Fluid Mechanics: Fundamentals and Applications
4th Edition
ISBN: 9781259696534
Author: Yunus A. Cengel Dr., John M. Cimbala
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 8, Problem 91P
A certain pail of cast iron piping of a water cliseribmioji system involves a parallel section. Both jiallel piPes have a dianieter of 30 cm. and tite flow is full turbulent. One of the branches (pipe A) is 1 00 ni long while the other branch (pipe B) is 20O in long. If tite flow late through pipe A is 0.4 in3s. detennine the flow rate through pipe B. Disregard minor losses and assume the water temperature to be I 5°C. Show that the flow is fully rough. and thus the friction factot’ is iiidependent of Reynolds inimber. Answer: 0.310 m3Is
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Q3/Head loss in a pipe is measured by the Equation,
h; = f(L/d).(v/2g)
Prove that this Equation can be written in the form,
h;= 0.0826 f (L/d³).(Q?/2g)
Q4/Three pipes No. (1), (2) and (3) are connected in par
%D
Ciquro No
12) DsecSure headc at iuınstic
point c D and
ity of 25 m/s. 1 he pressures; Iy while the datum head at WJ A pipe of diameter 400 mm carries water L oints A and B are given as 29.43 Nfem” and 22.563 Nfcm respective B are 28 m and 30 m. Find the loss of head betweert A and B
ori (P=880 kJ /m³ ) Flow under head
30 min Pr Pe (L= 3000 m , D= o-3 m) beconse
OF Cooling Viscosity a long the PiPo length
Will Chanje and equal to o.s Pa-s for
ISoo m and . 14Pa.s for the Yemain length
of Pipe Prove that the flow is laminar and
find the f low ra te .
Chapter 8 Solutions
Fluid Mechanics: Fundamentals and Applications
Ch. 8 - How is the hydrodynamic entry length defined for...Ch. 8 - Why are liquids usually transported in circular...Ch. 8 - What is the physical significance of the Reynolds...Ch. 8 - Consider a person walking first in air and then in...Ch. 8 - Show that the Reynolds number for flow in a...Ch. 8 - Which fluid at room temperature requires a larger...Ch. 8 - What is the eneia1Iy accepted value of the...Ch. 8 - Consider the flow of air and wale in pipes of the...Ch. 8 - Consider laminar flow in a circular pipe. Is the...Ch. 8 - How does surface roughness affect the pressure...
Ch. 8 - What is hydraulic diameter? How is it defined?...Ch. 8 - Shown here is a cool picture of water being...Ch. 8 - What fluid property is responsible for the...Ch. 8 - In the fully developed region of flow in a...Ch. 8 - Someone claims that the volume flow rate in a...Ch. 8 - Someone claims that the average velocity in a...Ch. 8 - Someone claims that the shear stress at the center...Ch. 8 - Someone claims that in fully developed turbulent...Ch. 8 - How does the wall shear stress w , vary along the...Ch. 8 - How is the friction factor for flow in a pipe...Ch. 8 - Discuss whether fully developed pipe flow is one-,...Ch. 8 - Consider fully developed flow in a circular pipe...Ch. 8 - Consider fully developed laminar how in a...Ch. 8 - Explain why the friction factor is independent of...Ch. 8 - Consider laminar flow of air in a circular pipe...Ch. 8 - Consider fully developed laminar flow in a...Ch. 8 - How is head loss related to pressure loss? For a...Ch. 8 - What is turbulent viscosity? What caused it?Ch. 8 - What is the physical mechanism that causes the...Ch. 8 - The head toss for a certain circular pipe is given...Ch. 8 - The velocity profile for the fully developed...Ch. 8 - Water at 15°C (p = 999.1 kg/m3 and = 1.138 × 10-3...Ch. 8 - Water at 70F passes through...Ch. 8 - Heated air at 1 atm and 100F is to be transported...Ch. 8 - In fully developed laminar flow in a circular...Ch. 8 - The velocity profile in fully developed laminar...Ch. 8 - Repeat Prob. 8-36 for a pipe of inner radius 7 cm.Ch. 8 - Water