Fox And Mcdonald's Introduction To Fluid Mechanics
9th Edition
ISBN: 9781118921876
Author: Pritchard, Philip J.; Leylegian, John C.; Bhaskaran, Rajesh
Publisher: WILEY
expand_more
expand_more
format_list_bulleted
Textbook Question
Chapter 2, Problem 43P
Crude oil at 20°C fills the space between two concentric cylinders 250 mm high and with diameters of 150 mm and 156 mm. What torque is required to rotate the inner cylinder at 12 r/min, the outer cylinder rernaining stationary?
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Q1 A smooth cylinder of 50.1 mm inside diameter and
150 a long is placed with its axis vertical. If the clear-
ance space is entirely filled with oil of viscosity 2.5 poise,
calculate the force to push a shaft 50 mm diameter through
the cylinder with a velocityof 0.8 m/sec.
klindly give the complete solution where the ans. is 5.87 ft
A 150-mm diameter vertical cylinder rotates concentrically inside another cylinder of 151-mm diameter. Both cylinders are 250-mm in height. The space between the cylinders is filled with a liquid with viscosity of 10 poise. Determine the torque required to rotate the inner cylinder at 100-rpm in N-m.
Chapter 2 Solutions
Fox And Mcdonald's Introduction To Fluid Mechanics
Ch. 2 - For the velocity fields given below, determine:...Ch. 2 - For the velocity fields given below, determine:...Ch. 2 - A viscous liquid is sheared between two parallel...Ch. 2 - For the velocity field V=Ax2yi+Bxy2j, where A = 2...Ch. 2 - A fluid flow has the following velocity...Ch. 2 - When an incompressible, nonviscous fluid flows...Ch. 2 - For the free vortex flow the velocities are t =...Ch. 2 - For the forced vortex flow the velocities are t =...Ch. 2 - A velocity field is specified as V=axyi+by2j,...Ch. 2 - A velocity field is given by V=ax3i+bxy3j, where a...
Ch. 2 - The velocity for a steady, incompressible flow in...Ch. 2 - The flow field for an atmospheric flow is given by...Ch. 2 - For the velocity field V=AxiAyj,, where A = 2s 1....Ch. 2 - A velocity field in polar coordinates is given...Ch. 2 - The flow of air near the Earths surface is...Ch. 2 - A velocity field is given by V=aytibxj, where a =...Ch. 2 - Air flows downward toward an infinitely wide...Ch. 2 - Consider the flow described by the velocity field...Ch. 2 - Consider the velocity field V = axi + by(1 + ct)...Ch. 2 - Consider the flow field given in Eulerian...Ch. 2 - A velocity field is given by V=axti+byj, where A =...Ch. 2 - Consider the garden hose of Fig. 2.5. Suppose the...Ch. 2 - Consider the velocity field of Problem 2.18. Plot...Ch. 2 - Streaklines are traced out by neutrally buoyant...Ch. 2 - Consider the flow field V=axti+bj, where a = 1/s2...Ch. 2 - A flow is described by velocity field V=ay2i+bj,...Ch. 2 - Tiny hydrogen bubbles are being used as tracers to...Ch. 2 - A flow is described by velocity field V=ai+bxj,...Ch. 2 - A flow is described by velocity field V=ayi+btj,...Ch. 2 - A flow is described by velocity field V=ati+bj,...Ch. 2 - The variation with temperature of the viscosity of...Ch. 2 - The variation with temperature of the viscosity of...Ch. 2 - Some experimental data for the viscosity of helium...Ch. 2 - The velocity distribution for laminar flow between...Ch. 2 - What is the ratio between the viscosities of air...Ch. 2 - Calculate velocity gradients and shear stress for...Ch. 2 - A very large thin plate is centered in a gap of...Ch. 2 - A female freestyle ice skater, weighing 100 lbf,...Ch. 2 - A block of mass 10 kg and measuring 250 mm on each...Ch. 2 - A 73-mm-diameter aluminum (SG = 2.64) piston of...Ch. 2 - A vertical gap 25 mm wide of infinite extent...Ch. 2 - A cylinder 8 in. in diameter and 3 ft long is...Ch. 2 - Crude oil at 20C fills the space between two...Ch. 2 - The piston in Problem 2.40 is traveling at...Ch. 2 - A block of mass M slides on a thin film of oil....Ch. 2 - A block 0.1 m square, with 5 kg mass, slides down...Ch. 2 - A torque of 4 N m is required to rotate the...Ch. 2 - A circular disk of diameter d is slowly rotated in...Ch. 2 - The fluid drive shown transmits a torque T for...Ch. 2 - A block that is a mm square slides across a flat...Ch. 2 - In a food-processing plant, honey is pumped...Ch. 2 - SAE 10W-30 oil at 100C is pumped through a tube L...Ch. 2 - The lubricant has a kinematic viscosity of 2:8105...Ch. 2 - Calculate the approximate viscosity of the oil....Ch. 2 - Calculate the approximate power lost in friction...Ch. 2 - Fluids of viscosities 1 = 0.1 Ns/m2 and 2 = 0.15...Ch. 2 - A concentric cylinder viscometer may be formed by...Ch. 2 - A concentric cylinder viscometer is driven by a...Ch. 2 - A shaft with outside diameter of 18 mm turns at 20...Ch. 2 - A shock-free coupling for a low-power mechanical...Ch. 2 - A proposal has been made to use a pair of parallel...Ch. 2 - The cone and plate viscometer shown is an...Ch. 2 - A viscometer is used to measure the viscosity of a...Ch. 2 - A concentric-cylinder viscometer is shown. Viscous...Ch. 2 - Design a concentric-cylinder viscometer to measure...Ch. 2 - A cross section of a rotating bearing is shown....Ch. 2 - Small gas bubbles form in soda when a bottle or...Ch. 2 - You intend to gently place several steel needles...Ch. 2 - According to Folsom [6], the capillary rise h...Ch. 2 - Calculate and plot the maximum capillary rise of...Ch. 2 - Calculate the maximum capillary rise of water...Ch. 2 - Calculate the maximum capillary depression of...Ch. 2 - Water usually is assumed to be incompressible when...Ch. 2 - The viscous boundary layer velocity profile shown...Ch. 2 - In a food industry process, carbon tetrachloride...Ch. 2 - What is the Reynolds number of water at 20C...Ch. 2 - A supersonic aircraft travels at 2700 km/hr at an...Ch. 2 - SAE 30 oil at 100C flows through a 12-mm-diameter...Ch. 2 - A seaplane is flying at 100 mph through air at...Ch. 2 - An airliner is cruising at an altitude of 5.5 km...
