Similarity analysis of a glottal-like jet

Abstract : This work discloses similarity properties of a high-aspect-ratio pulsating jet with lateral confinement exhibiting axis switching in a region close to the jet exit. The analysis is conducted separately within the major and minor planes of the jet source. The similarity relations derived from the in-plane flow equations are combined with experimental data collected in a recent three-dimen- sional velocimetry study of a glottal-like jet. Empirically, non-collapsing profiles are shown to rescale as collapsing profiles in the similarity variables within ranges of the streamwise coordinate, which are determined by the anal- ysis. The similarity properties are shown to be useful to make predictions on the jet axis-switching characteristics.
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Submitted on : Monday, September 3, 2012 - 10:33:34 AM
Last modification on : Saturday, May 4, 2019 - 1:18:24 AM
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Denisse Sciamarella, Fabrice Silva, Guillermo Artana. Similarity analysis of a glottal-like jet. Experiments in Fluids, Springer Verlag (Germany), 2012, 53 (3), pp.765-776. ⟨10.1007/s00348-012-1327-z⟩. ⟨hal-00727186⟩



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