The local time-averaged temperature θs¯ and its fluctuating component θs on the surface of a heated circular cylinder immersed in a cylinder near-wake were measured using a fiber-optic Bragg grating (FBG) sensor. Three cylinder center-to-center spacing, i.e., L/d=5.20, 2.50, and 1.18, were investigated. In order to validate the FBG sensor measurement, a thermocouple and a single hot-wire were employed to measure θs¯ on the heated cylinder and streamwise fluctuating velocity u in the near-wake of the downstream cylinder, respectively. The FBG sensor measurement of θs¯ is in good agreement with that simultaneously obtained by the thermocouple. The measured θs is closely correlated to the hot-wire measurement; the θs-spectrum exhibits a pronounced peak at the vortex shedding frequency, as identified in Eu, for each L/d. The results suggest that the FBG sensor can be used to measure reliably both time-averaged and fluctuating temperatures. The heat transfer characteristics of the heated cylinder are examined for different L/d and further compared with the case of an isolated cylinder.

Issue Section:
Forced Convection
Keywords:
Cylinder, Experimental Flow, Heat Transfer, Measurement Techniques, Sensors, Temperature, Wakes, heat transfer, wakes, external flows
Topics:
Cylinders, Fiber Bragg gratings, Flow (Dynamics), Temperature, Wakes, Sensors, Heat transfer, Temperature measurement, Wire
1.
Kostic
,
Z. G.
, and
Oka
,
S. N.
,
1972
, “
Fluid Flow and Heat Transfer With Two Cylinders in Cross Flow
,”
Int. J. Heat Mass Transfer
,
15
, pp.
279
–
299
.
2.
Igarashi
,
T.
,
1981
, “
Characteristics of the Flow Around Two Circular Cylinders Arranged in Tandem
,”
Bull. JSME
,
24
(
188
), pp.
323
–
331
.
3.
Hiwada
,
M.
,
Mabuchi
,
I.
, and
Yanagihara
,
H.
,
1982
, “
Fluid Flow and Heat Transfer Around Two Circular Cylinders
,”
Bull. JSME
,
25
(
209
), pp.
1737
–
1745
.
4.
Zdravkovich
,
M. M.
,
1987
, “
The Effects of Interference Between Circular Cylinders in Cross Flow
,”
J. Fluids Struct.
,
1
, pp.
239
–
261
.
5.
Mahir
,
N.
, and
Rockwell
,
D.
,
1996
, “
Vortex Formation From a Forced System of Two Cylinders, Part 1: Tandem Arrangement
,”
J. Fluids Struct.
,
10
, pp.
473
–
489
.
6.
Meneghini
,
J. R.
,
Saltara
,
F.
,
Siqueira
,
C. L. R.
, and
Ferrari
, Jr.,
J. A.
,
2001
, “
Numerical Simulation of Flow Interference Between Two Circular Cylinders in Tandem and Side-by-Side Arrangement
,”
J. Fluids Struct.
,
15
, pp.
327
–
350
.
7.
Buyruk, E., Barrow, H., and Owen, I., 1995, “The Influence of Adjacent Tubes on Convection Heat Transfer From a Heated Tube in Cross-Flow,” In Fourth UK National Conference on Heat Transfer, I. Mech. E. Conference Trans., pp. 135–139.
8.
Zdravkovich
,
M. M.
, and
Pridden
,
D. J.
,
1977
, “
Interference Between Two Circular Cylinders; Series of Unexpected Discontinuities
,”
Journal of Industrial Aerodynamics
,
2
, pp.
255
–
270
.
9.
Arie
,
M.
,
Kiya
,
M.
,
Tamura
,
H.
, and
Mori
,
H.
,
1983
, “
Pressure Fluctuations on Two Circular Cylinders in Tandem Arrangement
,”
ASME J. Fluids Eng.
,
105
, pp.
161
–
167
.
10.
Achenbach
,
E.
,
1968
, “
Distribution of Local Pressure and Skin Friction Around a Circular Cylinder in Cross-Flow Up to Re=5×106,
”
J. Fluid Mech.
,
34
(
4
), pp.
625
–
639
.
11.
Dwyer
,
H. A.
, and
Mccroskey
,
W. J.
,
1973
, “
Oscillating Flow Over a Cylinder at Large Reynolds Number
,”
J. Fluid Mech.
,
61
(
4
), pp.
753
–
767
.
12.
Higuchi
,
H.
,
Kim
,
H. J.
, and
Farell
,
C.
,
1989
, “
On Flow Separation and Reattachment Around a Circular Cylinder at Critical Reynolds Numbers
,”
J. Fluid Mech.
,
200
, pp.
149
–
171
.
13.
Giedt
,
W. H.
, 1949, “Investigation of Variation of Point Unit Heat-Transfer Coefficient Around a Cylinder Normal to an Air Stream,” Trans. ASME, May, pp. 375–381.
14.
Krall
,
K. M.
, and
Eckert
,
E. R. G.
,
1973
, “
Local Heat Transfer Around a Cylinder at Low Reynolds Number
,”
J. Heat Transfer
,
95
, pp.
273
–
275
.
15.
Scholten
,
J. W.
, and
Murray
,
D. B.
,
1998
, “
Unsteady Heat Transfer and Velocity of a Cylinder in Cross Flow: Part 1—Low Freestream Turbulence
,”
Int. J. Heat Mass Transfer
,
41
(
10
), pp.
