[논문]Roles of wing flexibility and kinematics in flapping wing aerodynamics

Addo-Akoto, Reynolds; Han, Jong-Seob; Han, Jae-Hung

doi:10.1016/j.jfluidstructs.2021.103317

[해외논문] Roles of wing flexibility and kinematics in flapping wing aerodynamics 원문보기

Journal of fluids and structures, v.104, 2021년, pp.103317 -

Addo-Akoto, Reynolds (Department of Aerospace Engineering, KAIST) , Han, Jong-Seob (Chair of Aerodynamics and Fluid Mechanics, Technical University of Munich) , Han, Jae-Hung (Department of Aerospace Engineering, KAIST)

Abstract ▼ AI-Helper

Abstract Insects are excellent fliers because of their ability to generate precise wing kinematics and deform their wings for the sufficient production of unsteady aerodynamic forces. Most of the previous studies on the effects of wing kinematics on the aerodynamics have been limited to the use of rigid wings, and leaves the contribution of wing flexibility unknown. Here, an experiment was conducted to investigate the effect of varied sweep duration and timing of rotation on the unsteady aerodynamic characteristics of hovering flexible and rigid wings at Re of 104. This study found that the forces generated by the flexible wing showed a conspicuous phase delay, which was more sensitive to the change in sweep duration than the timing of rotation. The transient negative lift associated with rigid wings undergoing delayed and advanced wing rotations totally disappeared in the flexible case. A digital particle image velocimetry (DPIV) measurement at the middle of stroke revealed a slight difference in the vortical structures surrounding the two wings in terms of proximity to the shed trailing-edge vortices (TEVs). Also, the linearly twisted nature of the flexible wing caused the coherent leading-edge vortex (LEV) to be stabilized throughout the wingspan. This increased the radial limit of the delayed stall from 3.6c in the rigid wing to 4.8c in the flexible wing. In general, the flexible wing with symmetric and delayed wing rotations generated the higher efficiency. The corresponding net force vectors were tilted in an almost vertical direction in comparison to the rigid wing. This is an indication that natural fliers adopt specific wing kinematics in addition to their wing deformation for the upward titling of their net force vector, which will significantly enhance their aerodynamic performance.

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참고문헌 (62)

Exp. Fluids Addo-Akoto 60 1 2019 10.1007/s00348-019-2816-0 Influence of aspect ratio on wing-wake interaction for flapping wing in hover

상세보기
Bioinspir. Biomim. Addo-Akoto 2020 10.1088/1748-3190/aba8ac Aerodynamic performance of flexible flapping wings deformed by slack angle

상세보기
Addo-Akoto 1 2021 AIAA Scitech 2021 Forum Effects of sweep-motion profile on rigid and flexible flapping-wing aerodynamics
Proc. Natl. Acad. Sci. USA Altshuler 102 18213 2005 10.1073/pnas.0506590102 Short-amplitude high-frequency wing strokes determine the aerodynamics of honeybee flight

상세보기
Prog. Aerosp. Sci. Ansari 42 129 2006 10.1016/j.paerosci.2006.07.001 Aerodynamic modelling of insect-like flapping flight for micro air vehicles

상세보기
J. Fluid Mech. Berman 582 153 2007 10.1017/S0022112007006209 Energy-minimizing kinematics in hovering insect flight

상세보기
J. Fluid Mech. Bhat 884 2020 10.1017/jfm.2019.929 Effects of flapping-motion profiles on insect-wing aerodynamics

상세보기
Nature Birch 412 729 2001 10.1038/35089071 Spanwise flow and the attachment of the leading-edge vortex on insect wings

상세보기
J. Exp. Biol. Birch 206 2257 2003 10.1242/jeb.00381 The influence of wing-wake interactions on the production of aerodynamic forces in flapping flight

상세보기
J. Exp. Biol. Chin 219 920 2016 10.1242/jeb.042317 Flapping wing aerodynamics: from insects to vertebrates

상세보기
J. Fluid Mech. Dai 693 473 2012 10.1017/jfm.2011.543 Dynamic pitching of an elastic rectangular wing in hovering motion

상세보기
Science Dickinson 284 1954 1999 10.1126/science.284.5422.1954 Wing rotation and the aerodynamic basis of insect flight

