FOX+MCDONALD'S INTRO.TO...-ACCESS+BOX
9th Edition
ISBN: 9781118471340
Author: Pritchard
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 8, Problem 152P
Drinking straws are to be used to improve the air flow in a pipe-flow experiment. Packing a section of the air pipe with drinking straws to form a “laminar flow clement” might allow the air flow rate to be measured directly, and simultaneously would act as a flow straightener. To evaluate this idea, determine (a) the Reynolds number for flow in each drinking straw, (b) the friction factor for flow in each straw, and (c) the gage pressure at the exit from the drinking straws. For laminar flow in a tube, the entrance loss coefficient is Kent =1.4 and α = 2.0. Comment on the utility of this idea.
P8.152
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
answer first question
A fluid is flowing through a pipe with diameter of d = 6 mm at a mean flow velocity of V = 0.01 m/s.
The viscosity of the fluid is μ = 8.9e - 4 Pa. s and the density is p = 998 kg/m³.
Please provide your answers to 4 significant figures.
(a) What is the Reynolds Number for the fluid flow?
Re=
(b) What is the friction factor for this fluid flow?
f=
What are the factors upon which the frictional loss in a pipe depends?
For friction loss, how is the deviation between measured and theoretical values of f among the four segments of pipes? Which one has the largest deviations?
Is reference values of KL is affected by the flow rate?
Discuss the trend of deviation for KL when the flow rate increases for different pipe fittings.
Chapter 8 Solutions
FOX+MCDONALD'S INTRO.TO...-ACCESS+BOX
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
A cylinder having a mass of 250 kg is to be supported by the cord that wraps over the pipe. Determine the small...
Engineering Mechanics: Statics
If the bar has a diameter of 20 mm, determine the maximum stress developed in the bar if the weight is (a) drop...
Mechanics of Materials (10th Edition)
12-121. Determine the deflection at the end B of the clamped A-36 steel strip. The spring has a stiffness of k ...
Mechanics of Materials
What parts are included in the vehicle chassis?
Automotive Technology: Principles, Diagnosis, And Service (6th Edition) (halderman Automotive Series)
ICA 8-28
If the pressure is 250 feet of water [ft H2O], what is the pressure in inches of mercury [in Hg]?
Thinking Like an Engineer: An Active Learning Approach (3rd Edition)
Water at 75 C is flowing in a standard hydraulic copper tube, 15 mm OD1.2 mm wall, at a rate of 12.9 L/min. Cal...
Applied Fluid Mechanics (7th 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
- FOR THE PIPE NETWORKS SHOWN, THE FLOW OF WATER FROM A TO THE FIRST JUNCTION IS 2 CUBIC FEET PER SECOND. ASSUMIN ALL PIPES HAVE A FRICTION FACTOR OF 0.020 A. DETERMINE THE HEAD LOSS IN FEET IN PIPE 1(ROUND OFF FINAL ANSWER TO TWO DECIMAL PLACES) B. B. DETERMINE THE HEAD LOSS IN PIPE 5 ROUND OFF FINAL ANSWER TO TWO DECIMAL PLACES)arrow_forwardA pipe is often used to assess the flow rate of water in the center of a pipe with an internal diameter of 102.3 mm at 20°C (density = 998.3 kg/m3, viscosity = 1.005 CP). The pitot tube coefficient is 0.98, and the manometer reading is 10 mm of mercury at 20°C (density = 13,545. 85 kg/m3). Compute the velocity at the center and the water's volumetric flow ratearrow_forwardA patient receives IV fluid through a needle of radius 0.200 mm and length 2.0 cm. The density of the IV fluid is 1050 kg/m3 and it has a viscosity of 2.7 x 10-3 Pa s. The bag supplying the IV is 1.30 m above the patients arm. The blood pressure in the patient’s vein is 80 mm Hg. The viscosity of the IV fluid is significant, and the narrow needle will be the overwhelming factor in the flow rate. We will need to use the equation for volume flow rate under viscosity in this problem. To do that, we will need the pressure difference on the two sides of the needle. First, find the gauge pressure on the outside of the needle. This will be due to the height of the IV fluid in the bag. The gauge pressure outside the needle is _______x104 Pa. The gauge pressure in the vein is Answerx104 Pa.Note: We are using gauge pressure for both answers because the pressure difference determines the volume flow rate. What is the volume flow rate of the IV? (Give your answer in ml per hour. There are…arrow_forward
- Water flows at an average velocity of 10 m/s through a horizontal tube of diameter 5 cm. The pressure is measured at 1 m intervals as follows: (a) Estimate the total head loss.(b) Estimate the entrance length based on the data and based on the accepted formula.(c) Estimate the wall shear stress in the fully developed region.(d) Estimate the overall friction factor based on the data. Estimate the friction factor in the fully developed region only.arrow_forwardWater at 20°C flows in a 100-mm-diameter new cast iron pipe with a velocity of 5.0 m/s. Determine thepressure drop in kPa per 100 m of pipe and the power lost (in kilowatts) to friction.Ans. 314 kPa per 100 m, 12.36 kW per 100 m [Note: Indicate the formula used in determining the friction factor. (Colebrook Equation, Haaland Equation, andor Swamee Jain Equation). If not given, Use properties of fluid based on temperature available on the internet. E.g. (density, viscosity) . Apply roughness of pipe values from https://www.pipeflow.com/pipe-pressure-drop-calculations/pipe-roughness}arrow_forwardThe saturated steam produced in the steam boiler with a flow rate of 4700 kg/h and a pressure of 14 bars is desired to be transported to the point of use by means of a line with an equivalent pipe length of 925 m. The maximum pressure loss in the steam line is 1.5 bar and the Steam speed is between 10 — 20 m/s. What is the optimal pipe diameter that can be selected according to this data?arrow_forward
- 1. Are pipe systems common in engineering applications? 2. What factors are considered in optimizing design of these systems?arrow_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_forwardSketch the shear stress and velocity distribution for laminar flow across a pipe section?arrow_forward
- 4. The flow rate of water through a commercial steel pipe with a diameter of 10 cm and roughness of 0.045 mm is 0.04 m³/s. Try to calculate the difference height H in water level between the two pools. The valve and the bend loss coefficients are 5.7 and 0.64, respectively. The inlet and outlet loss coeffi- cients are 0.5 and 1.0, respectively. Kinematic viscosity of water is 1-10-6 m²/s. Round off your answer to one decimal digit in m, but enter the answer without the unit. Water 20°C Valve 20m Bend 10m 20m commercial steel pipe diameter of 10cm Figure 1: Problem 4. Harrow_forwardfirst 2 parts pleasearrow_forwardWhat are the primary considerations when selecting a flowmeter to measure the flow rate of a fluid?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 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
Hydronics Step by Step; Author: Taco Comfort Solutions;https://www.youtube.com/watch?v=-XGNl9kppR8;License: Standard Youtube License