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 8, Problem 37P
Carbon dioxide flows in a 50-mm-diameter pipe at a velocity of 1.5m/s, temperature 66°C, and absolute pressure 50 kPa. Is the flow laminar or turbulent? If the temperature is lowered to 30°C, what is the flow regime? If the pressure is reduced to 20 kPa, what is the flow regime? Explain the differences in answers in terms of the physical
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
answer first question
What should be the maximum radius of a pipe, to ensure that a liquid with a density of 5 g/cm^3 and a viscosity of 0.00522 kg/m*s, flowing horizontally at a velocity of 60 cm/s in laminar flow through the pipe at a temperature of 4°C?
Water at a temperature of 80oC (coefficient of viscosity is 0.357 centipoise) is flowing at a speed of 200 cm/s through a pipe of radius 2 mm. What is the nature of flow? What is the maximum velocity for it to remain laminar? What is the minimum velocity that will make the flow turbulent?
Chapter 8 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
Ch. 8 - Consider incompressible flow in a circular...Ch. 8 - What is the maximum flow rate of air that may...Ch. 8 - For flow in circular tubes, transition to...Ch. 8 - An incompressible fluid flows between two infinite...Ch. 8 - Oil is confined in a 4-in.-diameter cylinder by a...Ch. 8 - Viscous oil flows steadily between parallel...Ch. 8 - Calculate for the flow in this two-dimensional...Ch. 8 - The velocity profile in a two-dimensional open...Ch. 8 - A large mass is supported by a piston of diameter...Ch. 8 - A hydraulic jack supports a load of 9000 kg. The...
Ch. 8 - The basic component of a pressure gage tester...Ch. 8 - When a horizontal laminar flow occurs between two...Ch. 8 - In a laminar flow of water of 0:007 m3/s between...Ch. 8 - Consider the simple power-law model for a...Ch. 8 - A sealed journal bearing is formed from concentric...Ch. 8 - Using the profile of Problem 8.15, show that the...Ch. 8 - In a laminar flow between parallel plates spaced...Ch. 8 - A fluid of specific gravity 0.90 flows at a...Ch. 8 - Two immiscible fluids are contained between...Ch. 8 - The record-read head for a computer disk-drive...Ch. 8 - Consider steady, incompressible, and fully...Ch. 8 - In a flow of air between parallel plates spaced...Ch. 8 - Consider fully developed flow between parallel...Ch. 8 - Free-surface waves begin to form on a laminar...Ch. 8 - A viscous-shear pump is made from a stationary...Ch. 8 - The efficiency of the viscous-shear pump of Fig....Ch. 8 - An inventor proposes to make a viscous timer by...Ch. 8 - A continuous belt, passing upward through a...Ch. 8 - A wet paint film of uniform thickness, , is...Ch. 8 - Consider first water and then SAE 10W lubricating...Ch. 8 - Using Eq. A.3 in Appendix A for the viscosity of...Ch. 8 - Consider fully developed laminar flow in the...Ch. 8 - Carbon dioxide flows in a 50-mm-diameter pipe at a...Ch. 8 - Consider fully developed laminar flow in a...Ch. 8 - What is the largest diameter of pipeline that may...Ch. 8 - Consider fully developed laminar flow in the...Ch. 8 - Consider fully developed pressure-driven flow in a...Ch. 8 - In the laminar flow of an oil of viscosity 1 Pa_s,...Ch. 8 - In a laminar flow of 0.007 m3/s in a...Ch. 8 - Consider blood flow in an artery. Blood is...Ch. 8 - The classic Poiseuille flow (Eq. 8.12), is for...Ch. 8 - For pressure-driven, steady, fully developed...Ch. 8 - In a laminar flow in a 12-in.