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
Videos
Textbook Question
Chapter 1, Problem 5P
In a combustion process, gasoline particles are to be dropped in air at 200°F. The particles must drop at least 10 in. in 1 s. Find the diameter d of droplets required for this. (The drag on these particles is given by FD = 3πμ Vd, where V is the particle speed and μ is the air viscosity. To solve this problem, use Excel’s Goal Seek.)
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
The pilot of a Boeing 767 determines that a total of 22,300 kilograms of jet fuel is needed to fly from Montreal to Edmonton. A floatstick check finds that there is 11,133 litres of fuel already in the tanks. How much fuel, expressed in litres, must be added to the tanks?
The density of jet fuel varies with temperature. For the prevailing conditions take the density of the jet fuel to be 0.803 kg/L or equivalently 1.77 lb/L.
An air hockey puck has a mass of 50 g and is 9 cm in diameter. When placed on the air table, a 40 degrees C air film, of thickness 0.12 mm-thickness forms under the puck.
a) Using Sutherlands law, what is the viscosity of the air?
b) If the puck is travelling at 10 m/s, assuming a linear velocity profile, what is the force on the puck due to shear stress?
c)What is the terminal velocity of the puck?
A nuclear reactor is cooled by liquid sodium. The liquid sodium has the following properties: dynamic viscosity = 0.41 mPa·s, specific heat capacity = 1.2 kJ/kgK, thermal conductivity 82 W/mK. Which of the following statements is correct for this scenario? please explain
A The thermal boundary layer is thicker than the hydraulic boundary layer.
B Heat is transferred through the fluid more easily than momentum.
C The velocity varies significantly from the surface to the thickness of the thermal boundary layer.
D The hydraulic boundary layer is thicker than the thermal boundary layer.
Chapter 1 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
Ch. 1 - A number of common substances are Some of these...Ch. 1 - Give a word statement of each of the five basic...Ch. 1 - The barrel of a bicycle tire pump becomes quite...Ch. 1 - Very small particles moving in fluids are known to...Ch. 1 - In a combustion process, gasoline particles are to...Ch. 1 - In a pollution control experiment, minute solid...Ch. 1 - A rocket payload with a weight on earth of 2000 lb...Ch. 1 - A cubic metre of air at 101 kPa absolute and 15C...Ch. 1 - Calculate the specific weight, specific volume,...Ch. 1 - For Problem 1.6, find the distance the particles...
Ch. 1 - A sky diver with a mass of 70 kg jumps from an...Ch. 1 - The English perfected the longbow as a weapon...Ch. 1 - For each quantity listed, indicate dimensions...Ch. 1 - The density of a sample of sea water is 1.99...Ch. 1 - A pump is rated at 50 hp. What is the rating in kW...Ch. 1 - A fluid occupying 3.2m3 has a mass of 4 Mg....Ch. 1 - If a power plant is rated at 2000 MW output and...Ch. 1 - For each quantity listed, indicate dimensions...Ch. 1 - Derive the following conversion factors: (a)...Ch. 1 - Express the following in SI units: (a) 5 acreft...Ch. 1 - Express the following in SI units: (a) 100...Ch. 1 - Express the following in BG units: (a) 50 m2 (b)...Ch. 1 - While youre waiting for the ribs to cook, you muse...Ch. 1 - Derive the following conversion factors: (a)...Ch. 1 - The kilogram force is commonly used in Europe as a...Ch. 1 - From thermodynamics, we know that the coefficient...Ch. 1 - The maximum theoretical flow rate (slug/s) through...Ch. 1 - The mean free path of a molecule of gas is the...Ch. 1 - A container weighs 3.5 lbf when empty. When filled...Ch. 1 - A parameter that is often used in describing pump...Ch. 1 - Calculate the density of standard air in a...Ch. 1 - The mass of the standard American golf ball is...Ch. 1 - A can of pet food has the following internal...Ch. 1 - The mass flow rate in a water flow system...Ch. 1 - The mass flow rate of water in a tube is measured...Ch. 1 - The mass of the standard British golf ball is 45.9...Ch. 1 - From Appendix A, the viscosity (Ns/m2) of water at...Ch. 1 - An enthusiast magazine publishes data from its...Ch. 1 - The height of a building may be estimated by...Ch. 1 - An American golf ball is described in Problem 1.32...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
Determine the resultant of the two forces and express the result as a Cartesian vector.
INTERNATIONAL EDITION---Engineering Mechanics: Statics, 14th edition (SI unit)
If the box has x components of velocity and acceleration of vx = 3 m/s and ax = 1.5 m/s2 at x = 5 m, determine ...
Engineering Mechanics: Dynamics (14th Edition)
Figure 8.12shows a portion of a fire protection system in which a pump draws water at 60 F from a reservoir and...
Applied Fluid Mechanics (7th Edition)
A Btu-meter is a device that measures water flow rate and the temperature difference between the water entering...
Heating Ventilating and Air Conditioning: Analysis and Design
The three A-36 steel wires each have a diameter of 2 mm and unloaded lengths of LAC = 1.60 m and LAB = LAD = 2....
