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Experiments in Fluids

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01.04.2016 | Research Article

Characterizing a burst leading-edge vortex on a rotating flat plate wing

verfasst von: Anya R. Jones, Albert Medina, Hannah Spooner, Karen Mulleners

Erschienen in: Experiments in Fluids | Ausgabe 4/2016

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Abstract

Identifying, characterizing, and tracking incoherent vortices in highly separated flows is of interest for the development of new low-order models for unsteady lift prediction. The current work examines several methods to identify vortex burst and characterize a burst leading-edge vortex. Time-resolved stereoscopic PIV was performed on a rotating flat plate wing at Re = 2500. The burst process was found to occur at mid-span and is characterized by axial flow reversal, the entrainment of opposite-sign vorticity, and a rapid expansion of vortex size. A POD analysis revealed that variations in certain mode coefficients are indicative of the flow state changes characteristics of burst. During burst, the leading-edge vortex evolves to a region of inhomogeneous vorticity distributed over a large area. Several methods of defining the vortex size and circulation are evaluated and a combination of these can be used to characterize the leading-edge vortex both pre- and post-burst.

Vorheriger Artikel Translational and rotational dynamics of a large buoyant sphere in turbulence

Nächster Artikel Pressure estimation from single-snapshot tomographic PIV in a turbulent boundary layer

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Aubry N (1991) On the hidden beauty of the proper orthogonal decomposition. Theor Comput Fluid Dyn 2(5–6):339–352. doi:10.1007/BF00271473 CrossRefMATH

AVT-202 (2014) Extensions of fundamental flow physics to practical MAV aerodynamics. Technical Report TR-AVT-202, NATO RTO

Babinsky H, Stevens R, Jones AR, Bernal L, Ol M (2015) Low order modelling of lift forces for unsteady pitching and surging wings (Invited). In: 54th AIAA aerospace sciences meeting and exhibit, San Diego, CA

Beem HR, Rival DE, Triantafyllou MS (2012) On the stabilization of leading-edge vortices with spanwise flow. Exp Fluids 52(2):511–517CrossRef

Birch JM, Dickson WB, Dickinson MH (2004) Force production and flow structure of the leading edge vortex on flapping wings at high and low Reynolds numbers. J Exp Biol 207(7):1063–1072. doi:10.1242/jeb.00848 CrossRef

Carr ZR, Chen C, Ringuette MJ (2013) Finite-span rotating wings: three-dimensional vortex formation and variations with aspect ratio. Exp Fluids 54:183–186. doi:10.1007/s00348-012-1444-8 CrossRef

Carr ZR, DeVoria AC, Ringuette M (2015) Aspect-ratio effects on rotating wings: circulation and forces. J Fluid Mech 767:497–525CrossRef

Eldredge JD, Wang C, Ol MV (2009) A computational study of a canonical pitch-up, pitch-down wing maneuver. In: 39th AIAA fluid dynamics conference, San Antonio, TX

Ellington CP, van den Berg C, Willmott AP, Thomas ALR (1996) Leading-edge vortices in insect flight. Nature 384(6610):626–630. doi:10.1038/384626a0 CrossRef

Garmann DJ, Visbal MR (2014) Dynamics of revolving wings for various aspect ratios. J Fluid Mech 748:932–956. doi:10.1017/jfm.2012.212 CrossRef

Graftieaux L, Michard M, Grosjean N (2001) Combining PIV, POD and vortex identification algorithms for the study of unsteady turbulent swirling flows. Meas Sci Technol 12(9):1422–1429CrossRef

Harbig RR, Sheridan J, Thompson MC (2013) Reynolds number and aspect ratio effects on the leading-edge vortex for rotating insect wing planforms. J Fluid Mech 717:166–192. doi:10.1017/jfm.2012.565 CrossRefMATH

Hunt JCR, Hussain F (1991) A note on velocity, vorticity and helicity of inviscid fluid elements. J Fluid Mech 229:569–587. doi:10.1017/S0022112091003178 MathSciNetCrossRefMATH

Jardin T, David L, Farcy A (2009) Characterization of vortical structures and loads based on time-resolved PIV for asymmetric hovering flapping flight. Exp Fluids 46(5):847–857. doi:10.1007/s00348-009-0632-7 CrossRef

Jeong J, Hussain F (1995) On the identification of a vortex. J Fluid Mech 285:69–94MathSciNetCrossRefMATH

Jones AR, Babinsky H (2011) Reynolds number effects on leading edge vortex development on a waving wing. Exp Fluids 51:197–210. doi:10.1007/s00348-010-1037-3 CrossRef

Kim D, Gharib M (2010) Experimental study of three-dimensional vortex structures in translating and rotating plates. Exp Fluids 49(1):329–339CrossRef

Kolluru Venkata S, Jones AR (2013) Leading-edge vortex structure over multiple revolutions of a rotating wing. J Aircr 50(4):1312–1316CrossRef

Lawson NJ, Wu J (1997) Three-dimensional particle image velocimetry: experimental error analysis of a digital angular stereoscopic system. Meas Sci Technol 8(12):1455CrossRef