-diameter pipe the...Ch. 8 - A fluid of specific gravity 0.90 flows at a...Ch. 8 - In a food industry plant, two immiscible fluids...Ch. 8 - A horizontal pipe carries fluid in fully developed...Ch. 8 - Kerosene is pumped through a smooth tube with...Ch. 8 - In a flow of water in a 0.3-m-diameter pipe, the...Ch. 8 - A liquid drug, with the viscosity and density of...Ch. 8 - Laufer [5] measured the following data for mean...Ch. 8 - Equation 8.23 gives the power-law velocity profile...Ch. 8 - Consider fully developed laminar flow of water...Ch. 8 - Consider fully developed laminar flow in a...Ch. 8 - If the turbulent velocity profile in a pipe 0.6 m...Ch. 8 - Water flows in a horizontal constant-area pipe;...Ch. 8 - For a given volume flow rate and piping system,...Ch. 8 - Consider the pipe flow from the water tower of...Ch. 8 - At the inlet to a constant-diameter section of the...Ch. 8 - When oil (kinematic viscosity 1 104 m2/s,...Ch. 8 - When fluid of specific weight 50 lb/ft3 flows in a...Ch. 8 - If the head lost in 30-m-diameter of...Ch. 8 - Water flows at 10 L/min through a horizontal...Ch. 8 - Laufer [5] measured the following data for mean...Ch. 8 - Water is pumped at the rate of 0.075 m3/s from a...Ch. 8 - Just downstream from the nozzle tip the velocity...Ch. 8 - A horizontal nozzle having a cylindrical tip of 75...Ch. 8 - When 0.3 m3/s of water flows through a...Ch. 8 - Water flows through a 2-in.-diameter tube that...Ch. 8 - A 50-mm-diameter nozzle terminates a vertical...Ch. 8 - A 12-in.-diameter pipe leaves a reservoir of...Ch. 8 - A water pipe gradually changes from 6-in.-diameter...Ch. 8 - Air at standard conditions flows through a sudden...Ch. 8 - Water flows from a larger pipe, diameter D1 = 100...Ch. 8 - Flow through a sudden contraction is shown. The...Ch. 8 - A flow rate of 1.01/min of oil of specific gravity...Ch. 8 - Water flows in a smooth pipeline at a Reynolds...Ch. 8 - Air flows out of a clean room test chamber through...Ch. 8 - A conical diffuser is used to expand a pipe flow...Ch. 8 - By applying the basic equations to a control...Ch. 8 - Water at 45C enters a shower head through a...Ch. 8 - Water discharges to atmosphere from a large...Ch. 8 - A laboratory experiment is set up to measure...Ch. 8 - Oil with kinematic viscosity = 7.5 104 ft2/s...Ch. 8 - Water from a pump flows through a 9-in.-diameter...Ch. 8 - A 5-cm-diameter potable water line is to be run...Ch. 8 - A system for testing variable-output pumps...Ch. 8 - Two reservoirs are connected by three clean...Ch. 8 - Water, at volume flow rate Q = 0.75 ft3/s, is...Ch. 8 - When you drink a beverage with a straw, you need...Ch. 8 - What flow rate (gpm) will be produced in a...Ch. 8 - Gasoline flows in a long, underground pipeline at...Ch. 8 - An 18-in.-diameter new riveted steel pipeline 1000...Ch. 8 - What diameter of smooth masonry pipe is needed to...Ch. 8 - Water flows steadily in a 125-mm-diameter...Ch. 8 - Two galvanized iron pipes of diameter D are...Ch. 8 - A mining engineer plans to do hydraulic mining...Ch. 8 - The flow of water through a 150-mm-diameter...Ch. 8 - The fluid flowing has specific gravity 0.90; V75=6...Ch. 8 - Water is flowing. Calculate the direction and...Ch. 8 - Investigate the effect of tube roughness on flow...Ch. 8 - Investigate the effect of tube length on water...Ch. 8 - For the pipe flow into a reservoir of Example 8.5...Ch. 8 - Calculate the magnitude and direction of the...Ch. 8 - Experimental determination of local losses and...Ch. 8 - Water is flowing. Calculate the gage reading when...Ch. 8 - The siphon shown is fabricated from 50-mm-i.d....Ch. 8 - A large open water tank has a horizontal cast iron...Ch. 8 - A tank containing 30 m3 of kerosene is to be...Ch. 8 - A 90 screwed elbow is installed in a...Ch. 8 - Calculate the total tension in the bolts. Neglect...Ch. 8 - A horizontal 50-mm-diameter PVC pipeline leaves...Ch. 8 - You are watering your lawn with an old hose....Ch. 8 - Your boss claims that for pipe flow the flow rate,...Ch. 8 - A hydraulic press is powered by a remote...Ch. 8 - One-quarter of a cubic meter per second of liquid...Ch. 8 - Calculate the flow rate from this water tank if...Ch. 8 - A 6-ft-diameter pipeline 4 miles long between two...Ch. 8 - A new industrial plant requires a water flow rate...Ch. 