Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region

doi:10.1007/s12204-019-2045-y

Journal of Shanghai Jiao Tong University (Science) ›› 2019, Vol. 24 ›› Issue (1): 113-121.doi: 10.1007/s12204-019-2045-y

Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region

AN Xinyu *(安新宇), SONG Baowei (宋保维), TIAN Wenlong (田文龙), MA Congcong (马聪聪)

(1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China; 2. Laboratoire Roberval, Universit′e de Technologie de Compi`egne, Compi`egne 60200, France)

出版日期:2019-02-28 发布日期:2019-01-28
通讯作者: AN Xinyu *(安新宇) E-mail:an_xinyu@163.com

Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region

AN Xinyu *(安新宇), SONG Baowei (宋保维), TIAN Wenlong (田文龙), MA Congcong (马聪聪)

(1. School of Marine Science and Technology, Northwestern Polytechnical University, Xi’an 710072, China; 2. Laboratoire Roberval, Universit′e de Technologie de Compi`egne, Compi`egne 60200, France)

Online:2019-02-28 Published:2019-01-28
Contact: AN Xinyu *(安新宇) E-mail:an_xinyu@163.com

摘要/Abstract

摘要： Numerical research of flow past a circular cylinder with a splitter at the subcritical Reynolds number region of 5 × 104—9 × 104 was researched based on Computational Fluid Dynamics (CFD) through solving twodimensional incompressible unsteady Reynolds-averaged Navier-Stokes (URANS) equations with the shear stress transport (SST) k-ω turbulence model. Three different grid resolutions were employed in the verification and validation study of the adopted turbulence model. Various fluid characteristics such as Strouhal number, lift coefficient of the cylinder and the splitter with respect to various splitter lengths and different Reynolds numbers were investigated. It was revealed that the lift coefficient ratio of the splitter over the cylinder remains near 1.6 when the splitter length is 1.5—4 times the cylinder’s diameter. Vortex shedding is strongly inhibited when the splitter length is greater than a critical value of around four times the cylinder’s diameter. The phase difference of the lift coefficient on the upper and lower surface of the splitter varies between ?30? and 30?. The maximal lift coefficients are reached when the splitter length is about 2 times the cylinder’s diameter. Besides, the splitter length has little influence on the separation angle around the cylinder.

关键词: splitter plate, lift force, vortex shedding, high Reynolds number, URANS

Abstract: Numerical research of flow past a circular cylinder with a splitter at the subcritical Reynolds number region of 5 × 104—9 × 104 was researched based on Computational Fluid Dynamics (CFD) through solving twodimensional incompressible unsteady Reynolds-averaged Navier-Stokes (URANS) equations with the shear stress transport (SST) k-ω turbulence model. Three different grid resolutions were employed in the verification and validation study of the adopted turbulence model. Various fluid characteristics such as Strouhal number, lift coefficient of the cylinder and the splitter with respect to various splitter lengths and different Reynolds numbers were investigated. It was revealed that the lift coefficient ratio of the splitter over the cylinder remains near 1.6 when the splitter length is 1.5—4 times the cylinder’s diameter. Vortex shedding is strongly inhibited when the splitter length is greater than a critical value of around four times the cylinder’s diameter. The phase difference of the lift coefficient on the upper and lower surface of the splitter varies between ?30? and 30?. The maximal lift coefficients are reached when the splitter length is about 2 times the cylinder’s diameter. Besides, the splitter length has little influence on the separation angle around the cylinder.

Key words: splitter plate, lift force, vortex shedding, high Reynolds number, URANS

中图分类号:

O 351.2

AN Xinyu *(安新宇), SONG Baowei (宋保维), TIAN Wenlong (田文龙), MA Congcong (马聪聪). Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region[J]. Journal of Shanghai Jiao Tong University (Science), 2019, 24(1): 113-121.

