Abstract
This article experimentally investigates the self-excited impinging planar jet flow, specifically, the development and propagation of large-scale coherent flow structures convecting between the nozzle lip and the downstream impingement surface. The investigation uses phase-locked PIV measurements and a new structure-tracking scheme to measure convection velocity and characterize the impingement mechanism near the plate in order to develop a new feedback model that can be used to predict the oscillation frequency as a function of flow velocity (U o ), impingement distance (x o ) and nozzle thickness (h). The resulting model prediction shows a good agreement with experimental tone frequency data.
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References
Arthurs D, Ziada S (2012) Self-excited oscillations of a high-speed impinging planar jet. J Fluids Struct 34:236–258
Vollmers H (2001) Detection of vortices and quantitative evaluation of their main parameters from experimental velocity data. Meas Sci Technol 12:1199–1207
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© 2014 Springer-Verlag Berlin Heidelberg
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Arthurs, D., Ziada, S. (2014). Development of a Feedback Model for the Self-Excited Impinging Planar Jet. 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_4
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DOI: https://doi.org/10.1007/978-3-642-40371-2_4
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Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-40370-5
Online ISBN: 978-3-642-40371-2
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