Aeroelastic instability of plate subject to normal jet

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.
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Conference papers
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Submitted on : Monday, July 21, 2014 - 4:32:34 PM
Last modification on : Wednesday, March 27, 2019 - 4:39:25 PM

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  • HAL Id : hal-01026002, version 1

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M. Antoine, P. Hemon, E. de Langre. Aeroelastic instability of plate subject to normal jet. 9th International Conference on Flow-Induced Vibrations, Jun 2008, Prague, Czech Republic. pp.323-326. ⟨hal-01026002⟩

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