Aerodynamic Performance of a Pitching Bio-Inspired Corrugated Airfoil
In the present study, the aerodynamic performance of a rigid two-dimensional pitching bio-inspired corrugate airfoil was numerically investigated at Reynolds number of 14000. The Open Field Operations And Manipulations (OpenFOAM) computational fluid dynamic tool is used to solve flow governing equations numerically. The k-ω SST turbulence model with low Reynolds correction (k-ω SST LRC) and the pimpleDyMFOAM solver are utilized to simulate the flow field around pitching bio-airfoil. The lift and drag coefficients of the airfoil are calculated at reduced frequencies k=1.24-4.96 and the angular amplitude of A=5°-20°. Results show that in a fixed reduced frequency, the absolute value of the sectional lift and drag coefficients increase with increasing pitching amplitude. In a fixed angular amplitude, the absolute value of the lift and drag coefficients increase as the pitching reduced frequency increases.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1474443Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 426
 S. P. Sane, "The aerodynamics of insect flight," Journal of experimental biology, vol. 206, no. 23, pp. 4191-4208, 2003.
 W. Shyy et al., "Computational aerodynamics of low Reynolds number plunging, pitching and flexible wings for MAV applications," Acta Mechanica Sinica, vol. 24, no. 4, pp. 351-373, 2008.
 R. Srygley and A. Thomas, "Unconventional lift-generating mechanisms in free-flying butterflies," Nature, vol. 420, no. 6916, pp. 660-664, 2002.
 C. P. Ellington, C. Van Den Berg, A. P. Willmott, and A. L. Thomas, "Leading-edge vortices in insect flight," Nature, vol. 384, no. 6610, pp. 626-630, 1996.
 B. Newman, "Model tests on a wing section of an Aeschna dragonfly," Scale Effects in Animal Locomotion, 1977.
 D. E. Alexander, "Unusual phase relationships between the forewings and hindwings in flying dragonflies," Journal of Experimental Biology, vol. 109, no. 1, pp. 379-383, 1984.
 G. Rüppell, "Kinematic analysis of symmetrical flight manoeuvres of Odonata," Journal of Experimental Biology, vol. 144, no. 1, pp. 13-42, 1989.
 A. Azuma and T. Watanabe, "Flight performance of a dragonfly," Journal of Experimental Biology, vol. 137, no. 1, pp. 221-252, 1988.
 A. L. Thomas, G. K. Taylor, R. B. Srygley, R. L. Nudds, and R. J. Bomphrey, "Dragonfly flight: free-flight and tethered flow visualizations reveal a diverse array of unsteady lift-generating mechanisms, controlled primarily via angle of attack," Journal of Experimental Biology, vol. 207, no. 24, pp. 4299-4323, 2004.
 M. Tamai, Z. Wang, G. Rajagopalan, H. Hu, and G. He, "Aerodynamic performance of a corrugated dragonfly airfoil compared with smooth airfoils at low Reynolds numbers," in 45th AIAA Aerospace Sciences Meeting and Exhibit, 2007, pp. 1-12.
 D.-E. Levy and A. Seifert, "Simplified dragonfly airfoil aerodynamics at Reynolds numbers below 8000," Physics of Fluids, vol. 21, no. 7, p. 071901, 2009.
 M. Kwok and R. Mittal, "Experimental investigation of the aerodynamics of a modeled dragonfly wing section," in AIAA region I-MA Student Conference, Charlottesville, Virginia April, 2005, pp. 8-9.
 J. T. Murphy and H. Hu, "An experimental study of a bio-inspired corrugated airfoil for micro air vehicle applications," Experiments in fluids, vol. 49, no. 2, pp. 531-546, 2010.
 R. Harbig, J. Sheridan, and M. Thompson, "Relationship between aerodynamic forces, flow structures and wing camber for rotating insect wing planforms,"Journal of Fluid Mechanics, vol. 730, pp. 52-75, 2013.
 R. Harbig, J. Sheridan, and M. Thompson, "Reynolds number and aspect ratio effects on the leading-edge vortex for rotating insect wing planforms," Journal of Fluid Mechanics, vol. 717, pp. 166-192, 2013.
 K. Hord and Y. Lian, "Numerical investigation of the aerodynamic and structural characteristics of a corrugated airfoil," Journal of Aircraft, vol. 49, no. 3, pp. 749-757, 2012.
 T. Flint, M. Jermy, T. New, and W. Ho, "Computational study of a pitching bio-inspired corrugated airfoil," International Journal of Heat and Fluid Flow, vol. 65, pp. 328-341, 2017.
 M. Seyednia, S. Vakilipour, and M. Masdari, "Numerical Investigation of Dynamic Stall over a Wind Turbine Pitching Airfoil by Using OpenFOAM," World Academy of Science, Engineering and Technology, International Journal of Mechanical, Aerospace, Industrial, Mechatronic and Manufacturing Engineering, vol. 11, no. 8, pp. 1466-1477, 2017.
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