Transonic Buffet Control Research on Supercritical Wing Using Rear-Mounted Bump
Publication: Journal of Aerospace Engineering
Volume 31, Issue 5
Abstract
The transonic buffet over large aircraft wings seriously affects flight safety and ride comfort; hence, improving transonic buffet characteristics by active or passive control methods has been the focus issue of international researchers. Current research shows that shock control bump (SCB) can decrease shock strength effectively at design conditions and improve buffet characteristics by eliminating shock-foot separation. However, SCB will enhance shock strength or produce a secondary shock at off-design conditions. This paper reveals that when the bump was mounted behind the shock position on the upper wing, it can delay the shock-foot separation merged with trailing edge separation in a wide range of free-stream Mach numbers and improve buffet characteristics. Based on the discovery, three-dimensional studies on Wing1, which was released during the Third Drag Prediction Workshop, were presented in this paper. A full-span bump was added on Wing1 at the rearward position behind the shock, and then buffet characteristics of the basic wing and the wing with bump were analyzed using Reynolds-averaged Navier–Stokes and unsteady Reynolds-averaged Navier–Stokes methods. The results show that the bump can improve the buffet performance of Wing1 over a wide range of free-stream conditions; however, it may deteriorate the aerodynamic performance at prebuffet conditions and improve the aerodynamic performance near the buffet-onset conditions.
Get full access to this article
View all available purchase options and get full access to this article.
Acknowledgments
This research did not receive any specific grant from funding agencies in the public, commercial, or not-for-profit sectors.
References
Brunet, V., and S. Deck. 2008. “Zonal-detached eddy simulation of transonic buffet on a civil aircraft type configuration.” In Vol. 97 of Advances in hybrid RANS-LES modelling: Notes on numerical fluid mechanics and multidisciplinary design, edited by S. H. Peng and W. Haase, 182–191. Berlin, Germany: Springer.
Caruana, D., A. Mignosi, M. Correge, and A. Le Pourhiet. 2003. “Buffeting active control in transonic flow.” In Proc., AIAA 21st Applied Aerodynamics Conf., 3667. Reston, VA: American Institute of Aeronautics and Astronautics.
Chung, I., D. Lee, and T. Reu. 2002. “Prediction of transonic buffet onset for an airfoil with shock induced separation bubble using steady Navier-Stokes solver.” In Proc., 20th AIAA Applied Aerodynamics Conf., 2934. Reston, VA: American Institute of Aeronautics and Astronautics.
Dandois, J. 2016. “Experimental study of transonic buffet phenomenon on a 3D swept wing.” Phys. Fluids 28 (1): 016101. https://doi.org/10.1063/1.4937426.
Deck, S. 2005. “Numerical simulation of transonic buffet over a supercritical airfoil.” AIAA J. 43 (7): 1556–1566. https://doi.org/10.2514/1.9885.
Eastwood, J. P., and J. P. Jarrett. 2012. “Toward designing with three-dimensional bumps for lift/drag improvement and buffet alleviation.” AIAA J. 50 (12): 2882–2898. https://doi.org/10.2514/1.J051740.
Fulker, J. L. 1999. “The EUROSHOCK Programme (A European programme on active and passive control of shock waves).” In Proc., 17th Applied Aerodynamics Conf., 562. Reston, VA: American Institute of Aeronautics and Astronautics.
Giannelis, N. F., G. A. Vio, and O. Levinski. 2017. “A review of recent developments in the understanding of transonic shock buffet.” Prog. Aerosp. Sci. 92: 39–84. https://doi.org/10.1016/j.paerosci.2017.05.004.
Hartmann, A., A. Feldhusen, and W. Schröder. 2013. “On the interaction of shock waves and sound waves in transonic buffet flow.” Phys. Fluids. 25 (2): 026101. https://doi.org/10.1063/1.4791603.
Hartmann, A., M. Klaas, and W. Schröder. 2012. “Time-resolved stereo PIV measurements of shock-boundary layer interaction on a supercritical airfoil.” Exp. Fluids. 52 (3): 591–604. https://doi.org/10.1007/s00348-011-1074-6.
Humphreys, M. D. 1951. Pressure pulsations on rigid airfoils at transonic speeds. Washington, DC: National Advisory Committee for Aeronautics.
Iovnovich, M., and D. E. Raveh. 2012. “Reynolds-averaged Navier-Stokes study of the shock-buffet instability mechanism.” AIAA J. 50 (4): 880–890. https://doi.org/10.2514/1.J051329.
Iovnovich, M., and D. E. Raveh. 2015. “Numerical study of shock buffet on three-dimensional wings.” AIAA J. 53 (2): 449–463. https://doi.org/10.2514/1.J053201.
