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Article Dans Une Revue Physics of Fluids Année : 2007

Dynamics of Free Jets Submitted to Upstream Acoustic Modulations

Résumé

The response of low Reynolds number air jets to acoustic modulations is investigated with systematic experiments. Flow transfer functions, power spectral densities of the perturbations plotted in the form of space-frequency maps, instantaneous jet images recorded using laser tomography, and phase-conditioned velocity fields serve to identify the different regimes of motion. Results indicate that five regions can be distinguished in a diagram where the jet Strouhal number StD serves as a horizontal coordinate while the shear layer Strouhal number St
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Dates et versions

hal-00184036 , version 1 (30-10-2007)

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Anne-Laure Birbaud, Daniel Durox, Sébastien Ducruix, Sébastien M. Candel. Dynamics of Free Jets Submitted to Upstream Acoustic Modulations. Physics of Fluids, 2007, 19 (1-013602), pp.1-20. ⟨10.1063/1.2432156⟩. ⟨hal-00184036⟩
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