blended by passing them...Ch. 4 - A circular cylinder inserted across a stream of...Ch. 4 - The pressure difference results from head loss...Ch. 4 - Obtain expressions for the rate of change in mass...Ch. 4 - Water is flowing steadily through the 180 elbow...Ch. 4 - Water flows steadily through the nozzle shown,...Ch. 4 - The pump, suction pipe, discharge pipe, and nozzle...Ch. 4 - The passage is 1.2 m wide normal to the paper....Ch. 4 - If the two-dimensional flow rate through this...Ch. 4 - Assume the bend of Problem 4.35 is a segment of a...Ch. 4 - A flat plate orifice of 50 mm diameter is located...Ch. 4 - At rated thrust, a liquid-fueled rocket motor...Ch. 4 - Flow from the end of a two-dimensional open...Ch. 4 - Calculate the magnitude and direction of the...Ch. 4 - This water jet of 50 mm diameter moving at 30 m/s...Ch. 4 - If the splitter is removed from the plate of...Ch. 4 - Consider flow through the sudden expansion shown....Ch. 4 - A conical spray head is shown. The fluid is water...Ch. 4 - A curved nozzle assembly that discharges to the...Ch. 4 - The pump maintains a pressure of 10 psi at the...Ch. 4 - A motorboat moves up a river at a speed of 9 m/s...Ch. 4 - A 30 reducing elbow is shown. The fluid is water....Ch. 4 - A monotube boiler consists of a 6 m length of...Ch. 4 - Water is discharged at a flow rate of 0.3m3/s from...Ch. 4 - A nozzle for a spray system is designed to produce...Ch. 4 - The horizontal velocity in the wake behind an...Ch. 4 - An incompressible fluid flows steadily in the...Ch. 4 - Consider the incompressible flow of fluid in a...Ch. 4 - Air at standard conditions flows along a flat...Ch. 4 - Gases leaving the propulsion nozzle of a rocket...Ch. 4 - Two large tanks containing water have small...Ch. 4 - Students are playing around with a water hose....Ch. 4 - A 2-kg disk is constrained horizontally but is...Ch. 4 - A stream of water from a 50-mm-diameter nozzle...Ch. 4 - A plane nozzle discharges vertically 1200 L/s per...Ch. 4 - In ancient Egypt, circular vessels filled with...Ch. 4 - Incompressible fluid of negligible viscosity is...Ch. 4 - The narrow gap between two closely spaced circular...Ch. 4 - Design a clepsydra (Egyptian water clock), which...Ch. 4 - Water from a stationary nozzle impinges on a...Ch. 4 - A freshwater jet boat takes in water through side...Ch. 4 - The Canadair CL-215T amphibious aircraft is...Ch. 4 - Water, in a 100-mm-diameter jet with speed of 30...Ch. 4 - Consider a series of turning vanes struck by a...Ch. 4 - A steady jet of water is used to propel a small...Ch. 4 - The cart of Problem 4.105 is accelerated by a jet...Ch. 4 - A vane/slider assembly moves under the influence...Ch. 4 - A cart is propelled by a liquid jet issuing...Ch. 4 - For the vane/slider problem of Problem 4.107, find...Ch. 4 - If the cart of Problem 4.105 is released at t = 0,...Ch. 4 - The wheeled cart shown rolls with negligible...Ch. 4 - A rocket sled is to be slowed from an initial...Ch. 4 - Starting from rest, the cart shown is propelled by...Ch. 4 - Solve Problem 4.107 if the vane and slider ride on...Ch. 4 - For the vane/slider problem of Problem 4.114, plot...Ch. 4 - A rectangular block of mass M, with vertical...Ch. 4 - A vertical jet of water impinges on a horizontal...Ch. 4 - A rocket sled traveling on a horizontal track is...Ch. 4 - A rocket sled accelerates from rest on a level...Ch. 4 - A rocket sled with initial mass of 900 kg is to be...Ch. 4 - A rocket sled with initial mass of 3 metric tons,...Ch. 4 - A home-made solid propellant rocket has an initial...Ch. 4 - Neglecting air resistance, what speed would a...Ch. 4 - The moving tank shown is to be slowed by lowering...Ch. 4 - The 90 reducing elbow of Example 4.6 discharges to...Ch. 4 - Crude oil (SG = 0:95) from a tanker dock flows...Ch. 4 - The simplified lawn sprinkler shown rotates in the...Ch. 4 - Calculate the torque about the pipes centerline in...Ch. 4 - A fire truck is equipped with a 66 ft long...Ch. 4 - Calculate the torque exerted on the flange joint...Ch. 4 - Consider the sprinkler of Problem 4.130 again....Ch. 4 - A small lawn sprinkler is shown. The sprinkler...Ch. 4 - When a garden hose is used to fill a bucket, water...Ch. 4 - A pipe branches symmetrically into two legs of...Ch. 4 - Compressed air is stored in a pressure bottle with...Ch. 4 - A turbine is supplied with 0.6 m3/s of water from...Ch. 4 - Air is drawn from the atmosphere into a...Ch. 4 - At high speeds the compressor and turbine of the...Ch. 4 - Transverse thrusters are used to make large ships...Ch. 4 - All major harbors are equipped with fire boats for...Ch. 4 - A pump draws water from a reservoir through a...Ch. 4 - Liquid flowing at high speed in a wide, horizontal...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Write an application that tests whether the examples of the Math class method calls shown in Fig. 6.2 actually ...
