Abstract
This study investigates the three-dimensionality of synthetic jet flow control over a NACA 0025 profile wing using horizontal and vertical smoke wire visualization. The stalled flow in the baseline case is visualized, providing insights into the shear layer roll-up process, the transition to turbulence, and vortex shedding in the wake. In the controlled flow study, two actuation frequencies, \(F^+=1.18\) and \(F^+=11.76\), are investigated, with a focus on spanwise control authority and the role of coherent structures in flow reattachment. The results indicate that while the control is effective at the midspan over the entire chord length, its effect diminishes with increasing distance from the midspan. Both control cases result in significant spanwise velocities, observed by a contraction of the flow toward midspan. Lastly, the high-frequency actuation results in unique small-scale structures at the shear layer-freestream interface.
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References
Amitay M, Glezer A (2002) Role of actuation frequency in controlled flow reattachment over a stalled airfoil. AIAA J 40(2):209–216. https://doi.org/10.2514/2.1662. (ISSN 0001-1452)
Amitay M, Smith DR, Kibens V, Parekh DE, Glezer A (2001) Aerodynamic flow control over an unconventional airfoil using synthetic jet actuators. AIAA J 39(3):361–370. https://doi.org/10.2514/2.1323. (ISSN 0001-1452)
Andino MY, Lin JC, Washburn AE, Whalen EA, Graff EC, Wygnanski IJ (2015) Flow separation control on a full-scale vertical tail model using sweeping jet actuators. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2015-0785. (ISBN 978-1-62410-343-8)
Balzer W, Fasel H (2010) Direct numerical simulation of laminar boundary-layer separation and separation control on the suction side of an airfoil at low reynolds number conditions. American Institute of Aeronautics and Astronautics. https://doi.org/10.2514/6.2010-4866. (ISBN 978-1-60086-956-3)
Batill SM, Mueller TJ (1981) Visualization of transition in the flow over an airfoil using the smoke-wire technique. AIAA J 19(3):340–345. https://doi.org/10.2514/3.50953. (ISSN 0001-1452)
Di Cicca GM, Iuso G (2007) On the near field of an axisymmetric synthetic jet. Fluid Dyn Res 39(9):673–693. https://doi.org/10.1016/j.fluiddyn.2007.03.002. (ISSN 0169-5983)
Feero MA, Goodfellow SD, Lavoie P, Sullivan PE (2015) Flow reattachment using synthetic jet actuation on a low-reynolds-number airfoil. AIAA J 53(7):2005–2014. https://doi.org/10.2514/1.J053605. (ISSN 0001-1452)
Feero MA, Lavoie P, Sullivan Pierre E (2017a) Three-dimensional span effects of high-aspect ratio synthetic jet forcing for separation control on a low reynolds number airfoil. J Vis. https://doi.org/10.1007/s12650-016-0365-7. (ISSN 18758975)
Feero MA, Lavoie P, Sullivan PE (2017b) Influence of synthetic jet location on active control of an airfoil at low reynolds number. Exp Fluids. https://doi.org/10.1007/s00348-017-2387-x. (ISSN 07234864)
Glezer A, Amitay M, Honohan Andrew M (2005) Aspects of low- and high-frequency actuation for aerodynamic flow control. AIAA J 43(7):1501–1511. https://doi.org/10.2514/1.7411. (ISSN 0001-1452)
Greenblatt D, Wygnanski IJ (2000) The control of flow separation by periodic excitation. Prog Aerosp Sci 36(10):487–545. https://doi.org/10.1016/S0376-0421(00)00008-7. (ISSN 03760421)
Ho HH, Essel EE, Sullivan PE (2022) The interactions of a circular synthetic jet with a turbulent crossflow. Phys Fluids 10(1063/5):0099533 (ISSN 1070-6631)
Kirk TM, Yarusevych S (2017) Vortex shedding within laminar separation bubbles forming over an airfoil. Exp Fluids 58(5):43. https://doi.org/10.1007/s00348-017-2308-z. (ISSN 0723-4864)
Rice TT, Taylor K, Amitay M (2018) Quantification of the s817 airfoil aerodynamic properties and their control using synthetic jet actuators. Wind Energy 21(10):823–836. https://doi.org/10.1002/we.2197. (ISSN 10954244)
Salunkhe P, Tang H, Zheng Y, Wu Y (2016) Piv measurement of mildly controlled flow over a straight-wing model. Int J Heat Fluid Flow 62(12):552–559. https://doi.org/10.1016/j.ijheatfluidflow.2016.08.004. (ISSN 0142727X)
Seifert A, Pack LG (1999) Oscillatory control of separation at high reynolds numbers. AIAA J 37(9):1062–1071. https://doi.org/10.2514/2.834. (ISSN 0001-1452)
Smith BL, Swift GW (2003) A comparison between synthetic jets and continuous jets. Exp Fluids 34(4):467–472. https://doi.org/10.1007/s00348-002-0577-6. (ISSN 0723-4864)
Tang H, Salunkhe P, Zheng Y, Du J, Wu Y (2014) On the use of synthetic jet actuator arrays for active flow separation control. Exp Therm Fluid Sci 57(9):1–10. https://doi.org/10.1016/j.expthermflusci.2014.03.015. (ISSN 08941777)
Tousi NM, Coma M, Bergadá JM, Pons-Prats J, Mellibovsky F, Bugeda G (2021) Active flow control optimisation on sd7003 airfoil at pre and post-stall angles of attack using synthetic jets. Appl Math Model 98(10):435–464. https://doi.org/10.1016/j.apm.2021.05.016. (ISSN 0307904X)
Toyoda K, Hiramoto R (2009) Manipulation of vortex rings for flow control. Fluid Dyn Res 41(10):051402. https://doi.org/10.1088/0169-5983/41/5/051402. (ISSN 0169-5983)
Xu K, Lavoie P, Sullivan P (2023) Flow reattachment on a naca 0025 airfoil using an array of microblowers. AIAA J https://doi.org/10.2514/1.J062512. (ISSN 0001-1452)
Yang E, Ekmekci A, Sullivan PE (2022) Phase evolution of flow controlled by synthetic jets over naca 0025 airfoil. J Vis 25(8):751–765. https://doi.org/10.1007/s12650-021-00824-5. (ISSN 1343-8875)
Yarusevych S, Kawall JG, Sullivan PE (2008) Separated-shear-layer development on an airfoil at low reynolds numbers. AIAA J 46:3060–3069. https://doi.org/10.2514/1.36620. (ISSN 00011452)
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This research was funded by Natural Sciences and Engineering Research Council of Canada (NSERC) grant number RGPIN-2022-03071 and the Digital Research Alliance of Canada (4752).
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Machado, A., Xu, K. & Sullivan, P.E. Visualizing three-dimensional effects of synthetic jet flow control. J Vis (2024). https://doi.org/10.1007/s12650-024-00992-0
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DOI: https://doi.org/10.1007/s12650-024-00992-0