Aerodynamic Flow Separation Control Using Active Flow Devices

Year : 2025 | Volume : 15 | Issue : 03 | Page : 1 7
    By

    V. Basil Hans,

  1. Research Professor, Department of Management & Commerce, Srinivas University, Mangalore, Karnataka, India

Abstract

Flow separation remains a significant challenge in aerodynamic applications, often leading to increased drag, loss of lift, and reduced efficiency in air and ground vehicles. This study investigates the use of active flow control (AFC) devices to mitigate flow separation and enhance aerodynamic performance. Active methods such as synthetic jets, plasma actuators, and pulsed blowing are examined for their ability to dynamically manipulate boundary layer behavior and delay or suppress separation. The study combines computational fluid dynamics (CFD) simulations with experimental data to assess the effectiveness of these techniques under various flow conditions and geometries. Results indicate that properly tuned active devices can significantly improve lift-to-drag ratios, delay stall onset, and maintain flow attachment over critical surfaces. The findings underscore the potential of AFC technologies for integration into advanced aerodynamic designs, particularly in aerospace and automotive engineering.

Keywords: Active flow control (AFC), flow separation, boundary layer manipulation, synthetic jets, plasma actuators

[This article belongs to Journal of Aerospace Engineering & Technology ]

How to cite this article:
V. Basil Hans. Aerodynamic Flow Separation Control Using Active Flow Devices. Journal of Aerospace Engineering & Technology. 2025; 15(03):1-7.
How to cite this URL:
V. Basil Hans. Aerodynamic Flow Separation Control Using Active Flow Devices. Journal of Aerospace Engineering & Technology. 2025; 15(03):1-7. Available from: https://journals.stmjournals.com/joaet/article=2025/view=228094


References

  1. Cattafesta III LN, Sheplak M. Actuators for active flow control. Annu Rev Fluid Mech. 2011 Jan 21; 43(1): 247–72.
  2. Corke TC, Enloe CL, Wilkinson SP. Dielectric barrier discharge plasma actuators for flow control. Annu Rev Fluid Mech. 2010; 42(1): 505–29.
  3. Corke TC, Post ML, Orlov DM. Single dielectric barrier discharge plasma enhanced aerodynamics: physics, modeling and applications. Exp Fluids. 2009 Jan; 46(1): 1–26.
  4. Pollard A, Bonnet JP, Gad-el-Hak M. Flow control: Current status and future prospects. Exp Therm Fluid Sci. 1998 Jan 1; 16(1–2): 157–64.
  5. Glezer A, Amitay M. Synthetic jets. Annu Rev Fluid Mech. 2002 Jan; 34(1): 503–29.
  6. Greenblatt D, Wygnanski IJ. The control of flow separation by periodic excitation. Prog Aerosp Sci. 2000 Oct 1; 36(7): 487–545.
  7. Mitchell BE, Lele SK, Moin P. Direct computation of the sound from a compressible co-rotating vortex pair. J Fluid Mech. 1995 Feb; 285: 181–202.
  8. Zong H, Chiatto M, Kotsonis M, De Luca L. Plasma synthetic jet actuators for active flow control. Actuators (MDPI). 2018 Nov 1; 7(4): 77.
  9. Newsome RW, Berkooz G, Bhaskaran R. Use of analytical flow sensitivities in static aeroelasticity. AIAA J. 1998 Aug; 36(8): 1537–40.
  10. Spalart PR. Strategies for turbulence modelling and simulations. Engineering Turbulence Modelling and Experiments; Elsevier Science Ltd. 1999 Jan 1; 4: 3–17.
  11. Spalart PR. Philosophies and fallacies in turbulence modeling. Prog Aerosp Sci. 2015 Apr 1; 74: 1–15.
  12. Huang P, Bardina J, Coakley T. Turbulence modeling validation, testing, and development. NASA Technical Memorandum 110446. California: NASA; 1997 Apr; 10-2514.
Regular Issue Subscription Review Article
Volume 15
Issue 03
Received 06/08/2025
Accepted 29/08/2025
Published 25/09/2025
Publication Time 50 Days
36


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