FLUID MECHANICS FUNDAMENTALS+APPS
4th Edition
ISBN: 2810022150991
Author: CENGEL
Publisher: MCG
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 10, Problem 102P
To determine
The expression for
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
We can model potential flow over a jellybean by using a source (Q), vortex (Γ), and sink (−Q)placed on the x axis as shown below. When combined with uniform flow (U∞), the superimposedelementary flows will model flow over a closed shape that resembles a jellybean. For the numericalparts below, use U∞ = 5m/s, Γ = 10m2/s, Q = 8m2/s, and h = 0.5m.
a) Write the complex potential, F (z), for this flow, in terms of z and the given parameters (notnumerical values).b) Write the equation for the complex velocity, w(z), again in terms of the given parameters.c) Determine the location of the stagnation points in this flow, using the given numerical values.You should find three points, with two at the leading/trailing edge of the closed shape.
We can model potential flow over a jellybean by using a source (Q), vortex (Γ), and sink (−Q)placed on the x axis as shown below. When combined with uniform flow (U∞), the superimposedelementary flows will model flow over a closed shape that resembles a jellybean. For the numericalparts below, use U∞ = 5m/s, Γ = 10m2/s, Q = 8m2/s, and h = 0.5m.
a) Write the complex potential, F (z), for this flow, in terms of z and the given parameters (notnumerical values).b) Write the equation for the complex velocity, w(z), again in terms of the given parameters.c) Determine the location of the stagnation points in this flow, using the given numerical values.You should find three points, with two at the leading/trailing edge of the closed shape.
Please show all work!!
Consider the boundary layer over a flat plate at 45° angle as shown. The exact flow
field in this configuration is described by the Falkner-Skan similarity solution with n = 1/3
(see Figure 10.8 of the textbook, the Falkner-Skan profile chart). The objective is to find the
approximate solution to this problem using the Thwaites method and calculate its error.
Ve
11/4
Assume that for this approximate solution the free stream velocity is U₂(x) =
ax" where a is an unknown constants and n = 1/3. Use the Thwaites method to find
the momentum 0/x and 8*/x displacement thicknesses as well as the friction coefficient
cf = 0.5, as functions of Re₂ = Uer/v, where is the shear stress at the wall. (No
need to interpolate the Thwaites method table values; you can pick the nearest numbers.)
Using the Falkner-Skan profile chart approximate the friction coefficient c; (by
estimating the slope of the corresponding velocity profile at the wall). How does this
value compare with your prediction in part…
Chapter 10 Solutions
FLUID MECHANICS FUNDAMENTALS+APPS
Ch. 10 - Discuss how nondimensalizsionalization of the...Ch. 10 - Prob. 2CPCh. 10 - Expalain the difference between an “exact”...Ch. 10 - Prob. 4CPCh. 10 - Prob. 5CPCh. 10 - Prob. 6CPCh. 10 - Prob. 7CPCh. 10 - A box fan sits on the floor of a very large room...Ch. 10 - Prob. 9PCh. 10 - Prob. 10P
Ch. 10 - Prob. 11PCh. 10 - In Example 9-18 we solved the Navier-Stekes...Ch. 10 - Prob. 13PCh. 10 - A flow field is simulated by a computational fluid...Ch. 10 - In Chap. 9(Example 9-15), we generated an “exact”...Ch. 10 - Prob. 16CPCh. 10 - Prob. 17CPCh. 10 - A person drops 3 aluminum balls of diameters 2 mm,...Ch. 10 - Prob. 19PCh. 10 - Prob. 20PCh. 10 - Prob. 21PCh. 10 - Prob. 22PCh. 10 - Prob. 23PCh. 10 - Prob. 24PCh. 10 - Prob. 25PCh. 10 - Prob. 26PCh. 10 - Prob. 27PCh. 10 - Consider again the slipper-pad bearing of Prob....Ch. 10 - Consider again the slipper the slipper-pad bearing...Ch. 10 - Prob. 30PCh. 10 - Prob. 31PCh. 10 - Prob. 32PCh. 10 - Prob. 33PCh. 10 - Prob. 34EPCh. 10 - Discuss what happens when oil temperature...Ch. 10 - Prob. 36PCh. 10 - Prob. 38PCh. 10 - Prob. 39CPCh. 10 - Prob. 40CPCh. 10 - Prob. 41PCh. 10 - Prob. 42PCh. 10 - Prob. 43PCh. 10 - Prob. 44PCh. 10 - Prob. 45PCh. 10 - Prob. 46PCh. 10 - Prob. 47PCh. 10 - Prob. 48PCh. 10 -