Java How to Program, Early Objects (11th Edition) (Deitel: How to Program)
Indexing can clearly be very beneficial. Why should you not create an index for every column of every table of ...
Modern Database Management
Assume the support at B is a roller. Point C is located just to the right of the 8-kip load. Prob. 7-2
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
Show a snippet of PHP code for disconnecting from the database. Explain the meaning of the code.
Database Concepts (8th Edition)
Porter’s competitive forces model: The model is used to provide a general view about the firms, the competitors...
Management Information Systems: Managing The Digital Firm (16th Edition)
CONCEPT QUESTIONS
15.CQ3 The ball rolls without slipping on the fixed surface as shown. What is the direction ...
Vector Mechanics for Engineers: Statics and Dynamics
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
- A fluid moves in a steady flow manner between two sections in a flow line. At the entrance section A1 = 1m², V1= 0.5 m/s, P1= 4kgm/m³. At the exit section: A2 = 0.2m², V2= 0.20m³/kgm. Calculate the mass flow rate in kg/s and the speed at section 2 in m/s.arrow_forwardWater is pumped at a rate of 24.33 m/s from tank (A) and out through a 298.05 m pipe to tank (B). The surface roughness of the pipe is 0.046 mm. When the water levels are as shown in the given figure, the head provided by the pump is 70.54 m. Calculate the pipe diameter (mm) if the water temperature is 10°C (do not assume the water mass density and the viscosity). Use f = 0.02 for the first iteration and try only one more iterations (two in total) by using Swamee and Jain formula. Elevation Elevatjon - = 140 m = 135 m Tank (B) Elevation = 100 m Tank (A) pump Elevation = 95 marrow_forwardsolve belowarrow_forward
- Oil (SG=0.91) enters the thrust bearing at 250 N/hr and exits radially through the narrow clearance between thrust plates. Compute (a) the outlet volume flow in mL/s, and (b) the average outlet velocity in cm/sarrow_forwardA siphon pipe of diameter 250 mm contracts to a diameter of 100 mm over a vertical distance of 5 m before emptying into a river. If the pipe is full of water flowing at 0.1 m/s at the 250 mm section, what is the absolute pressure at this point, and what is the water velocity just before it vents into the river? You should assume the pipe to be frictionless and take atmospheric pressure to be 100 kPa.arrow_forwardA vertical circular stack 100 ft. high converges uniformly from a diameter of 20 ft at the bottom to 16 ft at the top. Coal gas with a unit weight of 0.030 lb/ft3 enters the bottom of the tank with a velocity of 10 ft/s. The unit weight of the gas increases by 7.5 percent every 2 ft. Compute the: (1) velocity of flow at every 5 ft along the stack. Show figure.arrow_forward
- A pipeline carrying water reduces from 0.9 m diameter to 0.6 m diameter. The initial water velocity is 2.1 m/s and the initial pressure is 414 kPa. If there is a frictional loss across the pipe reduction of 1.5 metres of water, calculate the force on the pipe reduction.arrow_forwardWhat is the right answer for this problem?arrow_forwardA vertical pipe of 1 m diameter and 14 m length has a pressure head of 5 m of oil at the upper end. When oil flows through the pipe at an average velocity of 4.5 m/s, the head loss due to friction is 1.8 m of oil. The density of oil is 840 kg/m3 Find the pressure at the lower end of the pipe, when the oil flow is (a) ) Pressure at lower end when flow of oil upward direction (b) ) Pressure at lower end when flow of oil downward and also draw the neat sketch.arrow_forward
- Water is pumped at a rate of 21.4 m/s from tank (A) and out through a 300.5 m pipe to tank (B). The surface roughness of the pipe is 0.046 mm. When the water levels are as shown in the given figure, the head provided by the pump is 70 m, Calculate the pipe diameter (mm) if the water temperature is 10°C (do not assume the water mass density and the ViScosity), Usef 0.02 for the first iteration and try only one more iterations (two in total) by using Swamee and Jain formula. Elevation 135 Elevation 140 m Tank (B) Tievation 100m Tank LA) Jund: Elevitions in Write the answer for any numbers after the declmalarrow_forwardSize the duct system shown in the figure. The air velocity at the inlet is 8m/s. The length of each duct segment is 4m. If the pressure drop in each diffuser and elbow (or Tee branch) is 20Pa and 25 Pa respectively, calculate the pressure head required for the AHU. (Note: CFM=ft³/min.) Pgh xh (чоржъх Dary AHU 600CFM 800CFM 1000CFM 600CFM 800CFM 1000CFM 600CFM 800CFM 1000CFMarrow_forward4. 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)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
Fluid Mechanics - Viscosity and Shear Strain Rate in 9 Minutes!; Author: Less Boring Lectures;https://www.youtube.com/watch?v=_0aaRDAdPTY;License: Standard youtube license