Abstract
The end-effects of a finite synthetic jet used for controlling the flow around a two-dimensional circular cylinder are experimentally investigated in this study. The Reynolds number based on the cylinder diameter is Re = 800, and the corresponding natural vortex shedding frequency f 0 is 0.24 Hz (St = 0.21). The synthetic jet is actuated at excitation frequency f e /f 0 = 2.08, with the equivalent momentum coefficient C μ = 0.139. Six x–y planes of view from the mid-span to one of the slot ends with identical interval 5 mm are measured using two-dimensional time-resolved PIV system. It is found that the end-effects of the finite synthetic jet do not have a crucial influence on flow fields in the mid-span regions, which are independent of the slot length if it is longer than one cylinder diameter.
Supported by the National Natural Science Foundation of China (Grant no. 11202015).
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References
Amitay M, Honohan A, Trautman M, Glezer A (1997) Modification of the aerodynamic characteristics of bluff bodies using fluidic actuators. AIAA paper 97–2004
Béra JC, Michard M, Sunyach M, Comte-Bellot G (2000) Changing lift and drag by jet oscillation: experiments on a circular cylinder with turbulent separation. Eur J Mech B/Fluids 19:575–595
Feng LH, Wang JJ (2010) Circular cylinder vortex-synchronization control with a synthetic jet positioned at the rear stagnation point. J Fluid Mech 662:232–259
Feng LH, Wang JJ (2012) Synthetic jet control of separation in the flow over a circular cylinder. Exp Fluids 53:467–480
Feng LH, Wang JJ, Pan C (2010) Effect of novel synthetic jet on wake vortex shedding modes of a circular cylinder. J Fluid Struct 26:900–917
Feng LH, Wang JJ, Pan C (2011) Proper orthogonal decomposition analysis of vortex dynamics of a circular cylinder under synthetic jet control. Phys Fluids 23:014106
Ma LQ, Feng LH (2013) Experimental investigation on control of vortex shedding mode of a circular cylinder using synthetic jets placed at stagnation points. Sci China Tech Sci 56:158–170
Ma M, Karamanos G-S, Karniadakis GE (2000) Dynamics and low-dimensionality of a turbulent near wake. J Fluid Mech 410:29–65
Tensi J, Boué I, Paillé F, Dury G (2002) Modification of the wake behind a circular cylinder by using synthetic jets. J Vis 5:37–44
Wang JJ, Feng LH, Xu CJ (2007) Experimental investigations on separation control and flow structure around a circular cylinder with synthetic jet. Sci China Ser E-Tech Sci 50:550–559
Zhang PF, Wang JJ, Feng LH (2008) Review on the zero-net-mass-flux jet and its application in separation flow control. Sci China Ser E-Tech Sci 51:1315–1344
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Feng, LH., Ma, LQ., Wang, JJ. (2014). End-Effects of a Finite Synthetic Jet on Flow Control. In: Zhou, Y., Liu, Y., Huang, L., Hodges, D. (eds) Fluid-Structure-Sound Interactions and Control. Lecture Notes in Mechanical Engineering. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-40371-2_18
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DOI: https://doi.org/10.1007/978-3-642-40371-2_18
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