Ch. 10 - Prob. 50CPCh. 10 - Consider the flow field produced by a hair dayer...Ch. 10 - In an irrotational region of flow, the velocity...Ch. 10 -
Ch. 10 - Prob. 54CPCh. 10 - Prob. 55PCh. 10 - Prob. 56PCh. 10 - Consider the following steady, two-dimensional,...Ch. 10 - Prob. 58PCh. 10 - Consider the following steady, two-dimensional,...Ch. 10 - Prob. 60PCh. 10 - Consider a steady, two-dimensional,...Ch. 10 -
Ch. 10 - Prob. 63PCh. 10 - Prob. 64PCh. 10 - Prob. 65PCh. 10 - In an irrotational region of flow, we wtite the...Ch. 10 - Prob. 67PCh. 10 - Prob. 68PCh. 10 - Water at atmospheric pressure and temperature...Ch. 10 - The stream function for steady, incompressible,...Ch. 10 -
Ch. 10 - We usually think of boundary layers as occurring...Ch. 10 - Prob. 73CPCh. 10 - Prob. 74CPCh. 10 - Prob. 75CPCh. 10 - Prob. 76CPCh. 10 - Prob. 77CPCh. 10 - Prob. 78CPCh. 10 - Prob. 79CPCh. 10 - Prob. 80CPCh. 10 - Prob. 81CPCh. 10 -
Ch. 10 - On a hot day (T=30C) , a truck moves along the...Ch. 10 - A boat moves through water (T=40F) .18.0 mi/h. A...Ch. 10 - Air flows parallel to a speed limit sign along the...Ch. 10 - Air flows through the test section of a small wind...Ch. 10 - Prob. 87EPCh. 10 - Consider the Blasius solution for a laminar flat...Ch. 10 - Prob. 89PCh. 10 - A laminar flow wind tunnel has a test is 30cm in...Ch. 10 - Repeat the calculation of Prob. 10-90, except for...Ch. 10 - Prob. 92PCh. 10 - Prob. 93EPCh. 10 - Prob. 94EPCh. 10 - In order to avoid boundary laver interference,...Ch. 10 - The stramwise velocity component of steady,...Ch. 10 - For the linear approximation of Prob. 10-97, use...Ch. 10 - Prob. 99PCh. 10 - One dimension of a rectangular fiat place is twice...Ch. 10 - Prob. 101PCh. 10 - Prob. 102PCh. 10 - Prob. 103PCh. 10 - Static pressure P is measured at two locations...Ch. 10 - Prob. 105PCh. 10 - For each statement, choose whether the statement...Ch. 10 - Prob. 107PCh. 10 - Calculate the nine components of the viscous...Ch. 10 - In this chapter, we discuss the line vortex (Fig....Ch. 10 - Calculate the nine components of the viscous...Ch. 10 - Prob. 111PCh. 10 - The streamwise velocity component of a steady...Ch. 10 - For the sine wave approximation of Prob. 10-112,...Ch. 10 - Prob. 115PCh. 10 - Suppose the vertical pipe of prob. 10-115 is now...Ch. 10 - Which choice is not a scaling parameter used to o...Ch. 10 - Prob. 118PCh. 10 - Which dimensionless parameter does not appear m...Ch. 10 - Prob. 120PCh. 10 - Prob. 121PCh. 10 - Prob. 122PCh. 10 - Prob. 123PCh. 10 - Prob. 124PCh. 10 - Prob. 125PCh. 10 - Prob. 126PCh. 10 - Prob. 127PCh. 10 - Prob. 128PCh. 10 - Prob. 129PCh. 10 - Prob. 130PCh. 10 - Prob. 131PCh. 10 - Prob. 132PCh. 10 - Prob. 133PCh. 10 - Prob. 134PCh. 10 - Prob. 135PCh. 10 - Prob. 136PCh. 10 - Prob. 137PCh. 10 - Prob. 138P
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
- As4arrow_forwardConverging duct flow is modeled by the steady, two- dimensional velocity field V = (u, v) = (U₁ + bx) i-by. For the case in which Ug = 3.56 ft/s and b = 7.66 s¯¹, plot several streamlines from x = 0 ft to 5 ft and y=-2 ft to 2 ft. Be sure to show the direction of the streamlines. (Please upload you response/solution using the controls provided below.)arrow_forwardAn equation for the velocity for a 2D planar converging nozzle is Uy u =U1+ w=0 L Where U is the speed of the flow entering into the nozzle, and L is the length. Determine if these satisfy the continuity equation. Write the Navier-Stokes equations in x and y directions, simplify them appropriately, and integrate to determine the pressure distribution P(x.y) in the nozzle. Assume that at x = 0, y = 0, the pressure is a known value, P.arrow_forward