상세보기
Appl. Math. Mech. (English Ed.) Du 29 731 2008 10.1007/s10483-008-0605-9 Effects of unsteady deformation of flapping wing on its aerodynamic forces

상세보기
J. Exp. Biol. Du 213 2273 2010 10.1242/jeb.040295 Effects of wing deformation on aerodynamic forces in hovering hoverflies

상세보기
Phil. Trans. R. Soc. B Ellington 305 41 1984 The aerodynamics of hovering insect flight. III. Kinematics
J. Exp. Biol. Ennos 140 161 1988 10.1242/jeb.140.1.161 The inertial cause of wing rotation in diptera

상세보기
J. Exp. Biol. Fry 208 2303 2005 10.1242/jeb.01612 The aerodynamics of hovering flight in Drosophila

상세보기
Bioinspir. Biomim. Fu 13 2018 10.1088/1748-3190/aaaac1 Effects of flexibility and aspect ratio on the aerodynamic performance of flapping wings

상세보기
Phys. Fluids Garmann 25 2013 10.1063/1.4794753 Three-dimensional flow structure and aerodynamic loading on a revolving wing

상세보기
Bioinspir. Biomim. Gu 15 2020 10.1088/1748-3190/ab97fc Wing rapid responses and aerodynamics of fruit flies during headwind gust perturbations

상세보기
Bioinspir. Biomim. Han 9 2014 10.1088/1748-3182/9/4/046012 Reynolds number dependency of an insect-based flapping wing

상세보기
J. Aircr. Han 52 1256 2015 10.2514/1.C032768 Role of trailing-edge vortices on the hawkmothlike flapping wing

상세보기
Bioinspir. Biomim. Han 10 46014 2015 10.1088/1748-3190/10/4/046014 An improved quasi-steady aerodynamic model for insect wings that considers movement of the center of pressure

상세보기
Phys. Fluids Han 31 2019 10.1063/1.5078669 Interactions of the wakes of two flapping wings in hover

상세보기
J. Fluid Mech. Harbig 730 52 2013 10.1017/jfm.2013.335 Relationship between aerodynamic forces, flow structures and wing camber for rotating insect wing planforms

상세보기
J. R. Soc. Interface Kang 10 2013 10.1098/rsif.2013.0361 Scaling law and enhancement of lift generation of an insect-size hovering flexible wing

상세보기
J. R. Soc. Interface Kruyt 12 2015 10.1098/rsif.2015.0051 Power reduction and the radial limit of stall delay in revolving wings of different aspect ratio

상세보기
Phys. Fluids Kweon 22 1 2010 10.1063/1.3471593 Sectional lift coefficient of a flapping wing in hovering motion

상세보기
Kweon, J., Choi, H., 2012. Three-dimensional flows around a flapping wing in ground effect. In: 7th Int. Conf. Comput. Fluid Dyn., ICCFD 2012, pp. 4-5.
J. Exp. Biol. Liu 211 2014 2008 10.1242/jeb.016931 Wing kinematics measurement and aerodynamics of hovering droneflies

상세보기
J. Exp. Biol. Lu 209 5005 2006 10.1242/jeb.02614 Dual leading-edge vortices on flapping wings

상세보기
AIAA J. Lua 52 1095 2014 10.2514/1.J052730 Scaling of aerodynamic forces of three-Dimensional flapping wings

상세보기
Bioinspir. Biomim. Nabawy 10 2015 10.1088/1748-3190/10/4/044002 Aero-optimum hovering kinematics

상세보기
Proc. R. Soc. B Biol. Sci. Nakata 279 722 2012 10.1098/rspb.2011.1023 Aerodynamic performance of a hovering hawkmoth with flexible wings: A computational approach

상세보기
Bioinspir. Biomim. Nan 12 2017 10.1088/1748-3190/aa5c9e Experimental optimization of wing shape for a hummingbird-like flapping wing micro air vehicle

상세보기
Bioinspir. Biomim. Nguyen 14 2019 Development and flight performance of a biologically-inspired tailless flapping-wing micro air vehicle with wing stroke plane modulation
J. Fluids Struct. Nguyen 62 294 2016 10.1016/j.jfluidstructs.2016.01.012 Modeling and analysis of insect-like flexible wings at low Reynolds number