1139
–
1148
.
16.
Valvano
,
J. W.
,
1992
, “
Temperature Measurements
,”
Adv. Heat Transfer
,
22
, pp.
359
–
436
.
17.
Morris, A. S., 1993, Principles of Measurement and Instrumentation, Second ed., Redwood Books Ltd, Trowbridge, Wiltshire, Great Britain.
18.
Morrison, R., 1984, Instrumentation Fundamentals and Applications, John Wiley & Sons, New York.
19.
Michalski, L., Eckersdorf, K., and McGhee, J., 1991, Temperature Measurement, John Wiley & Sons Ltd. Baffins Lane, Chichester, West Sussex PO19 1UD, England.
20.
Marton, L., and Marton, C., 1981, Methods of Experimental Physics: Volume 18, Fluid Dynamics, Part B, Academic Press, Inc. (London) LTD.
21.
Sandberg
,
C.
, and
Haile
,
L.
,
1987
, “
Fiber Optic Application in Pipes and Pipelines
,”
IEEE Trans. Ind. Appl.
,
IA-23
(
6
), p.
1061
1061
.
22.
Grattan
,
K. T. V.
,
1987
, “
The Use of Fibre Optic Techniques for Temperature Measurement
,”
Meas. Control
,
20
(
6
), pp.
32
–
39
.
23.
Kersey
,
A. D.
,
Davis
,
M. A.
,
Patrick
,
H. J.
,
LeBlanc
,
M.
,
Koo
,
K. P.
,
Askins
,
C. G.
,
Putnam
,
M. A.
, and
Friebele
,
E. J.
,
1997
, “
Fiber Grating Sensors
,”
J. Lightwave Technol.
,
15
, pp.
1442
–
1462
.
24.
Zhou
,
Y.
,
So
,
R. M. C.
,
Jin
,
W.
,
Xu
,
H. G.
, and
Chan
,
P. K. C.
,
1999
, “
Dynamic Strain Measurements of a Circular Cylinder in a Cross Flow Using a Fibre Bragg Grating Sensor
,”
Exp. Fluids
,
27
, pp.
359
–
367
.
25.
Jin
,
W.
,
Zhou
,
Y.
,
Chan
,
P. K. C.
, and
Xu
,
H. G.
,
2000
, “
A Fibre-Optic Grating Sensor for the Study of Flow-Induced Vibrations
,”
Sens. Actuators
,
79
, pp.
36
–
45
.
26.
Ho
,
H. L.
,
Jin
,
W.
,
Chan
,
C. C.
,
Zhou
,
Y.
, and
Wang
,
X. W.
,
2002
, “
A Fiber Bragg Grating Sensor for Static and Dynamic Measurands
,”
Sens. Actuators A
,
96
, pp.
21
–
24
.
27.
Kieft
,
R. N.
,
Rindt
,
C. C. M.
,
Steenhoven
,
A. A.
, and
van Heijst
,
G. J. F.
,
2003
, “
On the Wake Structure Behind a Heated Horizontal Cylinder in Cross-Flow
,”
J. Fluid Mech.
,
486
, pp.
189
–
211
.
28.
King
,
R.
,
1977
, “
A Review of Vortex Shedding Research and Its Application
,”
Ocean Eng.
,
4
, pp.
141
–
171
.
29.
Zdravkovich
,
M. M.
,
1977
, “
Review of Flow Interference Between Two Circular Cylinders in Various Arrangements
,”
ASME J. Fluids Eng.
,
99
, pp.
618
–
633
.
30.
Zdravkovich, M. M., 1997, Flow Around Circular Cylinders, Vol. 1. Oxford University Press.
31.
Zhou
,
Y.
,
Wang
,
Z. J.
,
So
,
R. M. C.
,
Xu
,
S. J.
, and
Jin
,
W.
,
2001
, “
Free Vibrations of Two Side-by-Side Cylinders in a Cross Flow
,”
J. Fluid Mech.
,
443
, pp.
197
–
229
.
32.
Shi
,
C. Z.
,
Chan
,
C. C.
,
Zhang
,
M.
,
Ju
,
J.
,
Jin
,
W.
,
Liao
,
Y. B.
,
Zhang
,
Y.
, and
Zhou
,
Y.
,
2002
, “
Simultaneous Interrogation of Multiple Fiber Bragg Grating Sensors for Dynamic Strain Measurements
,”
J. Optoelectron. Adv. Mater.
,
4
, pp.
937
–
941
.
33.
Adachi
,
T.
,
Okamoto
,
S.
, and
Adachi
,
M.
,
1979
, “
The Effect of Sound on the Rate of Heat Transfer From a Cylinder Placed Normal to an Air Stream
,”
Bull. JSME
,
22
, pp.
1407
–
1415
.
34.
Chen, S. S., 1987, Flow-Induced Vibration of Circular Cylindrical Structures, Hemisphere Publishing Corporation, Washington.
35.
Holman, J. P., 1997, Heat Transfer, 8th ed., Mcgraw-Hill Companies, New York, pp. 248–255, 303.
36.
Krohn, D. A., 2000, Fiber Optic Sensors: Fundamentals and Applications, Research Triangle, ISA, NC, USA.
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