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
Concept explainers
Question
Chapter 8, Problem 68CP
To determine
The effect in time while filling the bucket with water when nozzle is attached to hose.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
"The capacity of a certain pump is 9780 gallons per hour with a capacity of 73.47%. A city uses this pump to extract water from a
water supply from a body of water where in the intake is 11.3 ft below the surface of the body of water. A 3-in S40 is used to
transfer the water through a pipe with a total length of 7839 ft having a total friction loss of 234 (ft-Ibf)/lbm. Given that the cost
electrical power is 10.1 cents/kWh, what is the hourly pumping cost in cents per hour? Note that in this problem, the inlet to the
pump is 24.5 ft above the surface of the body of water while the water level in the tank discharge is always 336.9 ft above the pump
discharge."
Which fluid requires a larger pump to
deliver the same fluid velocity through
the same piping system at room
temperature water or engine oil? Explain
A Lassonde Startup Company aims to expand its pump business into rural areas, where accessing
clean water from underground wells can be challenging. Often, families struggle to extract water
manually from the wells, making it difficult for them to meet their water needs. To address this
issue, the marketing team of this Startup Company plans to promote their new centrifugal pumps,
which can be installed in wells, making clean water more easily accessible to the local community.
Additionally, this initiative will help raise awareness about their company within the region.
In the new model of the pump, water leaves the impeller with a velocity of 25 m/s and an
acceleration of 30 m/s², measured relative to the impeller along the blade line AB. The impeller
rotates at a constant angular velocity ofw = 15 rad/s.
30°
a) We need to determine the velocity and acceleration of a water particle at point A as it leaves
the impeller at the given instant.
(m/s)
100
200
0.3 m
b) Shallow wells, dug…
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
- A Pelton wheel working under a head of 500m produces 13MW at a speed of 430rpm. If the velocity of the wheel is 0.46 the velocity of the jet and the hydraulic efficiency of the wheel is 85% with a coefficient of velocity of 0.98, determine the following: Discharge of the turbine Diameter of the wheel Diameter of the nozzlearrow_forwardWhat are the key factors that affect the performance of a centrifugal pump in a fluid flow system, and how can these factors be optimized to enhance the overall efficiency of the pump?arrow_forward6. Water is pumped to a storage tank from a pool by a centrifugal pump. The elevation difference between the pool and the storage tank is 60 m. The storage tank and the pool are open to atmosphere. 50 meters of 6 in Sc 40 steel pipe is used between pool and pump. After the pump 6 in Sc 40 pipe with a length of 22 m is suddenly contracted to 4 in Sc 40 pipe, that is 70 m. The flow rate of water is 2.5 m/min and the temperature is 20°C. If the pump efficiency is 0.6 and the cost of electrical energy is 0.40 TL/kWh,calculate daily cost of electricity used for this system. 2m +in Sc 40 70m Open gate valve Storage tank 60m 22 m 2m Pool Open gate valve 6 In Sc 40 6 in Sc 40 50m pumparrow_forward
- Water is being delivered by a pump at 400 LPM through a 3 in ID pipe. A 3 x 2 reducer was fitted to increase the velocity. What will be the difference in the average velocity, in m/s, in the 3 in and 2 in ID pipe? 3.65 a. 1.83 b. 2.42 C. d. Answer is not among the choicesarrow_forwardWhat are the frictional losses to be considered when calculating power consumption of a pump under operation?arrow_forwardWater enters the pump of a steam power plant at 15 kPa and 50°C at a rate of 0.15 m3 /s. The diameter of the pipe at the pump inlet is 0.25 m. What is the net positive suction head (NPSH) at the pump inlet? (a) 1.70 m (b) 1.49 m (c) 1.26 m (d) 0.893 m (e) 0.746 marrow_forward
- kindly help me with this problems INSTRUCTIONS: Solve the problems neatly and systematically. SUse free-floating decimals in all your calculations and in expressing your answers. Box your final answers. 1. A water from Agno River is pumped using a submerged pump at an efficiency of 78% that is discharged to aswimming pool in Itogon which has a free surface of 30 m above the Agno River water level. The pipe that wasused has a diameter of 7 cm on the suction line and 5 cm on the discharge line from the pump. If the powerrequirement of the pump is 5 kW assuming that the elevation difference between the pump inlet and outletand the effect of the kinetic energy correction factors are negligible, calculate for the followinga) Power requirement by the pump in kWb) Pressure difference across the pumpc) Pumping cost/day(24 hour) if the electricity cost is ₱2.00/kW-hrarrow_forwardhello, i have a question with an answer already given, Please help me in finding its solution since i need it to properly review the example. Thank you very much Question : Determine the power required (Watts) to drive a reciprocating pump running at 1 rps and discharges oil (ρ = 850 kg/m3) at a rate of 375.3 gpm. The bore and stroke is 250 mm and 500 mm respectively. The total head developed is 27 m. Round off your answer to 2 decimal places.Answer: 5525.75arrow_forwardA cooling water pump is operating at a speed of 1800rpm. Its flow rate is 1800L/minute at a head of 14.4m. The power of the pump are 45kW and 54Kw. (a) Determine the pump flow rate (b) Determine the pump head. (c) The power required if the pump speed is increased to 3600rpm.arrow_forward
- An axial-flow pump is designed to deliver water at a rate of 0.90 m3/s running at 620 rpm. Determine the available head, power, diameter and NPSH required for the pump at the maximum efficiency which is 75% . At maximum efficiency, the discharge coefficient, power coefficient, head coefficient and NPSH coefficient are given to be 0.048, 0.0012, 0.018 and 0.023 respectively. Take density of water to be 1000 kg/m3arrow_forwardThree pumps are connected in series. According to pump performance curves, the free delivery of each pump is as follows: Pump 1: 1600 L/min Pump 2: 2200 L/min Pump 3: 2800 L/min If the flow rate for this pump system is 2500 L/min, which pump(s) should be shut off? (a) Pump 1 (b) Pump 2 (c) Pump 3 (d) Pumps 1 and 2 (e) Pumps 2 and 3arrow_forwardExplain and Plot the process why the Height(H) arrive in meter(m) unit and the Velocity of water arrive in meter per second (m/s) unit. "A boiler feed pump has a suction enthalpy of 2500 KJ/kg and exit of 2505KJ/kg"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
Hydronics Step by Step; Author: Taco Comfort Solutions;https://www.youtube.com/watch?v=-XGNl9kppR8;License: Standard Youtube License