- Please answer with detailarrow_forwardRain water is flowing through an inclined plane under gravity as shown in figure. A thin layer of thickness h is formed over the plate. An upward wind flow that exerts a shear stress on the upper surface (y = h) of the liquid layer. The wind flow tends to push the rain layer upward while gravity pulls the layer downward Write continuity and and Navier-Stokes equations to model this flow field. (Assume the flow is fully developed) Obtain expressions for the liquid velocity profile, the shear stress distribution, the volume flow rate, and the the expression for the thickness h of the liquid layer for which there is no net volume flow along the roofarrow_forwardQ4) Define the boundary layer, then find the thickness of boundary layer, shear stress, drag force and coefficiet of drag in terms of Re for the velocity profile of laminar boundary layer u/U=4(y/8)-6(y/8)5. Calcate the boundary layer thickness and drag force if the air flows over a sharp edged flat plate 1m long and 0.5m wide at a velocity 0.9m/s, the air density 1.23 kg/m³ and the kinematic viscosity is 1.46*10-5 m/s².arrow_forward
- Flow over a sphere is given by the superposition of uniform flow and 3D doublet flow. In cylindrical coordinates the flow resembles that pictured below. See Lecture Pack 3 for more information on vector operations in polar and cylindrical coordinates. Uniform flow in the z direction is o = Uz. Doublet flow is U„R³z + z2 where R is the radius of the sphere. 1. Calculate ur, uo, and uz as functions of r and z for superposed uniform and doublet flow. 2. Show thatr 0, z ±R are stagnation points.arrow_forwardProblem 3. Numerical results for the Blasius solution ✓ for laminar boundary layer flow can be obtained using a Matlab program on my ME 347 Canvas page. (a) Derive the equation for the dimensionless y-component of velocity, v/U, as a function of the similarity parameter (or dimensionless location), n = y√√U/(vx), the dimensionless stream function, f(n) = 4/√Uv x, and the Reynolds number, Re = Ux/v. (b) From the Blasius solution results, calculate the Reynolds number that corresponds to a boundary layer thickness of 8 = 5.0 mm at x = 0.50 m. (c) Plot v/U (on the x-axis) versus y/d = n/5.0 by editing the Matlab code above to include the needed calculations (a tutorial that describes the code above and indicates how to edit the code is available here). Add to your plot the polynomial profile from Homework 2, Problem 1 which is an approximate fit to the Blasius solution. NOTE: Be careful to differentiate between lowercase for the y-component of velocity and the Greek letter v = μ/p (called…arrow_forwardMany new factory stacks were built in Birmgham, uk. The Stacks Jare sources of pollutant emission (mostly, Sulfur dioxide S0₂). Winter wind is practically time- independent over Nothern Europe SCU.R and Scandinanal and its radical and angular r and o velocity components in polar coordinates are given by the following expressions: V₁ = 22.39 V₁ = -1 r ช Assume that pollutants do not diffuse relative to air. calculate to which one of the three Gurpedo capitals (oslo in Norway; (opehagen in Denmark Stockholm in Sweden Birimngham pollutants will be brought by wind? See the attached map where Birmigham is denoted by B, 0510-by U, Copenhagen - by C and stockholm - by S and their carfeszan are listed y 13-41 13 8 3 O 1 3 13 r -TC 10 11 2 1 I 15 Vo Vy นarrow_forward
- Based on the following chart, do the following: (a) use arrow at A or B and a curl at X to sketch the initial vorticity induced by the u wind, (b) sketch the final vorticity of the initial vorticity by the w wind by drawing AB, (c) is positive or negative vertical vorticity generated? , and (d) what is the process of this vorticity change called?arrow_forwardShow the step by step solution and explanation on how we arrive in the answerarrow_forwardQ.3b Prove that the pressure 'p' is independent of the transverse coordinate 'y' in the boundary layer and hence show that the boundary layer equation for a flow over flat plate is given by, a² u ди ди u +v== 9 əx Əy Əy² where v is the kinematic viscosity of the fluid (may use 'order of magnitude' approach).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
8.01x - Lect 27 - Fluid Mechanics, Hydrostatics, Pascal's Principle, Atmosph. Pressure; Author: Lectures by Walter Lewin. They will make you ♥ Physics.;https://www.youtube.com/watch?v=O_HQklhIlwQ;License: Standard YouTube License, CC-BY
Dynamics of Fluid Flow - Introduction; Author: Tutorials Point (India) Ltd.;https://www.youtube.com/watch?v=djx9jlkYAt4;License: Standard Youtube License