Measurements of circular cylinder's wake using time-resolved PIV

Wang Yong; Hao Nansong; Geng Zihai; Wang Wanbo

doi:10.11729/syltlx20170099

Volume 32 Issue 1

Turn off MathJax

Article Contents

Article Navigation > Journal of Experiments in Fluid Mechanics > 2018 > 32(1): 64-70

Wang Yong, Hao Nansong, Geng Zihai, et al. Measurements of circular cylinder's wake using time-resolved PIV[J]. Journal of Experiments in Fluid Mechanics, 2018, 32(1): 64-70. doi: 10.11729/syltlx20170099

Citation:

PDF( 9648 KB)

Measurements of circular cylinder's wake using time-resolved PIV

doi: 10.11729/syltlx20170099

1.
State Key Laboratory of Aerodynamics, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China
2.
Key Laboratory of Aerodynamic Noise Control, China Aerodynamics Research and Development Center, Mianyang Sichuan 621000, China

Received Date: 2017-08-02
Rev Recd Date: 2017-11-20
Publish Date: 2018-02-25

Abstract

Abstract

Time-resolved particle image velocimetry (PIV) with sampling frequency f=1000Hz was used in 0.55m×0.4m aeroacoustic wind tunnel to test the unsteady characteristics of the flow behind a D=20mm diameter circular cylinder in an area of 7.5 times the diameter long and 6.6 times the diameter wide at Reynolds numbers of 2.74×10⁴.The characteristics of the mean and pulsating flow fields, as well as the frequency characteristics of the cylinder's wake have been revealed.A phase-averaged analysis method based on the cross-correlation coefficients among the PIV velocity vectors has been proposed to capture the process of vortex production, shedding, development and dissipation.The results indicate that there exists a low-speed recirculated flow area behind the circular cylinder, where the flow structure changes most intensively.The vortices shed from the upper and lower sides of the circular cylinder cross and correlate around the 1.9D downstream area, where the turbulence is the strongest.Strouhal number corresponding to the vortex shedding frequency of the cylinder's wake is stable around 0.2.The proposed phase-averaged analysis method is simple but efficient to study the spatial-temporal evolutions of the vortex shedding, which can be easily applied to other areas in unsteady flow field measurement.
- cylinder's wake,
- time-resolved PIV,
- wake characteristic,
- phase-averaged analysis,
- frequency characteristic

FullText(HTML)

References(26)