at 10C (p = 999.7 kg/m3 and = 1.307 ×...Ch. 8 - Consider laminar flow of a fluid through a square...Ch. 8 - Repeat Prob. 8-39 for tribulent flow in smooth...Ch. 8 - Air enters a 10-m-long section of a rectangular...Ch. 8 - Consider an air solar collector that is 1 m wide...Ch. 8 - Oil with p = 876 kg/m3 and = 0.24 kg/m.s is...Ch. 8 - Glycenii at 40 C with p = l22 kg/m3 and = 0.27...Ch. 8 - Air at 1 atm and 60 F is flowing through a 1 ft ×...Ch. 8 - Oil with a density of 850 kg/m3 and kinematic...Ch. 8 - In an air heating system, heated air at 40 C and...Ch. 8 - Glycerin at 40 C with p = 1252 kg/m3 and = 0.27...Ch. 8 - Liquid ammonia at 20 C is flowing through a...Ch. 8 - Consider the fully developed flow of glycerin at...Ch. 8 - The velocity profile for a steady laminar flow in...Ch. 8 - The generalized Bernoulli equation for unsteady...Ch. 8 - What is minor loss in pipe flow? How is the minor...Ch. 8 - Define equivalent length for minor loss in pipe...Ch. 8 - The effect of rounding of a pipe inlet on the loss...Ch. 8 - The effect of rounding of a pipe exit on the loss...Ch. 8 - Which has a greater minor loss coefficient during...Ch. 8 - A piping system involves sharp turns, and thus...Ch. 8 - During a retrofitting project of a fluid flow...Ch. 8 - A horizontal pipe has an abrupt expansion from...Ch. 8 - Consider flow from a water reservoir through a...Ch. 8 - Repeat Prob. 8-62 for a slightly rounded entrance...Ch. 8 - Water is to be withdrawn from an 8-m-high water...Ch. 8 - A piping system equipped with a pump is operating...Ch. 8 - Water is pumped from a large lower reservoir to a...Ch. 8 - For a piping system, define the system curve, the...Ch. 8 - Prob. 68CPCh. 8 - Consider two identical 2-m-high open tanks tilled...Ch. 8 - A piping system involves two pipes of different...Ch. 8 - A piping system involves two pipes of different...Ch. 8 - A piping system involves two pipes of identical...Ch. 8 - Water at 15 C is drained from a large reservoir...Ch. 8 - Prob. 74PCh. 8 - The water needs of a small farm are to be met by...Ch. 8 - Prob. 76EPCh. 8 - A 2.4-m-diameter tank is initially filled with...Ch. 8 - A 3-m-diameter tank is initially filled with water...Ch. 8 - Reconsider Prob. 8-78. In order to drain the tank...Ch. 8 - Gasoline (p = 680 kg/m3 and v = 4.29 × 10-7 m2/s)...Ch. 8 - Prob. 81EPCh. 8 - Oil at 20 C is flowing through a vertical glass...Ch. 8 - Prob. 83PCh. 8 - A 4-in-high cylindrical tank having a...Ch. 8 - A fanner is to pump water at 70 F from a river to...Ch. 8 - A water tank tilled with solar-heated vater at 4OC...Ch. 8 - Two water reservoirs A and B are connected to each...Ch. 8 - Prob. 89PCh. 8 - A certain pail of cast iron piping of a water...Ch. 8 - Repeat Prob. 8-91 assuming pipe A has a...Ch. 8 - Prob. 93PCh. 8 - Repeat Prob. 8-93 for cast lion pipes of the same...Ch. 8 - Water is transported by gravity through a...Ch. 8 - Water to a residential area is transported at a...Ch. 8 - In large buildings, hot water in a water tank is...Ch. 8 - Prob. 99PCh. 8 - Two pipes of identical length and material are...Ch. 8 - What are the primary considerations when selecting...Ch. 8 - What is the difference between laser Doppler...Ch. 8 - Prob. 103CPCh. 8 - Prob. 104CPCh. 8 - Explain how flow rate is measured with...Ch. 8 - Prob. 106CPCh. 8 - Prob. 107CPCh. 8 - Prob. 108CPCh. 8 - A 15-L kerosene tank (p = 820 kg/m3) is filled...Ch. 8 - Prob. 110PCh. 8 - Prob. 111PCh. 8 - Prob. 112PCh. 8 - Prob. 113PCh. 8 - Prob. 114EPCh. 8 - Prob. 115EPCh. 8 - Prob. 116PCh. 8 - A Venturi meter equipped with a differential...Ch. 8 - Prob. 119PCh. 8 - Prob. 120PCh. 8 - Prob. 121PCh. 8 - Prob. 122EPCh. 8 - Prob. 123PCh. 8 - The flow rate of water at 20°C (p = 998 kg/m3 and ...Ch. 