8 - What diameter water pipe is required to handle...Ch. 8 - A pipe friction experiment for air consists of a...Ch. 8 - Oil has been flowing from a large tank on a hill...Ch. 8 - The pressure rise across a water pump is 35 psi...Ch. 8 - Cooling water is pumped from a reservoir to rock...Ch. 8 - You are asked to size a pump for installation in...Ch. 8 - Heavy crude oil (SG = 0.925 and = 1.0 104 m2/s)...Ch. 8 - Petroleum products are transported over long...Ch. 8 - The head versus capacity curve for a certain fan...Ch. 8 - A swimming pool has a partial-flow filtration...Ch. 8 - Water at 65C flows through a 75-mm-diameter...Ch. 8 - A 12 in. 6 in. Venturi meter is installed in a...Ch. 8 - A 1-in.-diameter nozzle is attached to a...Ch. 8 - A sharp-edged orifice with conventional pressure...Ch. 8 - A venturi meter with a 3-in.-diameter throat is...Ch. 8 - Air flows through a venturi meter with a...Ch. 8 - Water at 10C flows steadily through a venturi. The...Ch. 8 - Drinking straws are to be used to improve the air...Ch. 8 - In some western states, water for mining and...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Determine the normal stress in each member of the truss structure. All joints are ball joint, and the material ...
Introduction To Finite Element Analysis And Design
The force in members BC, CF, and FE of the truss and the state of members are in tension or compression.
Engineering Mechanics: Statics & Dynamics (14th Edition)
figure 4.2 shows a vacuum tank with a flat circular observation window in one end. If the pressure in the tank ...
Applied Fluid Mechanics (7th Edition)
ICA 7-20
A "knot'' is a unit of speed in marine travel. One knot is 1.852 kilometers per hour (km/h]. Rather th...
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Determine the magnitude and direction of the velocity of plane B relative to plane A.
Engineering Mechanics: Dynamics (14th Edition)
Comprehension Check 8-8
The temperature of dry ice is −109.3 degrees Fahrenheit [°F]. Convert this temperature ...
Thinking Like an Engineer: An Active Learning Approach (4th 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
- You are asked to calculate the pressure drop in a straight pipe. Air of density 1.225 kg/m³ is flowing through the pipe. The diameter of the pipe is 25 mm. The velocity of the flow is 1 m/s. The viscosity of air is given as 1.85 x 10-5 Pas. From this information the Reynolds number was calculated to be 1655. Determine the Head drop if the pipe is 100 m in length. Hint: For laminar flow the fanning friction factor can be calculated as 16/Re 4 fLū² hs 2gD 2 Answer: Answerarrow_forwardHeated air at 1 atm and 35 °C is to be transported in a 150 m long circular plastic duct at a rate of 0.35 m/s. The diameter D of the plastic tube is 0.3 m. Determine the pressure drop and the head loss in the pipe. The density and kinematic viscosity of air are 1.145 kg/m3 and 1.655 x 10 5 m²/s. 0.35 m³/s D air 150 marrow_forwardAir having density p = 0.981 kg/m³ is flowing in a wind tunnel. A differential manometer connected to a pitot tube is used to measure the dynamic pressure of the air at the pitot tube location. The liquid in the manometer is oil having a specific gravity of 0.826, and the manometer reading is 76.2 mm. The wind tunnel is on the CU campus in Denver where g = 9.796 m/s?. a) Find the dynamic pressure of the air (answer: 615.8 Pa). b) Find the speed of the air at the pitot tube location (answer: 35.4 m/s). Air p = 0.981 kg/m³ h = 76.2 mm Oil, SG = 0.826arrow_forward
