An experimental study is carried out to investigate the unsteady pressure exerted on the surface of a round cylinder in the subcritical Reynolds number range. Results are presented for the surface pressure fluctuations, spanwise coherence, lateral correlation length, and peripheral coherence. Discussions are provided for the dominance of the first three vortex shedding tones at different regions of the cylinder and the size of the flow structures around the cylinder. The dataset provided have shed new light on the unsteady aerodynamic loading acting on cylinders and provides the impetus for further research on the aerodynamics and aeroacoustics of bluff bodies.

References

1.
Gerrard
,
J. H.
,
1955
, “
Measurements of the Sound From Circular Cylinders in An Air Stream
,”
Proc. Phys. Soc. B
,
68
(
7
), pp.
453
461
.
2.
Zdravkovich
,
M. M.
,
1997
,
Flow Around Circular Cylinder
, Vol.
1
,
Oxford University Press
,
New York
.
3.
Strouhal
,
V.
,
1878
, “
Uebereine Besondere Art Der Tonenegung
,”
Ann. Phys. Chem. (Leipzig) Ser.
,
5
(
3
), pp.
216
251
.
4.
Von Karman
,
T.
, and
Rubach
,
H.
,
1912
, “
Uber Den Mechanismus Des Flussigkeits-Und Luftwiderstandes
,”
Phys. Z.
,
13
, pp.
49
59
.
5.
Rayleigh
,
L.
,
1915
, “
Aeolian Tones
,”
Philos. Mag.
,
29
(172), pp.
434
444
.
6.
Stowell
,
E. Z.
, and
Deming
,
A. F.
,
1936
, “
Vortex Noise From Rotating Cylindrical Rods
,”
J. Acoust. Soc. Am.
,
7
(
3
), pp.
190
198
.
7.
Kovasznay
,
L. S. G.
,
1949
, “
Hot Wire Investigation of the Wake behind Cylinders at Low Reynolds Numbers
,”
Proc. R. Soc. London Ser. A
,
198
(
1053
), pp.
174
190
.
8.
Roshko
,
A.
,
1953
, “
On the Development of Turbulent Wakes From Vortex Streets
,” Washington, D.C., Report No.
NACA-TN-2913
.https://authors.library.caltech.edu/428/
9.
Curle
,
N.
,
1955
, “
The Influence of Solid Boundaries Upon Aerodynamic Sound
,”
Proc. R. Soc. London Ser. A
,
231
(
1187
), pp.
505
514
.
10.
Yudin
,
E. Y.
,
1944
, “
On the Vortex Sound From Rotating Rods
,”
Zh. Tekh. Fiz.
,
14
(
9
), p.
561
.https://archive.org/details/nasa_techdoc_20030065895/page/n1
11.
Blevins
,
R. D.
,
1984
, “
Review of Sound Induced by Vortex Shedding From Cylinders
,”
J. Sound Vib.
,
92
(
4
), pp.
455
470
.
12.
Etkin
,
B.
, and
Ribner
,
H. S.
,
1958
, “
Canadian Research in Aerodynamic Noise
,”
University of Toronto, Institute of Astrophysics
, UTIA Review, Report No.
13
.https://repository.tudelft.nl/view/aereports/uuid:c247a3ca-3b82-41c5-84eb-2dc06be53009
13.
Ffowcs Williams
,
J. E.
, and
Hawkings
,
J. E.
,
1968
, “
Sound Generation by Turbulence and Surfaces in Arbitrary Motion
,”
Proc. R. Soc. London Ser. A
,
264
, pp.
321
342
.
14.
Oguma
,
Y.
,
Yamagata
,
T.
, and
Fujisawa
,
N.
,
2013
, “
Measurement of Sound Source Distribution Around a Circular Cylinder in a Uniform Flow by Combined Particle Image Velocimetry and Microphone Technique
,”
J. Wind Eng. Ind. Aerodyn.
,
118
, pp.
1
11
.
15.
Schlinker
,
R. H.
,
Fink
,
M. R.
, and
Amiet
,
R. K.
,
1976
, “
Vortex Noise From Nonrotating Cylinders and Airfoils
,”
AIAA
Paper No. AIAA 76–81.
https://arc.aiaa.org/doi/abs/10.2514/6.1976-81
16.
Casalino
,
D.
, and
Jacob
,
M.
,
2003
, “
Prediction of Aerodynamic Sound From Circular Rods Via Spanwise Statistical Modeling
,”
J. Sound Vib.
,
262
(
4
), pp.
815
844
.
17.
Fujita
,
H.
, and
Suzuki
,
H.
,
2002
, “
The Aeolian Tone and the Surface Pressure in High Reynolds Number Flow
,”
AIAA
Paper No. AIAA-99-1849.
18.
Ozkan
,
G. M.
,
Firat
,
E.
, and
Akilli
,
H.
,
2017
, “
Control of Vortex Shedding Using a Screen Attached on the Separation Point of a Circular Cylinder and Its Effect on Drag
,”
ASME J. Fluids Eng.
,
139
(
7
), pp.
1
11
.
19.
Ashtiani Abdi
,
I.
,
Hooman
,
K.
, and
Khashehchi
,
M.
,
2014
, “
A Comparison Between the Separated Flow Structures Near the Wake of a Bare and a Foam-Covered Circular Cylinder
,”
ASME J. Fluids Eng.
,
136
(
12
), pp.
