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Article Dans Une Revue Journal of Fluid Mechanics Année : 2015

Inviscid vs viscous instability mechanism of an air-water mixing layer

Résumé

We study how confinement affects the viscous spatio-temporal instability of a two-phase mixing layer. We show that the absolute instability triggered by the inclusion of finite liquid and gas thicknesses leads to a good prediction of experimental data. In addition, this new mechanism provides a justification for the relevance of both simplified inviscid scaling laws and more sophisticated viscous approaches.
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Dates et versions

hal-01130125 , version 1 (11-03-2015)

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Jean-Philippe Matas. Inviscid vs viscous instability mechanism of an air-water mixing layer. Journal of Fluid Mechanics, 2015, 768, pp.375-387. ⟨10.1017/jfm.2015.106⟩. ⟨hal-01130125⟩

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