fluid_mechanics

524 Chapter 9 ■ Flow over Immersed Bodies
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National Research Council of Canada, Aeronautical Report LR-557, 1972.
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Scientific American, Vol. 249, No. 6, 1983.
21. Abbott, I. H., and Von Doenhoff, A. E., Theory of Wing Sections, Dover Publications, New York,
1959.
22. MacReady, P. B., “Flight on 0.33 Horsepower: The Gossamer Condor,” Proc. AIAA 14th Annual Meeting
1Paper No. 78-3082, Washington, DC, 1978.
23. Goldstein, S., Modern Developments in Fluid Dynamics, Oxford Press, London, 1938.
24. Achenbach, E., Distribution of Local Pressure and Skin Friction around a Circular Cylinder in Cross-
Flow up to Re 5 10 6 , Journal of Fluid Mechanics, Vol. 34, Pt. 4, 1968.
25. Inui, T., Wave-Making Resistance of Ships, Transactions of the Society of Naval Architects and Marine
Engineers, Vol. 70, 1962.
26. Sovran, G., et al. 1ed.2, Aerodynamic Drag Mechanisms of Bluff Bodies and Road Vehicles, Plenum
Press, New York, 1978.
27. Abbott, I. H., von Doenhoff, A. E., and Stivers, L. S., Summary of Airfoil Data, NACA Report No.
824, Langley Field, Va., 1945.
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Procedures,” 1986.
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Review Problems
Go to Appendix G for a set of review problems with answers. Detailed
solutions can be found in Student Solution Manual and Study
Guide for Fundamentals of Fluid Mechanics, by Munson et al.
(© 2009 John Wiley and Sons, Inc.).
Problems
Note: Unless otherwise indicated use the values of fluid properties
found in the tables on the inside of the front cover. Problems
designated with an 1*2 are intended to be solved with the
aid of a programmable calculator or a computer. Problems
designated with a 1†2 are “open ended” problems and require
critical thinking in that to work them one must make various
assumptions and provide the necessary data. There is not a
unique answer to these problems.
Answers to the even-numbered problems are listed at the
end of the book. Access to the videos that accompany problems
can be obtained through the book’s web site, www.wiley.com/
college/munson. The lab-type problems and FlowLab problems
can also be accessed on this web site.
pressure on the back side is a vacuum (i.e., less than the free stream
pressure) with a magnitude 0.4 times the stagnation pressure.
Determine the drag coefficient for this square.
9.3 A small 15-mm-long fish swims with a speed of 20 mm/s.
Would a boundary layer type flow be developed along the sides of
the fish? Explain.
9.4 The average pressure and shear stress acting on the surface
of the 1-m-square flat plate are as indicated in Fig. P9.4.
Determine the lift and drag generated. Determine the lift and
drag if the shear stress is neglected. Compare these two sets
of results.
Section 9.1 General External Flow Characteristics
9.1 Obtain photographs/images of external flow objects that are
exposed to both a low Reynolds number and high Reynolds number.
Print these photos and write a brief paragraph that describes
the situations involved.
9.2 A thin square is oriented perpendicular to the upstream
velocity in a uniform flow. The average pressure on the front side
of the square is 0.7 times the stagnation pressure and the average F I G U R E P9.4
U
p ave = 2.3 kN/m 2
τ ave = 7.6 × 10–2 kN/m 2
p ave = –1.2 kN/m 2
τ ave = 5.8 × 10–2 kN/m 2
α = 7°