| ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS |
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Flow separation control over an airfoil using continuous alternating current plasma actuator |
| Jian-Guo Zheng(郑建国)† |
| 1 School of Aerospace Engineering, Huazhong University of Science and Technology, Wuhan 430074, China |
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Abstract The flow separation control over an NACA 0015 airfoil using continuous alternating current (AC) dielectric barrier discharge (DBD) plasma actuator is investigated experimentally and numerically. This work is intended to report some observations made from our experiment, to which little attention is paid in the previous studies, but which is thought to be important to the understanding of control of complex flow separation with AC DBD. To this end, the response of separated flow to AC plasma actuation is visualized through the time-resolved particle image velocimetry (PIV) measurement, whereas numerical simulation is carried out to complement the experiment. The flow control process at chord-based Reynolds number (Re) of 3.31 × 105 is investigated. It is found that the response of external flow to plasma forcing is delayed for up to tens of milliseconds and the delay time increases with angle of attack increasing. Also observed is that at the intermediate angle of attack near stall, the forced flow features a well re-organized flow pattern. However, for airfoil at high post-stall angle of attack, the already well suppressed flow field can recover to the massively separated flow state and then reattach to airfoil surface with the flow pattern fluctuating between the two states in an irregular manner. This is contrary to one's first thought that the forced flow at any angles of attack will become well organized and regular, and reflects the complexity of flow separation control.
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Received: 24 July 2020
Revised: 14 October 2020
Accepted manuscript online: 17 December 2020
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PACS:
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47.32.Ff
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(Separated flows)
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47.32.C-
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(Vortex dynamics)
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47.85.L-
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(Flow control)
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72.30.+q
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(High-frequency effects; plasma effects)
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Corresponding Authors:
†Corresponding author. E-mail: zhengjg@hust.edu.cn
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Cite this article:
Jian-Guo Zheng(郑建国) Flow separation control over an airfoil using continuous alternating current plasma actuator 2021 Chin. Phys. B 30 034702
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1 Adamovich I, Baalrud S D, Bogaerts A, et al. 2017 J. Phys. D: Appl. Phys. 50 323001
2 Moreau E 2007 J. Phys. D: Appl. Phys. 40 605
3 Corke T, Enloe C and Wilkinson S P 2010 Ann. Rev. Fluid Mech. 42 505
4 Roth J R 2003 Phys. Plasma 10 2117
5 Forte M, Jolibois J, Pons J, Moreau E, Touchard G and Cazalens M 2007 Exp. Fluids 43 917
6 Corke T, Post M and Orlov D 2009 Exp. Fluids 46 1
7 Sosa R, Artana G, Moreau E and Touchard G 2007 Exp. Fluids 42 143
8 Jolibois J, Forte M and Moreau E 2008 J. Electrostat. 66 496
9 Sekimoto S, Nonomura T and Fujii K 2017 AIAA J. 55 1385
10 Jukes T N, Segawa T and Furutani H 2013 AIAA J. 51 452
11 Benard N, Jolibois J and Moreau E 2009 J. Electrostat. 67 133
12 Benard N and Moreau E 2011 Flow, Turbulence and Combustion 87 1
13 Gaitonde D V, Visbal M R and Roy S 2005 AIAA paper 5302
14 Sato M, Aono H, Yakeno A, Nonomura T, Fujii K, Okada K and Asada K 2015 AIAA J. 53 2544
15 Sato M, Nonomura T, Okada K, Asada K, Aono H, Yakeno A, Abe Y and Fujii K 2015 Phys. Fluids 27 117101
16 Moreau E, Debien A, Breux J M and Benard N 2016 J. Electrostat. 83 78
17 Zheng B R, Xue M and Ge C 2020 Chin. Phys. B 29 064703
18 Kelley C L, Bowles P O, Cooney J, He C, Corke T C, Osborne B A, Silkey J S,Zehnle J 2014 AIAA J. 52 1871
19 Chen K and Liang H 2016 Chin. Phys. B 25 024703
20 Su Z, Li J, Liang H, et al.2019 Chin. Phys. B 27 105205
21 Zhang X, Cui Y D, Tay C M J and Khoo B C 2020 Plasma Sources Sci. Technol. 29 015017
22 Zheng J G, Cui Y D, Zhao Z J, Li J and Khoo B C 2018 AIAA J. 56 2220
23 Zheng J G, Cui Y D, Zhao Z J, Li J and Khoo B C 2016 Phys. Rev. Fluids 1 073501
24 Shyy W, Jayaraman B and Andersson A 2002 J. Appl. Phys. 92 6434
25 Marco D and Li J M 2011 AIAA paper 954 |
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