8 - Prob. 125PCh. 8 - Prob. 126PCh. 8 - Prob. 127PCh. 8 - The conical container with a thin horizontal tube...Ch. 8 - Prob. 129PCh. 8 - The compressed air requirements of a manufacturing...Ch. 8 - A house built on a riverside is to be cooled iii...Ch. 8 - The velocity profile in fully developed lamina,...Ch. 8 - Prob. 133PCh. 8 - Two pipes of identical diameter and material are...Ch. 8 - Prob. 135PCh. 8 - Shell-and-tube heat exchangers with hundred of...Ch. 8 - Water at 15 C is to be dischaged froiti a...Ch. 8 - Consider flow front a reservoir through a...Ch. 8 - A pipelme ihat Eransports oil ai 4OC at a iate of...Ch. 8 - Repeat Prob. 8-140 for hot-water flow of a...Ch. 8 - Prob. 142PCh. 8 - Prob. 145EPCh. 8 - Prob. 146EPCh. 8 - In a hydroelectric power plant. water at 20°C is...Ch. 8 - Prob. 148PCh. 8 - Prob. 152PCh. 8 - The water at 20 C in a l0-m-diameter, 2-m-high...Ch. 8 - Prob. 155PCh. 8 - Find the total volume flow rate leaving a tank...Ch. 8 - Prob. 158PCh. 8 - Water is siphoned from a reservoir open to the...Ch. 8 - It is a well-known fact that Roman aqueduct...Ch. 8 - In a piping system, what is used to control the...Ch. 8 - Prob. 163PCh. 8 - Prob. 164PCh. 8 - Prob. 165PCh. 8 - Consider laminar flow of water in a...Ch. 8 - Water at 10 C flows in a 1.2-cm-diameter pipe at a...Ch. 8 - Engine oil at 20 C flows in a 15-cm-diamcter pipe...Ch. 8 - Prob. 169PCh. 8 - Watet flows in a I 5-cm-diameter pipe a, a...Ch. 8 - The pressure drop for a given flow is determined...Ch. 8 - Prob. 172PCh. 8 - Air at 1 atm and 25 C flows in a 4-cm-diameter...Ch. 8 - Hot combustion 8ases approximated as air at I atm...Ch. 8 - Air at 1 aim and 40 C flows in a 8-cm-diameter...Ch. 8 - The valve in a piping system cause a 3.1 in head...Ch. 8 - A water flow system involves a 180 return bend...Ch. 8 - Air flows in an 8-cm-diameter, 33-m-long pipe at a...Ch. 8 - Consider a pipe that branches out into two...Ch. 8 - Prob. 182PCh. 8 - Prob. 183PCh. 8 - Prob. 184PCh. 8 - Prob. 185PCh. 8 - Prob. 186PCh. 8 - Design an experiment to measure the viscosity of...Ch. 8 - During a camping trip you notice that water is...
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
- Find the discharge in nach pipe shown in fgure. The head available at A is 20m of water and the friction factor for each pipe may be taken 0.03. 100 mm diameter, 200m length B Atmosphere 100 mm diameter, 100m length 50 mm diameterarrow_forwardWater flows thiough a horizontal pipe at o veiociy of 50 ft per secon d. Owing to the pipe gradually expanding to larger rize, the velocity decreases to 35 f1 per second, what i the differentce between the prewures at two points, one in each size of pipe ? Given : VA =(50fps Ve -35 fps 1,421.88 psf 1,165.15 psf O 1,345.11 psf 1,021.96 psf 1,236.75 psfarrow_forwarddhe low + DarucienCatculation ot (sesistance zomes Hame pumpseRue, operoting pr 3. Problems: two vessels are connected by a pipe of the diameter of d=100 mm and length of l=12 m, made of steel. Calculate the level difference H of water in the vessels. Flow rate is Q=300 m/h, temperature t=20°C. Take into account the all energy losses. Grei=3. d.!arrow_forward
- VIN/20 water is pumped from a * large tanken to a second tand 2 through a pipe system, as shown in the figure. The pump is developing on the flow. For a steady flow of 140 L/s, what must be the pressure PB in the air trapped above the water 20 kw . tank 2. The vertical 7.S pipe 40m Long. Фра=2 кра Solution Power: 20 kw Q = 140 L/S 150m 45m PB = ? h = 40m d=200mm = 0.2m M= 0.998X13 Nism OPB 6m B. E 1.42 ·lum water D=200 2 2 9uarrow_forwardThis is a fluid machine question. Water reservoir is pumped over a hill through a pipe 450 mm in diameter and a pressure of 98.08 kPa is