Mechanics of Materials (10th Edition)
The expression for the rate at which useful heat is collected per unit area of the collector and also find the ...
Introduction to Heat Transfer
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
- Resistance R to the motion of a completely submerged body is given by R = ρV2 L2 φ , where ρ and ν are density and kinematic viscosity of the fluid while L is the length of the body and V is the velocity of flow. If resistance of a one-sixth scale airship model when tested in water at 10 m/s is 230 N, what will be the resistance in air of the airship at the corresponding speed? Kinematic viscosity of air is 13 times that of water and density of water is 810 times of air.arrow_forwardA spherical dust particle of density ρp and radius R falls at a constant velocity V in an atmosphere of density ρa under its own weight. Find V if ρp/ρa = 1000, R = 0.5 mm, and the drag coefficient CD = F/(0.5ρaV2πR2 ) = 1, where F is the drag force acting on the sphere. Ignore the buoyancy force.arrow_forwardA piston 796 mm diameter and 200 mm long works in a cylinder of 800 mm diameter. If the annular space is filled with lubricating oil of viscosity 5 centipoise, calculate the speed of descent in m/s of the piston in vertical position. The weight of the piston and the axial load are 9.81N. (Choices: a) 6.12 b) 7.84 c) 10.56 d) 8.24)arrow_forward
- Calculate the drag force (unit: N) of a sphere particle in 20°C water. Know the diameter of the particle = 1 cm; the Reynolds number of water = 1; dynamic viscosity of 20°C water = 0.001 kg/ms; velocity of the particle = 0.02 m/s.arrow_forwardA certain lake is proposed as a landing area for large jet aircraft. The touchdown speed of 100 mph upon contact with the water is to be reduced to 20 mph in a distance of 1500 ft. If the deceleration is proportional to the square of the velocity of the aircraft throug the water, a=-kv^2 , find the value of the design parameter k . This parameter serves as a measure of the size and shape of the landing gears vanes that plow through the water. Also, determine the time elapsed during the spedified interval. (1 mile=5280 ft)arrow_forwardA laminar boundary layer is observed to grow on a flat plate such that the pressure is constant everywhere. If the boundary layer velocity profile is given by: where u is the velocity at a distance y from the surface, δ is the boundary layer thickness and Ue is the freestream velocity. (a) Show that θ/δ = 0.139, where θ is the momentum thickness. (b) Find the viscous stress on the plate in terms of the viscosity, the boundary layer thickness, and the freestream velocity.arrow_forward
- Oil (dynamic viscosity) between a block of mass M (5 kg) and the substrate(μ = 1.6 Pa.s), oil film thickness (h = 0.7 mm)). Block base surfaceIts area is given as A = 28 cm2. Block m (1kg weight) with a wire ropeIt depends on the mass. At time t = 0, mass m is released. According to these data;a) Find the viscous forces when the block moves with V = 1 m / s velocity.b) Derive an equation for the block velocity as a function of time (t).c) Plot the velocity-time variation for t = 0 and t = t.arrow_forwardA low-altitude meteorological research balloon, temperature sensor, and radio transmitter together weigh 3.1 lb. When inflated with helium, the ballon is spherical with a diameter size of 5.5 feet. The volume of the trasmitter can be neglected when compared to the ballon's size. The ballon is released from ground level and quickly reaches its terminal ascent velocity. Neglecting variations in the atmosphere's density, how long does it take the ballon to reach an altitude of 1000ft?arrow_forwardAn important parameter in certain types of fluid flow problems when a free surface is present is the Froude number (Fr), which can be expressed in equation form as (Fr) = [pv^2/Lw]^1/2 where p is the density of the fluid, v is a velocity, L is a length, and w is the specific weight of the fluid. Show that the Froude number is dimensionlessarrow_forward
- How much energy would it take to raise a can of soda (m = 350 grams) to average cruising altitude (35,000 ft)? Our textbook states that a gallon of gasoline contains 1.2×108 Joules of energy. Assuming 100% efficiency, how many gallons of gasoline would it take to raise the can of soda to 35,000 ft? A calorie is the amount of energy needed to raise the temperature of 1 gram of water by 1 Celsius degree (4.186 J). A nutritional Calorie is actually 1000 calories (1 Cal = 1 kcal). How many Calories of energy does it take to raise the can of soda to cruising altitude? Given that a can of Coke is about 140 Calories, how many cans of coke does it take to raise a can of coke to cruising altitude?arrow_forwardThe spherical particle of unit density falls freely in air with a constant velocity of 0.50 cm/sec. The viscosity coeffiecient of the air 0.000180 poise. Using Stoke’s Law, find the radius of the particle.arrow_forwardA right circular cylinder volume υ is to be calculated fromthe measured base radius R and height H . If the uncertaintyin R is 2 percent and the uncertainty in H is 3 percent, estimatethe overall uncertainty in the calculated volume.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
Unit Conversion the Easy Way (Dimensional Analysis); Author: ketzbook;https://www.youtube.com/watch?v=HRe1mire4Gc;License: Standard YouTube License, CC-BY