Additional Engineering Textbook Solutions
Find more solutions based on key concepts
The strain at point A on the bracket has components x = 300(106), y = 550(106), xy = 650(106), z = 0, Determine...
Mechanics of Materials (10th Edition)
Do the previous problem if the water is heated to the boiling point at 200 kPa.
Fundamentals Of Thermodynamics
1.1 What is the difference between an atom and a molecule? A molecule and a crystal?
Manufacturing Engineering & Technology
What are some of the structure and property modifications that can occur in welding heat-affected zones
Degarmo's Materials And Processes In Manufacturing
4.20 Calculate the reactions at A and B for the beam shown. Neglect the weight of the beam.
Applied Statics and Strength of Materials (6th Edition)
Calculate the moment MO of the 250-N force about the base point O of the robot.
Engineering Mechanics: Statics
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
- plz help me with this one , i would appreciate it if you can help me now. A piston with a diameter of 0.8 m and width of L=0.6 m rotates with 6 rad/s inside a cylinder that has a diameter of 1 m that filled with oil that has a viscosity of 8x10-3 N.s/m2 What is the shear force that acts on the circumference of the piston (N)? Assume the variation in velocity of the oil is linear.arrow_forward2.23- Water is at 20 °C and the pressure is lowered until boiling is observed. What is the pressure? from Engineering fluid mechanics 11tharrow_forwardAnswer the following. A: When the pressure of liquid is increased from 3.5 MN/m² to 6.5 MN/m² its volume is found to decrease by (0.08) percent. What is the bulk modulus of elasticity of the liquid? B: An open cylindrical tank (1.2m) in diameter and (1.8m) deep is filled with water and rotated about its central axis at (60 r.p.m). How much liquid is spill and how deep of the water at the central axis.arrow_forward
- Based on the figure, calculate the magnitude of the horizontal and vertical components of the force that the fluid exerts on the curved surface. Also calculate the magnitude of the resulting force and its direction. The surface measures 1.50 m in length. (WORK LIKE NEW PLEASE)arrow_forwardfind the answer Gas in enclosed cylinder with a weighted piston as the top boundary. The gas us heated and expands from a volume of 0.04 m^3 to 0.10 m^3. The pressure varies such that PV=consant, and the initial pressure is 200 kPa. Calculate the work done by the system in kiloJoules? Write the answer up to TWO DECIMAL PLACES.arrow_forwardIn order to predict the behavior of a small oil pump, tests are to be made on a model using air. The oil pump is to be driven by a 1/20 hp motor at 1800 rpm and a ¼ hp motor is available to drive the air pump at 600 rpm. Using the SG of oil at 0.92 and the density of air constant at 0.00238 slug/ft3, what size model should be built?arrow_forward
- as shown in figure below ,find the required force to pull a tin plate at plate a distance of 8.4mm from one plate.assume linear velocity distrarrow_forward8. A horizontal axis wind turbine has its blades rotating on an axis uiz-1 to the ground. Page 1 of 2arrow_forwardA closed cylinder 3 m in diameter and 2.5 m high is filled with water. Assuming the metal of the cylinder is 5mm thick with an ultimate strength of 150 MPa. Compute its angular velocity if it is rotated about its vertical axis to the point of bursting.arrow_forward
- derive an expression for fluid pressure at point Aarrow_forwardTwo plates are placed at a distance of 15 mm apart. The lower plate is fixed while the upper plate having surface area of 1.0 m^2 is pulled at 0.30 m/s. Whar is the force in Newton required to the speed if the fluid separating them is having viscosity of 1.5 poise?arrow_forwardA Cylinder containing oil of specific gravity 0.85 is rotated about its vertical axis with a constant angular velocity. Pressure measurements indicate equal pressures at two points 1 and 2 which are respectively at 0.5 m and 0.75 m radial distance from the axis of rotation. If point 2 lies 1.0 m above the point 1, calculate the rotational speed in revolutions per minutearrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- International Edition---engineering Mechanics: St...Mechanical EngineeringISBN:9781305501607Author:Andrew Pytel And Jaan KiusalaasPublisher:CENGAGE L
International Edition---engineering Mechanics: St...
Mechanical Engineering
ISBN:9781305501607
Author:Andrew Pytel And Jaan Kiusalaas
Publisher:CENGAGE L
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