A synthetic jet is a time-averaged fluid motion generated by sufficient strong oscillatory flow downstream from a sudden expansion. The study of the interaction between the synthetic jet and an external flow is of great interest in particular for aeronautical applications. A network of such actuators could be used indeed on airplane wings for example to control, with a good energetic efficiency, the boundary layer separation in order to increase the lift or the laminar/turbulent transition for drag reduction. In this paper, the interaction of a sub-millimetric synthetic jet actuator with an external flow is experimentally studied. In these experiments, the actuation is ensured by acoustic excitations produced by a loud-speaker. Hot-wire anemometry is used for measurement of the velocity field in various functioning configurations (velocity of the transversal flow, actuation frequency, ...). In most of the tested configurations, the boundary layer of the transversal flow is significantly modified by the synthetic jet, which shows that these types of actuators could be efficiently used for flow control purposes.
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ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels
June 18–20, 2007
Puebla, Mexico
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4272-X
PROCEEDINGS PAPER
Behavior of a Mini Synthetic Jet in a Transverse Wall Flow: Experimental and Numerical Study
Ste´phane Colin,
Ste´phane Colin
LGMT-INSA, Toulouse, France
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Azeddine Kourta,
Azeddine Kourta
Institut de Me´canique des Fluides de Toulouse, Toulouse, France
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Henri-Claude Boisson
Henri-Claude Boisson
Institut de Me´canique des Fluides de Toulouse, Toulouse, France
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Ahmad Batikh
LGMT-INSA, Toulouse, France
Lucien Baldas
LGMT-INSA, Toulouse, France
Robert Caen
LGMT-INSA, Toulouse, France
Ste´phane Colin
LGMT-INSA, Toulouse, France
Azeddine Kourta
Institut de Me´canique des Fluides de Toulouse, Toulouse, France
Henri-Claude Boisson
Institut de Me´canique des Fluides de Toulouse, Toulouse, France
Paper No:
ICNMM2007-30103, pp. 651-660; 10 pages
Published Online:
May 28, 2009
Citation
Batikh, A, Baldas, L, Caen, R, Colin, S, Kourta, A, & Boisson, H. "Behavior of a Mini Synthetic Jet in a Transverse Wall Flow: Experimental and Numerical Study." Proceedings of the ASME 2007 5th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 5th International Conference on Nanochannels, Microchannels, and Minichannels. Puebla, Mexico. June 18–20, 2007. pp. 651-660. ASME. https://doi.org/10.1115/ICNMM2007-30103
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