maintained in the summit water discharge is 30 m above the reservoir. The quantity pumped is 0.50 m3/s. rrictional losses in the discharge and suction pipe of the pump is equivalent to 1.5 m head loss. The speed of the pump is 800 rpm, what amount of energy must be furnished by the pump in kW?arrow_forwardThe diameters Dº & dº piped, Venturi- meter like horizontal water flow sistem seen in the drawing is connected to a piston - cylinder system of DPⓇ piston and dp rod diameter and connected to the incoming flow pipe and the cont- racted cross section. Assuming that the ideal - no head loss flow conditions are valid ; Calculate the force F applied to the pis- ton when the average velocity and the pressure at the entrance cross-section is V and p' respectively. Dº = 10 [mm] dº = 5 [mm] " & D dp p* V -FD₂ p = 4,5 [bar] Dp = 30 [mm] dº Pw Horizontal Setup V = 5 [m/s] dp = 6 [mm]arrow_forward
- An oil is being pumped inside a pipe at rate of 5.2m/s-00. The oil density is 905 kg/m3 and the viscosity is 3.4x 10- 2 Pa' s . which pipe diameter should be used to maintain laminar flow le re <_ 2100arrow_forwardwatu enters a tube (d=6omm) ta rate of oiol ka/s with temp. of 2öc . A constant het flux of 2000 wii was applied. What rs the tube length requined to obtain an exit temp. of 8c.what is the surface temp.at the outlet of the tube, where fully daveloped conditions maybe assumed to exist -arrow_forwardA kitchen chimney, made of HINDWARE with exhaust pipe dia. of 90 cm supplies exhaust gas having flow rate of 1200 80 m3/hour. Length of exhaust pipe is 5m. Now BAJAJ Company wants to design a chimney to crater same flow rate but rectangular type with aspect ratio of 1.5. The length of exhaust pipes for both cases is assumed to be 5m. Also consider same friction factor for both the pipes as 0.182.Determine (i) the pressure drop for the HINDWARE duct. (ii) Considering the same pressure drop for the BAJAJ duct, determine its sides.arrow_forward
- oil CM=0-08372 Pa.s, S6= 0.843 is flowing from the Upper to lower reservoir at a rate of o028/s through a 15 cm & smooth pipe. Calculate the elevation of oil and the upper reservoir. S. pipe o= 15cm El OIL Gom Kc=05 go bénd El 130m oil 130marrow_forwardoil (dersity 731.37 Eg/2) ynmic Viscocitys nomic Viscocit 52 kg/ms) flous in a pipe Reynolds nunbar cf Surface rouy 66.36mm diameter with 53,44 9.48 a hness is o.02 mm and The mean 56.58m. Detemina the the leng bh pressure in loss iF the friction factor is ooous Hint 4fL v Pdr Re Ap= pghparrow_forwardLength and dia. Of pipe 1 are 2000m and 1m while the second pipe is 2000m and dia. Of 0.8m .Find the rate flow of each pipe if the total flow rate in the main pipe is 0.3 m3/s. the coefficient friction of each pipe is same and equal to 0.05. Ans.Q1= 1.906 m3/s , Q2=1.094m3/s Ex. A pipe of dia.=20cm and length 2000m is connects two reservoir having difference of water levels as 20m determine the discharge through pipe. If an additional pipe of diameter 20cm and length 1200 m is attached to the last 1200m length of the existing pipe, find the increase in the discharge. f=0.015 neglect minor losses. Ans.Q= 0.0254 m3/s , increase to discharge 0.0088m3/s Ex. Pipe of L=4000m and dia.=0.6m as shown in fig. At a distance of 1000m from the upper reservoir , a small pipe is connected to the pipe line. The water can be taken from the small pipe. Find discharge to the lower reservoir a- No water is taken from the small pipe b-100 liter/sec of water is taken from small pipe. f30.005 neglect minor…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
Physics 33 - Fluid Statics (1 of 10) Pressure in a Fluid; Author: Michel van Biezen;https://www.youtube.com/watch?v=mzjlAla3H1Q;License: Standard YouTube License, CC-BY