参考文献 24

[1]	GROVE A S, SHAIR F H, PETERSEN E E, et al. Anexperimental investigation of the steady separated flowpast a circular cylinder [J]. Journal of Fluid Mechanics,1964, 19(1): 60-80.
[2]	KWON K, CHOI H. Control of laminar vortex sheddingbehind a circular cylinder using splitter plates [J].Physics of Fluids, 1996, 8(2): 479-486.
[3]	VU H C, AHN J, HWANG J H. Numerical investigationof flow around circular cylinder with splitter plate[J]. KSCE Journal of Civil Engineering, 2016, 20(6):2559-2568.
[4]	GERRARD J H. The mechanics of the formation regionof vortices behind bluff bodies [J]. Journal of FluidMechanics, 1966, 25(2): 401-413.
[5]	APELT C J, WEST G S, SZEWCZYK A A. The effectsof wake splitter plates on the flow past a circularcylinder in the range 104 < R < 5 × 104 [J]. Journalof Fluid Mechanics, 1973, 61(1): 187-198.
[6]	LIU K, DENG J Q, MEI M. Experimental study onthe confined flow over a circular cylinder with a splitterplate [J]. Flow Measurement and Instrumentation,2016, 51: 95-104.
[7]	CHAUHAN M K, MORE B S, DUTTA S, et al. Effectof attached type splitter plate length over a squarepris in subcritical Reynolds number [M]//SAHA AK, DAS D, SRIVASTAVA R, et al. Fluid mechanicsand fluid power—Contemporary research. New Delhi,India: Springer, 2017: 1283-1292.
[8]	SOUMYA S, PRAKASH K A. Effect of splitter plateon fluid flow characteristics past a triangular cylinder[C]//15th Asian Congress of Fluid Mechanics. Kuching,Malaysia: IOP Publishing, 2017, 822: 012054.
[9]	DE ARAUJO L A, SCHETTINI E B C, SILVESTRINIJ H. Direct numerical simulation of turbulent flow pasta cylinder with splitter plate [C]//10th ABCM SpringSchool on Transition and Turbulence. S?ao Jos′e dosCampos, Brazil: ABCM, 2016.
[10]	CATALANO P,WANG M, IACCARINO G, et al. Numericalsimulation of the flow around a circular cylinderat high Reynolds numbers [J]. International Journalof Heat and Fluid Flow, 2003, 24(4): 463-469.
[11]	SINGH S P, MITTAL S. Flow past a cylinder: Shearlayer instability and drag crisis [J]. International Journalfor Numerical Methods in Fluids, 2005, 47(1): 75-98.
[12]	TUTAR M, HOLD? A E. Computational modelingof flow around a circular cylinder in sub-critical flowregime with various turbulence models [J]. InternationalJournal for Numerical Methods in Fluids, 2001,35(7): 763-784.
[13]	ONG M C, UTNES T, HOLMEDAL L E, et al. Numericalsimulation of flow around a smooth circularcylinder at very high Reynolds numbers [J]. MarineStructures, 2009, 22(2): 142-153.
[14]	MALIZIA F, MONTAZERI H, HESPEL P, et al. Numericalsimulation of flow around a circular cylinder:Comparison of LES and URANS turbulence models[C]//8th International Colloquium on Bluff Body Aerodynamicsand Applications. Boston, MA, USA: NortheasternUniversity, 2016.
[15]	ROSTAMI A B, ARMANDEI M. Renewable energyharvesting by vortex-induced motions: Review andbenchmarking of technologies [J]. Renewable and SustainableEnergy Reviews, 2017, 70: 193-214.
[16]	BERNITSAS M M, RAGHAVAN K, BEN-SIMON Y,et al. VIVACE (vortex induced vibration for aquaticclean energy): A new concept in generation of cleanand renewable energy from fluid flow [J]. Journalof Offshore Mechanics and Arctic Engineering, 2008,130(4): 041101.
[17]	AKAYDIN H D, ELVIN N, ANDREOPOULOS Y. Energyharvesting from highly unsteady fluid flows usingpiezoelectric materials [J]. Journal of Intelligent MaterialSystems and Structures, 2010, 21(13): 1263-1278.
[18]	VINOD A, KASHYAP A, BANERJEE A, et al. Augmentingenergy extraction from vortex induced vibrationusing strips of roughness/thickness combinations[C]//Proceedings of the 1st Marine Energy TechnologySymposium. Washington, DC, USA: METS, 2013: 1-10.
[19]	PRASANTH T K, MITTAL S. Effect of blockage onfree vibration of a circular cylinder at low Re [J]. InternationalJournal for Numerical Methods in Fluids,2008, 58(10): 1063-1080.
[20]	SEO IW, SONG C G. Numerical simulation of laminarflow past a circular cylinder with slip conditions [J]. InternationalJournal for Numerical Methods in Fluids,2012, 68(12): 1538-1560.
[21]	MAHIR N, ALTAC Z. Numerical investigation of convectiveheat transfer in unsteady flow past two cylindersin tandem arrangements [J]. International Journalof Heat and Fluid Flow, 2008, 29(5): 1309-1318.
[22]	AKILLI H, KARAKUS C, AKAR A, et al. Control ofvortex shedding of circular cylinder in shallow waterflow using an attached splitter plate [J]. Journal ofFluids Engineering, 2008, 130(4): 041401.
[23]	ZDRAVKOVICH M M. Flow around circularcylinders—Vol. 1: Fundamentals [M]. New York:Oxford University Press, 1997.
[24]	STAPPENBELT B. Splitter-plate wake stabilisationand low aspect ratio cylinder flow-induced vibrationmitigation [J]. International Journal of Offshore andPolar Engineering, 2010, 20(3): 1-6.

Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region

Numerical Research of Flow past a Circular Cylinder with Splitter Plate at a Subcritical Reynolds Number Region

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