Aeroelastic instability in a jet-plate interaction

Abstract : A flexible sheet subject to a normal impinging air jet can oscillate. We present a simple experiment that shows that added damping generated by the jet is responsible for this aeroelastic instability. The cases of planar jet and circular jet are studied. A model is presented to describe this instability and the results agree well with the experimental observations. The nozzle geometry is found to be a dominant parameter that drives the critical distance between the jet and the sheet, under which the instability develops. To cite this article: M. Antoine et al., C. R. Mecanique 335 (2007). © 2007 Académie des sciences.
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Submitted on : Friday, July 11, 2014 - 4:29:36 PM
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Maxime Antoine, Pascal Hémon, Emmanuel de Langre. Aeroelastic instability in a jet-plate interaction. Comptes Rendus Mécanique, Elsevier Masson, 2007, 335 (11), pp.691-695. ⟨10.1016/j.crme.2007.07.006⟩. ⟨hal-01022815⟩

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