Abstract
At very high angles of attack, the leading-edge vortex of a semi-slender delta wing becomes unsteady and collapses, endangering the flight stability. Active flow control by pulsed blowing stabilizes the vortex system, enlarging the flight envelope for such wing configurations. The reattachment of the separated shear layer during post-stall causes a lift increase of more than 50% and offers a great perspective for active flow control in aeronautical applications. However, the interactions of shear layer vortices with the jet-induced vortices are complex. This paper attempts to shed a light on the flow field response to pulsed blowing at the leading edge of a generic half delta wing model with a \(65^\circ \) sweep angle based on detached eddy simulations.
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Gursul, I., Wang, Z., Vardaki, E.: Review of flow control mechanisms of leading-edge vortices. Prog. Aerosp. Sci. 43, 246–270 (2007). https://doi.org/10.1016/j.paerosci.2007.08.001
Hall, M.G.: Vortex breakdown. Ann. Rev. Fluid Mech. 4, 195–218 (1972). https://doi.org/10.1146/annurev.fl.04.010172.001211
Schmücker, A., Gersten, K.: Vortex breakdown and its control on delta wings. Fluid Dyn. Res. 3(1–4), 268–272 (1988). https://doi.org/10.1016/0169-5983(88)90077-9
Mitchell, A.M., Morton, S.A., Molton, P., Guy, Y.: Flow control of vortical structures and vortex breakdown over slender wings. In: RTO Applied Vehicle Technology Panel (AVT) Symposium, Leon, Norway (2001)
Greenblatt, D., Wygnanski, I.: The control of flow separation by periodic excitation. Prog. Aerosp. Sci. 36(7), 487–545 (2000). https://doi.org/10.1016/S0376-0421(00)00008-7
Guy, Y., Morrow, J.A., McLaughlin, T.E.: Control of vortex breakdown on a delta wing by periodic blowing and suction. In: 37th AIAA Aerospace Sciences Meeting and Exhibit, AIAA 99-0132, Reno NV (1999). https://doi.org/10.2514/6.1999-132
Margalit, S., Greenblatt, D., Seifert, A., Wygnanski, I.: Delta wing stall and roll control using segmented piezoelectric fluidic actuators. J. Aircraft 42(3), 678–709 (2005). https://doi.org/10.2514/1.6904
Gu, W., Robinson, O., Rockwell, D.: Control of vortices on a delta wing by leading-edge injection. AIAA J. 31(7), 1177–1186 (1993). https://doi.org/10.2514/3.11749
Gad-El-Hak, M., Blackwelder, R.F.: Control of the discrete vortices from a delta wing. AIAA J. 25(8), 1042–1049 (1987). https://doi.org/10.2514/3.9740
Kölzsch, A., Breitsamter, C.: Vortex flow manipulation on a generic delta-wing configuration. J. Aircraft 51(5), 1380–1390 (2014). https://doi.org/10.2514/1.C032231
Buzica, A., Bartasevicius, J., Breitsamter, C.: Experimental investigation of high-incidence delta-wing flow control. Exp. Fluids 58, 131 (2017). https://doi.org/10.1007/s00348-017-2408-9
Bartasevicius, J., Buzica, A., Breitsamter, C.: Discrete vortices on delta wings with unsteady leading-edge blowing. In: 8th AIAA Flow Control Conference, AIAA 2016-3170, Washington DC (2016). https://doi.org/10.2514/6.2016-3170
Buzica, A., Biswanger, M., Breitsamter, C.: Detached eddy-simulation of delta-wing post-stall flow control. Transp. Res. Proc. 29, 46–57 (2018). https://doi.org/10.1016/j.trpro.2018.02.005
Breitsamter, C.: Unsteady flow phenomena associated with leading-edge vortices. Prog. Aerosp. Sci. 44, 48–56 (2008). https://doi.org/10.1016/j.paerosci.2007.10.002
Hummel, D.J.: The international vortex flow experiment 2 (VFE-2): background, objectives and organization. Aerosp. Sci. Technol. 24(1), 1–9 (2013). https://doi.org/10.1016/j.ast.2012.08.008
Strelets, M.: Detached eddy simulation of massively separated flows. In: 39th Aerospace Sciences Meeting and Exhibit, AIAA 2001-0879, Reno NV (2001). https://doi.org/10.2514/6.2001-879
Menter, F.R., Kunz, M.: Adaptation of eddy-viscosity turbulence models to unsteady separated flow behind vehicles. In: McCallen R., Browand F., Ross J. (eds.), The Aerodynamics of Heavy Vehicles: Trucks, Buses, and Trains. Lecture Notes in Applied and Computational Mechanics, vol. 19, pp. 339–352. Springer, Berlin, Heidelberg (2004). https://doi.org/10.1007/978-3-540-44419-0_30
Spalart, P.R., Street, C.: Young-person’s guide to detached-eddy simulation grids. Boeing Commercial Airplanes, NASA/CR-2001-211032, Washington, Seattle (2001)
Schmid, P.J.: Dynamic mode decomposition of numerical and experimental data. J. Fluid Mech. 656, 5–28 (2010). https://doi.org/10.1017/S0022112010001217
Acknowledgements
The authors acknowledge the project funding by the “Deutsche Forschungsgemeinschaft” (DFG, German Research Association), Grant Number BR-1511/6-2. In addition, the authors thank ANSYS Germany and the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) for funding this project by providing computing licences and computing time on the GCS Supercomputer SuperMUC at Leibniz Supercomputing Center (www.lrz.de), respectively.
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Buzica, A., Breitsamter, C. (2021). Manipulation of Leading-Edge Vortex Flow. In: Radespiel, R., Semaan, R. (eds) Fundamentals of High Lift for Future Civil Aircraft. Notes on Numerical Fluid Mechanics and Multidisciplinary Design, vol 145. Springer, Cham. https://doi.org/10.1007/978-3-030-52429-6_9
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