Lentink D, Dickinson M (2009) Rotational accelerations stabilize leading edge vortices on revolving fly wings. J Exp Biol 212(16):2705–2719CrossRef

Liu Z, Adrian RJ, Hanratty TJ (2001) Large-scale modes of turbulent channel flow: transport and structure. J Fluid Mech 448:53–80. doi:10.1017/S0022112001005808 CrossRefMATH

Lourenco L, Subramanian S, Ding Z (1997) Time series velocity field reconstruction from PIV data. Meas Sci Technol 8(12):1533–1538CrossRef

Lu Y, Shen GX (2008) Three-dimensional flow structures and evolution of the leading-edge vortices on a flapping wing. J Exp Biol 211(8):1221–1230CrossRef

Lumley JL (1970) Stochastic tools in turbulence. Dover books on engineering. Dover Publications, Mineola

Manar F, Medina A, Jones AR (2014) Tip vortex structure and aerodynamic loading on rotating wings in confined spaces. Exp Fluids 55(9):1815. doi:10.1007/s00348-014-1815-4 CrossRef

Manar FH, Mancini P, Mayo D, Jones AR (2015) Comparison of rotating and translating wings: force production and vortex characteristics. AIAA J 1–12. doi:10.2514/1.J054422

Mancini P, Granlund K, Ol M, Jones AR (2015) Unsteady aerodynamic characteristics of a translating rigid wing at low Reynolds number. Phys Fluids 27(12):123102. doi:10.1063/1.493639 CrossRef

Maxworthy T (1979) Experiments on the Weis–Fogh mechanism of lift generation by insects in hovering flight. Part 1. Dynamics of the ‘fling’. J Fluid Mech 93(1):47–63CrossRef

Medina A, Jones AR (2015) Stereoscopic PIV analysis on rotary plates in bursting. In: 33rd AIAA applied aerodynamics conference, Dallas, TX. doi:10.2514/6.2015-3297

Moffatt HK (2014) Helicity and singular structures in fluid dynamics. Proc Natl Acad Sci 111(10):3663–3670. doi:10.1073/pnas.1400277111 MathSciNetCrossRef

Moffatt HK, Tsinober A (1992) Helicity in laminar and turbulent flow. Annu Rev Fluid Mech 24:281–312MathSciNetCrossRefMATH

Mulleners K, Raffel M (2012) The onset of dynamic stall revisited. Exp Fluids 52(3):779–793. doi:10.1007/s00348-011-1118-y CrossRef

Ozen CA, Rockwell D (2012) Flow structure on a rotating plate. Exp Fluids 52(1):207–223CrossRefMATH

Pedocchi F, Martin JE, Garcia MH (2008) Inexpensive fluorescent particles for large-scale experiments using particle image velocimetry. Exp Fluids 45:183–186. doi:10.1007/s00348-008-0516-2 CrossRef

Percin M, van Oudheusden BW (2015) Three-dimensional flow structures and unsteady forces on pitching and surging revolving flat plates. Exp Fluids 56:47. doi:10.1007/s00348-015-1915-9

Pitt Ford C, Babinsky H (2013) Lift and the leading-edge vortex. J Fluid Mech 720:280–313MathSciNetCrossRefMATH

Poelma C, Dickson WB, Dickinson M (2006) Time-resolved reconstruction of the full velocity field around a dynamically-scaled flapping wing. Exp Fluids 41(2):213–225CrossRef

Rival DE, Wong JG (2013) Measurements of vortex stretching on two-dimensional rotating plates with varying sweep. In: Proceedings of the 10th international symposium on particle image velocimetry, Delft, The Netherlands, July 1–3, 2013

Sirovich L (1987) Turbulence and the dynamics of coherent structures. Q Appl Math 45(10):561–590MathSciNetMATH

Taylor JA, Glauser MN (2004) Towards practical flow sensing and control via POD and LSE based low-dimensional tools. J Fluids Eng 126(3):337–345. doi:10.1115/1.1760540 CrossRef

van den Berg C, Ellington CP (1997) The three-dimensional leading-edge vortex of a ’hovering’ model hawkmoth. Philos Trans R Soc B 352(1351):329–340CrossRef

Wojcik CJ, Buchholz JHJ (2014) Vorticity transport in the leading-edge vortex on a rotating blade. J Fluid Mech 743:249–261. doi:10.1017/jfm.2014.18 CrossRef

Wong J, Rival D (2015) Determining the relative stability of leading-edge vortices on nominally two-dimensional flapping profiles. J Fluid Mech 766:611–625. doi:10.1017/jfm.2015.39 MathSciNetCrossRef

Titel: Characterizing a burst leading-edge vortex on a rotating flat plate wing
verfasst von: Anya R. Jones
Albert Medina
Hannah Spooner
Karen Mulleners
Publikationsdatum: 01.04.2016
Verlag: Springer Berlin Heidelberg
Erschienen in: Experiments in Fluids / Ausgabe 4/2016
Print ISSN: 0723-4864
Elektronische ISSN: 1432-1114
DOI: https://doi.org/10.1007/s00348-016-2143-7

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