- A large plate is pulled at a constant speed of U = 4 m/s over a fixed plate on 5-mm-thick engine oil film at 20°C. Assuming a half-parabolic velocity profile in the oil film, while the flow is developing as sketched, determine the shear stress on the upper plate and its direction. Repeat for the linear profile (dashed line) that develops after a long timearrow_forwardHelium at 25°C and 110 kPa (absolute) flows into a copper tube (1-1/4-standard, type M) that is 10 m long. Is the flow fully developed at tube end if the helium mass flow rate is 0.02 kg/s? Ethyl alcohol flows into a 6 cm ID pipe through a well-rounded entrance. After 20 cm of pipe length, measurements taken in the pipe show that the flow is fully developed. Determine the volume flow rate in the pipe, assuming laminar flow exists.arrow_forwardWater is moving forward through parallel plates at standard conditions. The bottom plate is fixed, and upper plate moves when a force is applied. What force value is required to make the upper plate move if the length of both plates, mean velocity. effective area, and vertical distance between the two plates are 5.08 cm, 3 f/s, 200 in and 0.2 in respectively? Determine the effective diameter? The velocity profile is given by U(x.y) - Umean cos(x2 + 2y) -e Attacharrow_forward
- An oil gusher shoots crude oil 23.0 m into the air through a pipe with a 0.100 m diameter. Neglecting air resistance but not the resistance of the pipe, and assuming laminar flow, calculate the pressure (in N/m2) at the entrance of the 45.0 m long vertical pipe. Take the density of the oil to be 900 kg/m3 and its viscosity to be 1.00 (N/m2) · s (or 1.00 Pa · s). Note that you must take into account the pressure due to the 45.0 m column of oil in the pipe.arrow_forwardGlycerin, with a density of 1260 kg/m3 and an absolute viscosity of 1.5 kg/m.s, flows in a tube with an internal diameter of 5,0 cm, but it is not known whether the regime is laminar or turbulent. Knowing that the length of the hydrodynamic inlet of this flow is 0.2 m, determine the velocity of the oil and the flow regime. (the form is in the side picture)arrow_forward1. What is the criterion used to classify the viscous flow into laminar and turbulent? Explain. 2. How can we derive the equations of motion for incompressible viscous fluidsarrow_forward
- The 100-mm diameter pipe is connected by a nozzle to a large reservoir of air that is at a temperature of 20 °C and absolute pressure of 500 kPa The backpressure causes M,> 1, and the flow is choked at the exit, section 2, when L=5 m. Assume a constant friction factor of 0.0085 throughout the pipe, Gas constant for air is R-286 9 J/kg-K) and its specific heat ratio is k-140 (Figure 1) Figure 100mm < 1 of 1 1. T Part A Determine the mass flow through the pipe Express your answer using three significant figures. Submit VAE 1 vec Provide Feedback Request Answer D kg/sarrow_forwardA liquid of viscosity of 0.03 N s m2 is flowing under laminar conditions through a convergent, tapered tube for which the tube diameter changes linearly with length. The tube length is 0.50 m and its diameter varies from 0.01 m at the entrance to 0.005 m at the exit. Determine the pressure drop which is required to maintain the flow at a rate of 10-7 m3 s-1. The effect of kinetic energy due to the change in velocity in the tube may be neglected. Show the derivation of the final eauation used in solving this problem.arrow_forwardConsider laminar flow of a Newtonian fluid ofviscosity m between two parallel plates. The flow is onedimensional,and the velocity profile is given as u(y) = 4umax[ y/h - (y/h)2], where y is the vertical coordinate from thebottom surface, h is the distance between the two plates,and umax is the maximum flow velocity that occurs at midplane.Develop a relation for the drag force exerted on bothplates by the fluid in the flow direction per unit area of theplates.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
Properties of Fluids: The Basics; Author: Swanson Flo;https://www.youtube.com/watch?v=TgD3nEO1iCA;License: Standard YouTube License, CC-BY
Fluid Mechanics-Lecture-1_Introduction & Basic Concepts; Author: OOkul - UPSC & SSC Exams;https://www.youtube.com/watch?v=6bZodDnmE0o;License: Standard Youtube License