1
8
.
20.
Garcia-Sagrado
,
A.
, and
Hynes
,
T.
,
2012
, “
Wall Pressure Sources Near An Airfoil Trailing Edge Under Turbulent Boundary Layers
,”
J. Fluids Struct.
,
30
, pp.
3
34
.
21.
Barlow
,
J. B.
,
Rae
,
W. H.
, and
Pope
,
A.
,
1999
,
Low-Speed Wind Tunnel Testing
, 3rd ed.,
Wiley
,
New York
.
22.
Yavuzkurt
,
S.
,
1984
, “
A Guide to Uncertainty Analysis of Hot-Wire Data
,”
ASME J. Fluids Eng.
,
106
(
2
), pp.
181
186
.
23.
Wilkins
,
S. J.
, and
Hall
,
J. W.
,
2014
, “
Experimental Investigation of a Tandem Cylinder System With a Yawed Upstream Cylinder
,”
ASME J. Pressure Vessel Technol.
,
136
(
1
), pp.
1
8
.
24.
Hutcheson
,
F. V.
,
Brooks
,
T. F.
,
Lockard
,
D. P.
,
Choudhari
,
M. M.
, and
Stead
,
D. J.
,
2014
, “
Acoustics and Surface Pressure Measurements From Tandem Cylinder Configurations
,”
AIAA
Paper No. AIAA 2014-2762
.
25.
Corcos
,
G. M.
,
1963
, “
Resolution of Pressure in Turbulence
,”
J. Acoust. Soc. Am.
,
35
(
2
), pp.
192
199
.
26.
Goody
,
M.
,
2004
, “
Empirical Spectral Model of Surface Pressure Fluctuations
,”
AIAA J.
,
42
(
9
), pp.
1788
1794
.
27.
Bull
,
M. K.
, and
Thomas
,
A. S. W.
,
1976
, “
High Frequency Wall-Pressure Fluctuations in Turbulent Boundary Layers
,”
Phys. Fluids
,
19
(
4
), pp.
597
599
.
28.
Afshari
,
A.
,
Azarpeyvand
,
M.
,
Dehghan
,
A. A.
, and
Szoke
,
M.
,
2016
, “
Trailing Edge Noise Reduction Using Novel Surface Treatments
,”
AIAA
Paper No. AIAA 2016-2834
.
29.
Goody
,
M.
,
1999
, “
An Experimental Investigation of Pressure Fluctuations in Three-Dimensional Turbulent Boundary Layers
,”
Ph.D. dissertation
, Aerospace Engineering, Virginia Polytechnic Institute and State University, Blacksburg, VA.https://vtechworks.lib.vt.edu/handle/10919/29908
30.
Goody
,
M. C.
, and
Roger
,
L. S.
,
1999
, “
An Experimental Investigation of Pressure Fluctuations in Three-dimensional Turbulent Boundary Layers
,”
Virginia Polytechnic Institute and State University
,
Blacksburg, VA
.
31.
Bendat
,
J. S.
, and
Piersol
,
A. G.
,
2011
,
Random Data: Analysis and Measurement Procedures
, Vol.
729
,
Wiley
,
New York
, p. 640.
32.
West
,
G. S.
, and
Apelt
,
C. J.
,
1982
, “
The Effects of Tunnel Blockage and Aspect Ratio on the Mean Flow Past a Circular Cylinder With Reynolds Numbers Between 104 and 105
,”
J. Fluid Mech.
,
114
(
1
), pp.
361
377
.
33.
Weidman
,
P. D.
,
1968
, “
Wake Transition and Blockage Effects on Cylinder Base Pressures
,” Ph.D. thesis, California Institute of Technology, Pasadena, CA.
34.
Fage
,
A.
, and
Falkner
,
V. M.
,
1931
, “
Further Experiments on the Flow Around a Circular Cylinder
,”
HMSO
,
London
.
35.
Sadeh
,
W.
, and
Saharon
,
D. B.
,
1982
, “
Turbulence Effect on Crossflow Around a Circular Cylinder at Subcritical Reynolds Numbers
,” National Aeronautics and Space Administration, Washington, DC, Report No.
NASA-CR-3622
.https://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19830005116.pdf
36.
Sun
,
T. F.
,
Gu
,
Z. F.
,
Hu
,
D. X.
, and
Zhang
,
L. L.
,
1992
, “
Fluctuation Pressure on Two Circular Cylinders at High Reynolds Numbers
,”
J. Wind Eng. Ind. Aerodyn.
,
41
(
1–3
), pp.
577
588
.
37.
Gu
,
F.
,
Wang
,
J. S.
,
Qiao
,
X. Q.
, and
Huang
,
Z.
,
2012
, “
Pressure Distribution, Fluctuating Forces and Vortex Shedding Behavior of Circular Cylinder With Rotatable Splitter Plates
,”
J. Fluids Struct.
,
28
, pp.
263
278
.
38.
Kato
,
C.
,
Lida
,
A.
,
Fujita
,
H.
, and
Ikegawa
,
M.
,
1993
, “
Numerical Prediction of Aerodynamic Noise From Low Mach Number Turbulent Wake
,”
AIAA
Paper No. AIAA-93-0145.
39.
Gruber
,
M.
,
2012
, “
Airfoil Noise Reduction by Edge Treatments
,” Ph.D. thesis, Department of Engineering, University of Southampton, Southampton, UK.
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