Abstract
Active control of the diffusion of a circular jet was attempted by application of a secondary film flow around the jet. Sinusoidal acoustic excitation of the film flow was carried out for VR values 0.5, where VR is the ratio of the film flow velocity to the main jet velocity. For VR = 0.5, the diffusion of the jet was suppressed compared to that of a single jet but it was somewhat enhanced by the acoustic excitation. We conclude that secondary film flow can control diffusion and that acoustic excitation can enhance the diffusion of jet flows. In this paper, it was re-configuration to confirm the condition of the diffusion suppression of the jet. It has analyzed the jet structure by visualization experiment.
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References
K.B.M.Q. Zaman, A.K.M.F. Hussain, Vortex pairing in a circular jet under controlled excitation. Part 1. General jet response. J. Fluid Mech. 101, 449–491 (1980)
H. Suzuki, N. Kasagi, Y. Suzuki, Active control of an axisymmetric jet with distributed electromagnetic flap actuators. Exp. Fluids 36, 498–509 (2004)
W.C. Reynolds, M.J.D. Lee, Bifurcating jet and blooming jet. Annu. Rev. Fluid Mech. 35, 295–315 (2003)
N. Miyagi, M. Kimura, H. Shouji, H. Fujita, K. Hodoya, Study of active jet control by acoustically driven secondary film flow-influence of velocity ratio and acoustic strouhal number. JSME Int J., Ser. B 49, 974–979 (2006)
N. Miyagi, H. Fujita, M. Kimura, H. Shouji, Jet diffusion control by acoustically driven secondary film flow visualization of controlled jet structure, in International Heat Transfer Conference (2006b). doi:10.1615/IHTC13.p16.200
N. Miyagi, M. Kimura, Study of buoyant jet control by acoustically driven secondary film flow, in Proceedings of KSME-JSME 8th TFEC, USB (2012)
K. Toyoda, R. Hiramoto, Effect of streamwise vortices on characteristics of jets. JSME Int. J. Ser. B Fluids Therm. Eng. 49(4), 884–889 (2006)
J.E. Martin, E. Meiburg, Numerical investigation of three-dimensionally evolving jets subject to axisymmetric and azimuthal perturbations. J. Fluid Mech. 230, 271–318 (1991)
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Miyagi, N., Kimura, M. (2016). Diffusion Control of Jet by Acoustically Driven Secondary Film Flow. In: Segalini, A. (eds) Proceedings of the 5th International Conference on Jets, Wakes and Separated Flows (ICJWSF2015). Springer Proceedings in Physics, vol 185. Springer, Cham. https://doi.org/10.1007/978-3-319-30602-5_11
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DOI: https://doi.org/10.1007/978-3-319-30602-5_11
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