상세보기
Bioinspir. Biomim. O’Hara 7 2012 The morphological characterization of the forewing of the Manduca sexta species for the application of biomimetic flapping wing micro air vehicles
Bioinspir. Biomim. Phan 12 2017 10.1088/1748-3190/aa65db Design and stable flight of a 21 g insect-like tailless flapping wing micro air vehicle with angular rates feedback control

상세보기
Bioinspir. Biomim. Phan 12 2017 10.1088/1748-3190/aa65e6 An experimental comparative study of the efficiency of twisted and flat flapping wings during hovering flight

상세보기
J. Exp. Biol. Ramamurti 205 1507 2002 10.1242/jeb.205.10.1507 A three-dimensional computational study of the aerodynamic mechanisms of insect flight

상세보기
Bioinspir. Biomim. Reid 14 2019 10.1088/1748-3190/ab2dbc Wing flexibility reduces the energetic requirements of insect flight

상세보기
AIAA J. Roshanbin 1 2019 Kinematic and aerodynamic enhancement of a robotic hummingbird
Int. J. Micro Air Veh. Roshanbin 9 270 2017 10.1177/1756829317695563 COLIBRI: A hovering flapping twin-wing robot

상세보기
Aerosp. Sci. Technol Ryu 86 558 2019 10.1016/j.ast.2019.01.013 Aerodynamic characteristics of flexible wings with leading-edge veins in pitch motions

상세보기
J. Exp. Biol. Sane 204 3401 2001 10.1242/jeb.204.15.2607 The control of flight force by a flapping wing: Lift and drag production

상세보기
J. Exp. Biol. Sane 205 1087 2002 10.1242/jeb.205.8.1087 The aerodynamic effects of wing rotation and a revised quasi-steady model of flapping flight

상세보기
Prog. Aerosp. Sci. Shyy 46 284 2010 10.1016/j.paerosci.2010.01.001 Recent progress in flapping wing aerodynamics and aeroelasticity

상세보기
Shyy 2013 An Introduction to Flapping Wing Aerodynamics
AIAA J. Shyy 45 2817 2007 10.2514/1.33205 Flapping wings and aerodynamic lift: the role of leading-edge vortices

상세보기
Bioinspir. Biomim. Sridhar 10 1 2015 10.1088/1748-3190/10/3/036007 Aerodynamic performance of two-dimensional, chordwise flexible flapping wings at fruit fly scale in hover flight

상세보기
J. Exp. Biol. Sun 205 55 2002 10.1242/jeb.205.1.55 Unsteady aerodynamic force generation by a model fruit fly wing in flapping motion

상세보기
Acta Mech. Sin. Sun 20 24 2004 10.1007/BF02493568 Large aerodynamic forces on a sweeping wing at low Reynolds number

상세보기
J. Open Res. Softw. Thielicke 2 2014 10.5334/jors.bl PIVlab - Towards user-friendly, affordable and accurate digital particle image velocimetry in MATLAB

상세보기
J. Bionic Eng. Truong 9 177 2012 10.1016/S1672-6529(11)60113-3 Flexible wing kinematics of a free-flying beetle (rhinoceros beetle trypoxylus dichotomus)

상세보기
J. R. Soc. Interface Walker 7 131 2010 10.1098/rsif.2009.0120 Deformable wing kinematics in free-flying hoverflies

상세보기
J. Fluids Struct. Wang 73 82 2017 10.1016/j.jfluidstructs.2017.06.006 An efficient fluid-structure interaction model for optimizing twistable flapping wings

상세보기
Meas. Sci. Technol. Wieneke 26 2015 10.1088/0957-0233/26/7/074002 PIV uncertainty quantification from correlation statistics

상세보기
Sci. Am. Wootton 263 114 1990 10.1038/scientificamerican1190-114 The mechanical design of insect wings

상세보기
J. Fluids Struct. Yoon 97 2020 10.1016/j.jfluidstructs.2020.103101 Effects of camber angle on aerodynamic performance of flapping-wing micro air vehicle

상세보기
Science Young 325 1549 2009 10.1126/science.1175928 Details of insect wing design and deformation enhance aerodynamic function and flight efficiency

상세보기
J. R. Soc. Interface Zhao 7 485 2010 10.1098/rsif.2009.0200 Aerodynamic effects of flexibility in flapping wings

상세보기

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