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http://dx.doi.org/10.5407/JKSV.2016.14.3.022

Flow Visualization of a jet generated by a sweeping jet actuator  

Park, Tongil (KAIST)
Kim, Daegyoum (KAIST)
Publication Information
Journal of the Korean Society of Visualization / v.14, no.3, 2016 , pp. 22-27 More about this Journal
Abstract
A sweeping jet actuator (SJA) is an instrument generating pulsing jets with no moving elements. Because of its simple design and high durability to shock and vibration, SJA has recently drawn increasing attention for the application to flow control such as aerodynamic control of a wing and thrust vectoring of a jet engine. However, experimental and numerical studies on SJA have been limited to internal flow structure of SJA. In this study, we investigated the flow structure and its variation in the outlet of SJA. We carried out the experiment to understand the flow structures using PIV (Particle Image Velocimetry). The flow structure varies with a degree of the outlet and volume flow rate. There is leaking process during half jetting cycle. The process of the main jet can occur because the jet moving time increased from one side to the other side.
Keywords
Flow Visualization; Fluid Actuator; Jet;
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  • Reference
1 Kara, Kursat., 2015, "Numerical Study of Internal Flow Structures in a Sweeping Jet Actuator." 33rd AIAA Applied Aerodynamics Conference.
2 Woszidlo, Rene, et al., 2010, "Parametric study of sweeping jet actuators for separation control.", 5th AIAA Flow Control Conference. Vol. 28.
3 Bobusch, Bernhard C., et al., 2013, "Experimental study of the internal flow structures inside a fluidic oscillator." Exp. Fluids 54.6, pp. 1-12.
4 Gokoglu, Suleyman A., et al., 2009, "Numerical studies of a fluidic diverter for flow control." 39th AIAA Fluid Dynamics conference.
5 Cattafesta III, Louis N., and Mark Sheplak., 2011, "Actuators for active flow control.", Annu. Rev. Fluid Mech. 43, pp. 247-272.   DOI
6 Seele, Roman, et al., 2012, "Improving rudder effectiveness with sweeping jet actuators." 6th AIAA Flow Control Conference.
7 Raman, G., et al., 2005, "Jet thrust vectoring using a miniature fluidic oscillator." Aeronautical Journal 109.1093, pp. 129-138.   DOI