Small Unmanned Aerial Vehicles have been receiving an increasingly interest in the last decades, fostered by the need of vehicles able to perform surveillance, communications relay links, ship decoys, and detection of biological, chemical, or nuclear materials. Smaller and handy vehicles Micro Air vehicles (MAVs) become even more challenging when DARPA launched in 1997 a pilot study into the design of portable (150 mm) flying vehicles to operate in D3—dull, dirty and dangerous—environments. More recently DARPA launched a Nano Air Vehicle (NAV) program with the objective of developing and demonstrating small (<100 mm; <10 g) lightweight air vehicles with the potential to perform indoor and outdoor missions. The current investigation is focused on the mechanisms involved with natural locomotion (propulsion and lift should not be considered independently). Biological systems with interesting applications to MAVs are generally inspired on flying insects or birds; however, similarly to the aerodynamics of flight, powered swimming requires animals to overcome drag by producing thrust. Commonalities between natural flying and swimming are analyzed together with flow control issues as a purpose of improvement on biology-inspired or biomimetic concepts for Micro Air Vehicles implementation.
References
[1]
Borelli, G.A. (1680) De Motu Animalium. A. Bernabo, Rome.
[2]
Pettigrew, J.B. (1874) Animal Locomotion or Walking, Swimming and Flying with a Dissertation on Aeronautics. D. Appleton & Company, New York.
Mueller, T.J. and DeLaurier, J.D. (2003) Aerodynamics of Small Vehicles. Annual Review of Fluid Mechanics, 35, 89-111. http://dx.doi.org/10.1146/annurev.fluid.35.101101.161102
[5]
McMichael, J.M. and Francis, M.S. (1997) Micro Air Vehicles—Toward a New Dimension in Flight.
http://fas.org/irp/program/collect/docs/mav_auvsi.htm
[6]
Hylton, T., Martin, C., Tun, R. and Castelli, V. (2012) The DARPA Nano Air Vehicle Program. Proceedings of 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Nashville, Tennessee, 9-12 January 2012, 8549-8557. http://dx.doi.org/10.2514/6.2012-583
[7]
von Ellenrieder, K.D., Parker, K. and Soria, J. (2008) Fluid mechanics of flapping wings. Experimental Thermal and Fluid Science, 32, 1578-1589. http://dx.doi.org/10.1016/j.expthermflusci.2008.05.003
[8]
Evers, J.H. (2007) Biological Inspiration for Agile Autonomous Air Vehicles. In Platform Innovations and System Integration for Unmanned Air, Land and Sea Vehicles (AVT-SCI Joint Symposium). Meeting Proceedings RTO-MP- AVT-146, Paper 15, RTO, Neuilly-sur-Seine, France, 15-1-15-14.
[9]
Ho, S., Nassef, H., Pornsinsirirak, N., Tai, Y. and Ho, C. (2003) Unsteady Aerodynamics and Flow Control for Flapping Wing Flyers. Progress in Aerospace Sciences, 39, 635-681. http://dx.doi.org/10.1016/j.paerosci.2003.04.001
[10]
DeLaurier, J.D. and Harris, J.M. (1982) Experimental Study of Oscillating-Wing Propulsion. Journal of Aircraft, 19, 368-373. http://dx.doi.org/10.2514/3.44760
[11]
Tuncer, I.H. and Platzer, M.F. (2000) Computational Study of Flapping Airfoil Aerodynamics. Journal of Aircraft, 37, 514-520. http://dx.doi.org/10.2514/2.2628
[12]
Rozhdestvensky, K.V. and Ryzhov, V.A. (2003) Aerohydrodynamics of Flapping-Wing Propulsors. Progress in Aerospace Sciences, 39, 585-633. http://dx.doi.org/10.1016/S0376-0421(03)00077-0
[13]
Lentink, D. and Gerritsma, M. (2003) Influence of Airfoil Shape on Performance in Insect Flight. Proceedings of the 33rd AIAA Fluid Dynamics Conference and Exhibit, Orlando, 23-26 June 2003.
[14]
An, S., Maeng, J. and Han, C. (2009) Thickness Effect on the Thrust Generation of Heaving Airfoils. Journal of Aircraft, 46, 216-222. http://dx.doi.org/10.2514/1.37903
[15]
Vandenberghe, N., Childress, S. and Zhang, J. (2006) On Unidirectional Flight of a Free Flapping Wing. Physics of Fluids, 18, 014102-1-14102-8. http://dx.doi.org/10.1063/1.2148989
[16]
Wang, Z.J. (2000) Vortex Shedding and Frequency Selection in Flapping Flight. Journal of Fluid Mechanics, 410, 323-341. http://dx.doi.org/10.1017/S0022112099008071
[17]
Cebeci. T., Platzer. M., Chen. H., Chang, K.C. and Shao, J.P. (2005) Analysis of Low-Speed Unsteady Airfoil Flows. Edition 2005, Horizons Publishing Inc., Long Beach.