References

[1]	Von Karman T H, Rubach H. On the mechanism of resistance in fluid[J]. Physikalische Zeitschrift, 1912, 13(5):351-358. https://www.sciencedirect.com/science/article/pii/S0017931013001993
[2]	Williamson C H K. Vortex shedding in the cylinder wake[J]. Annu Rev Fluid Mech, 1996, 28:477-539. doi: 10.1146/annurev.fl.28.010196.002401
[3]	Raffel M, Willert C, Wereley S, et al. Particle image velocimetry:a practical guide[M]. 2nd ed. Berlin Heidelberg:Springer-Verlag, 2007.
[4]	Adrian R J. Twenty years of particle image velocimetry[J]. Exp Fluids, 2005, 39(2):159-169. doi: 10.1007/s00348-005-0991-7
[5]	Comte-Bellot G. Hot-wire anemometry[J]. Annu Rev Fluid Mech, 1976, 8:209-231. doi: 10.1146/annurev.fl.08.010176.001233
[6]	Perry A E. Hot-wire anemometry[M]. Oxford:Clarendon Press, 1982.
[7]	Julio S. An investigation of the near wake of a circular cylinder using a video-based digital cross-correlation particle image velocimetry technique[J]. Experimental Thermal and Fluid Science, 1996, 12(2):221-233. doi: 10.1016/0894-1777(95)00086-0
[8]	Krothapalli A, Shih C, Lourenco L. The near wake of a circular cylinder at 0. 3 < M < 0. 6: a PIV study[R]. AIAA-94-0663, 1994.
[9]	Braza M, Perrin R, Hoarau Y. Turbulence properties in the cylinder wake at high Reynolds numbers[J]. Journal of Fluids and Structures, 2006, (22):757-771. https://www.sciencedirect.com/science/article/pii/S0889974606000429
[10]	Perrin R, Cid E, Cazin S, et al. Phase-averaged measurements of the turbulence properties in the near wake of a circular cylinder at high Reynolds number by 2C-PIV and 3C-PIV[J]. Exp Fluids, 2007, (42):93-109. doi: 10.1007/s00348-006-0223-9.pdf
[11]	Sung J, Yoo J Y. Three-dimensional phase averaging of time-resolved PIV measurement data[J]. Meas Sci Technol, 2001, (12):655-662. http://ltces.dem.ist.utl.pt/lxlaser/lxlaser2014/finalworks2014/papers/02.10_6_170paper.pdf
[12]	Konstantinidis E, Balabani S, Yianneskis M. Conditional averaging of PIV plane wake data using a cross-correlation approach[J]. Exp Fluids, 2005, (39):38-47. doi: 10.1007/s00348-005-0963-y.pdf
[13]	张玮, 王元, 徐忠, 等.圆柱绕流涡系演变的DPIV测试[J].空气动力学学报, 2002, 20(4):379-387. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=kqdx200204002&dbname=CJFD&dbcode=CJFQ Zhang W, Wang Y, Xu Z, et al. Experimental investigation of vortex evlovement around a circular cylinder by digital particle image velocimetry (DPIV)[J]. Acta Aerodynamica Sinca, 2002, 20(4):379-387. http://kns.cnki.net/KCMS/detail/detail.aspx?filename=kqdx200204002&dbname=CJFD&dbcode=CJFQ
[14]	张孝棣, 蒋甲利, 贾元胜, 等.圆柱体绕流尾迹的PIV测量[J].实验流体力学, 2005, 19(2):74-78. http://manu27.magtech.com.cn/Jweb_jefm/CN/abstract/abstract9391.shtml Zhang X D, Jiang J L, Jia Y S, et al. Measurement of cylinder's wake by PIV[J]. Journal of Experiments in Fluid Mechanics, 2005, 19(2):74-78. http://manu27.magtech.com.cn/Jweb_jefm/CN/abstract/abstract9391.shtml
[15]	涂程旭, 王昊利, 林建忠.圆柱绕流的流场特性及涡脱落规律研究[J].中国计量学院学报, 2008, 19(2):98-102. http://www.doc88.com/p-2641200740396.html Tu C X, Wang H L, Lin J Z. Experimental research on the flow characteristics and vortex shedding in the flow around a circular cylinder[J]. Journal of China Jiliang University, 2008, 19(2):98-102. http://www.doc88.com/p-2641200740396.html
[16]	Wlezien R W, Way J L. Techniques for the experimental investigation of the near wake of a circular cylinder[J]. AIAA J, 1979, 17(6):563-570. doi: 10.2514/3.61178
[17]	Cantwell B, Coles D. An experimental study of entrainment and transport in the turbulent near wake of a circular cylinder[J]. J Fluid Mech, 1983, 136:321-374. doi: 10.1017/S0022112083002189
[18]	Perrin R, Braza M, Cid E, et al. Coherent and turbulent process analysis in the flow past a circular cylinder at high Reynolds number[J]. Journal of Fluids and Structures, 2008, 24(8):1313-1325. doi: 10.1016/j.jfluidstructs.2008.08.005
[19]	Zhou J, Adrian R J, Balachandar S, et al. Mechanisms for generating coherent packets of hairpin vortices in channel flow[J]. J Fluid Mech, 1999, 387:353-396. doi: 10.1017/S002211209900467X
[20]	Kravchenko A G, Moin P. Numerical studies of flow over a circular cylinder at Re=3900[J]. Physics of Fluids, 2000, 12(2):403-417. doi: 10.1063/1.870318
[21]	Parnaudeau P, Carlier J, Heitz D, et al. Experimental and numerical studies of the flow over a circular cylinder at Reynolds number 3900[J]. Physics of Fluids, 2008, 20(8):261-271. https://www.researchgate.net/profile/Dominique_Heitz/publication/234130406_Experimental_and_numerical_studies_of_the_flow_over_a_circular_cylinder_at_Reynolds_number_3900/links/0912f50a3828de19d1000000/Experimental-and-numerical-studies-of-the-flow-over-a-circular-cylinder-at-Reynolds-number-3900.pdf
[22]	Schlichting H. Boundary layer theory[M]. New York:McFraw-hill Book Company, 1968.
[23]	Franke J, Frank W. Large eddy simulation of the flow past a circular cylinder at Re=3900[J]. Journal of Wind Engineering and Industrial Aerodynamics, 2002, 90(10):1191-1206. doi: 10.1016/S0167-6105(02)00232-5
[24]	Breuer M. A challenging test case for large eddy simulation:high Reynolds number circular cylinder flow[J]. Int J Heat Fluid Flow, 2000, 21:648-654. doi: 10.1016/S0142-727X(00)00056-4
[25]	Dong S, Karniadakis E, Ekmekci A, et al. A combined direct numberical simulation-partical image velocimetry study of the turbulent near wake[J]. Journal of Fluid Mechanics, 2006, 569(12):185-207. https://www.researchgate.net/publication/260249661_A_combined_direct_numerical_simulation-particle_image_velocimetry_study_of_the_turbulent_near_wake
[26]	Fey U, Konig M, Eckelmann H. A new Strouhal-Reynolds number relationship for the circular cylinder in the range 47 < Re < 2×10⁵[J]. Physics of Fluids, 1998, 10(7):1547-1549. doi: 10.1063/1.869675