Jacquin, L., P. Molton, S. Deck, B. Maury, and D. Soulevant. 2009. “Experimental study of shock oscillation over a transonic supercritical profile.” AIAA J. 47 (9): 1985–1994. https://doi.org/10.2514/1.30190.
Jenkins, R. V. 1989. NASA SC (2)-0714 airfoil data corrected for sidewall boundary-layer effects in the Langley 0.3-meter transonic cryogenic tunnel. NASA-TP-2890. Washington, DC: NASA.
Krist, S. L., R. T. Biedron, and C. L. Rumsey. 1998. CFL3D user’s manual (version 5.0). Washington, DC: National Aeronautics and Space Administration.
Lee, B. H. K. 2001. “Self-sustained shock oscillations on air-foils at transonic speeds.” Prog. Aerosp. Sci. 37 (2): 147–196. https://doi.org/10.1016/S0376-0421(01)00003-3.
Masini, L., S. Timme, A. Ciarella, and A. Peace. 2017. “Influence of vane vortex generators on transonic wing buffet: Further analysis of the bucolic experimental dataset.” In Proc., 52nd 3AF Int. Conf. on Applied Aerodynamics. Paris, France: French Aeronautics and Space Society (3AF).
McDevitt, J. B. 1979. Supercritical flow about a thick circular arc airfoil. Washington, DC: National Aeronautics and Space Administration.
McDevitt, J. B., L. L. Levy, and G. S. Deiwert. 1976. “Transonic flow about a thick circular-arc airfoil.” AIAA J. 14 (5): 606–613. https://doi.org/10.2514/3.61402.
McDevitt, J. B., and A. F. Okuno. 1985. Static and dynamic pressure measurements on a NACA 0012 airfoil in the Ames High Reynolds Number Facility. Washington, DC: National Aeronautics and Space Administration.
Molton, P., J. Dandois, A. Lepage, V. Brunet, and R. Bur. 2013. “Control of buffet phenomenon on a transonic swept wing.” AIAA J. 51 (4): 761–772. https://doi.org/10.2514/1.J051000.
Pearcey, H. H. 1958. A method for the prediction of the onset of buffeting and other separation effects from wind tunnel tests on rigid models. Paris, France: Advisory Group for Aeronautical Research and Development.
Pearcey, H. H., and D. W. Holder. 1962. Simple methods for the prediction of wing buffeting and other buffeting resulting from bubble type separation. London, UK: National Physical Laboratory.
Rumsey, C. L., M. D. Sanetrik, R. T. Biedron, N. D. Melson, and E. B. Parlette. 1996. “Efficiency and accuracy of time-accurate turbulent Navier-Stokes computations.” Comput. Fluids 25 (2): 217–236. https://doi.org/10.1016/0045-7930(95)00043-7.
Sobieczky, H. 1999. “Parametric airfoils and wings.” In Notes on numerical fluid mechanics, 71–88. Wiesbaden, Germany: Vieweg.
Stanewsky, E. 2002. In Vol. 80 of Drag reduction by shock and boundary layer control: Results of the project EUROSHOCK II. Supported by the European Union 1996-1999. New York, NY: Springer.
Tian, Y., P. Q. Liu, and P. H. Feng. 2011a. “Shock control bump parametric research on supercritical airfoil.” Sci. China: Technol. Sci. 54 (11): 2935–2944. https://doi.org/10.1007/s11431-011-4582-y.
Tian, Y., P. Q. Liu, and J. Peng. 2011b. “Using shock control bump to improve transonic buffet boundary of airfoil.” [In Chinese.] Acta Aeronaut. Astronaut. Sin. 32 (8): 1421–1428.
Wong, W. S., N. Qin, N. Sellars, H. A. Holden, and H. Babinsky. 2008. “A combined experimental and numerical study of flow structures over three-dimensional shock control bumps.” Aerosp. Sci. Technol. 12 (6): 436–447. https://doi.org/10.1016/j.ast.2007.10.011.
Xiong, J. T., and F. Liu. 2013. “Numerical simulation of transonic buffet on swept wing of supercritical airfoils.” In Proc., AIAA 43rd Fluid Dynamics Conf., 3205. Reston, VA: American Institute of Aeronautics and Astronautics.
Xiong, J. T., F. Liu, and S. J. Luo. 2012. “Computation of NACA0012 airfoil transonic buffet phenomenon with unsteady Navier-Stokes equations.” In Proc., 50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition, Aerospace Sciences Meetings. Reston, VA: American Institute of Aeronautics and Astronautics.
Information & Authors
Information
Published In
Copyright
©2018 American Society of Civil Engineers.
History
Received: Jul 4, 2017
Accepted: Feb 2, 2018
Published online: May 29, 2018
Published in print: Sep 1, 2018
Discussion open until: Oct 29, 2018
Authors
Metrics & Citations
Metrics
Citations
Download citation
If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download.