[18]
Le, T.Q., Ko, J.H., Byun, D., Park, S.H. and Park, H.C. (2010) Effect of Chord Flexure on Aerodynamic Performance of a Flapping Wing. Journal of Bionic Engineering, 7, 87-94. http://dx.doi.org/10.1016/S1672-6529(09)60196-7
[19]
Heathcote, S., Wang, Z. and Gursul, I. (2008) Effect of Spanwise Flexibility on Flapping Wing Propulsion. Journal of Fluid and Structures, 24, 183-199. http://dx.doi.org/10.1016/j.jfluidstructs.2007.08.003
[20]
Lentink, D., Van Heijst, G.F., Muijres, F.T. and Van Leeuwen, J.L. (2010) Vortex Interactions with Flapping Wings and Fins Can Be Unpredictable. Biology Letters, 6, 394-397. http://dx.doi.org/10.1098/rsbl.2009.0806
[21]
Lentink, D. and Dickinson, M.H. (2009) Biofluiddynamic Scaling of Flapping, Spinning and Translating Fins and Wings. Journal of Experimental Biology, 212, 2691-2704. Http://Dx.Doi.Org/10.1242/Jeb.022251
Fish, F.E., Howle, L.E. and Murray, M.M. (2008) Hydrodynamic Flow Control in Marine Mammals. Integrative and Comparative Biology, 48, 788-800. http://dx.doi.org/10.1093/icb/icn029
[24]
Wolfgang, M.J., Anderson, J.M., Grosenbaugh, M.A., Yue, D.K. and Triantafyllou, M.S. (1999) Near-Body Flow Dynamics in Swimming Fish. Journal of Experimental Biology, 202, 2303-2327.
[25]
Drucker, E.G. and Lauder, G.V. (2000) A Hydrodynamic Analysis of Fish Swimming Speed: Wake Structure and Locomotor Force in Slow and Fast Labriform Swimmers. Journal of Experimental Biology, 203, 2379-2393.
[26]
Choi, H., Park, H., Sagong, W. and Lee, S. (2012) Biomimetic Flow Control Based on Morphological Features of Living Creatures. Physics of Fluids, 24, Article ID: 121302. http://dx.doi.org/10.1063/1.4772063
[27]
Dickinson, M.H., Lehman, F.-O. and Sane, S.P. (1999) Wing Rotation and the Aerodynamic Basis of Insect Flight. Science, 284, 1954-1960. http://dx.doi.org/10.1126/science.284.5422.1954
[28]
Sun, J. and Bushan, B. (2012) The Structure and Mechanical Properties of Dragonfly Wings and Their Role on Flyability. Comptes Rendus Mécanique, 340, 3-17. http://dx.doi.org/10.1016/j.crme.2011.11.003
[29]
Ho, S., Nassef, H., Pornsinsirirak, N., Tai, Y.C. and Ho, C.M. (2003) Unsteady Aerodynamics and Flow Control for Flapping Wing Flyers. Progress in Aerospace Sciences, 39, 635-681. http://dx.doi.org/10.1016/j.paerosci.2003.04.001
[30]
Jongerius, S.R. and Lentink, D. (2010) Structural Analysis of a Dragonfly Wing. Experimental Mechanics, 50, 1323- 1334. http://dx.doi.org/10.1007/s11340-010-9411-x
[31]
Scientific American, The Sciences, Catching the Wake. http://www.scientificamerican.com/article/catching-the-wake/
[32]
Yin, B. and Luo, H. (2010) Effect of Wing Inertia on Hovering Performance Flapping Wings. Physics of Fluids, 22, Article ID: 111902. http://dx.doi.org/10.1063/1.3499739
[33]
Liu, H., Ellington, C.P., Kawachi, K., van den Berg, C. and Willmott, A.P. (1998) A Computational Fluid Dynamic Study of Hawkmoth Hovering. Journal of Experimental Biology, 21, 461-477.
[34]
Lentink, D. and Dickinson, M.H. (2009) Rotational Accelerations Stabilize Leading Edge Vortices on Revolving Fly Wings. Journal of Experimental Biology, 212, 2705-2719. http://dx.doi.org/10.1242/jeb.022269
[35]
Tanaka, H. and Wood, R.J. (2010) Fabrication of Corrugated Artificial Insect Wings Using Laser Micromachined Molds. Journal of Micromechanics and Microengineering, 20, Article ID: 075008.
http://dx.doi.org/10.1088/0960-1317/20/7/075008
[36]
Tanaka, H., Whitney, J.P. and Wood, R.J. (2011) Effect of Flexural and Torsional Wing Flexibility on Lift Generation in Hoverfly Flight. Integrative and Comparative Biology, 51, 142-150. http://dx.doi.org/10.1093/icb/icr051
[37]
Nguyen, Q.V., Park, H.C., Goo, N.S. and Byun. D. (2010) Characteristics of a Beetle’s Free Flight and a Flapping- Wing System that Mimics Beetle Flight. Journal of Bionic Engineering, 7, 77-86.
http://dx.doi.org/10.1016/S1672-6529(09)60195-5
[38]
Barata, J.M.M., Neves, F.M.S.P. and Manquinho, P.A.R. (2015) Comparative Study of Wing’s Motion Patterns on Various Types of Insects on Resemblant Flight Stages. Proceedings of the AIAA Atmospheric Flight Mechanics Conference, SciTech 2015, Kissimmee, 5-9 January 2015, 828-848.