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Article Dans Une Revue Physical Review Letters Année : 2013

Excitation of fountain and entrainment instabilities at the interface between two viscous fluids using a beam of laser light

Résumé

We report on two instabilities called viscous fountain and viscous entrainment triggered at the interface between two liquids by the action of bulk flows driven by a laser beam. These streaming flows are due to light scattering losses in turbid liquids, and can be directed either toward or forward the interface. We experimentally and numerically investigate these interface instabilities and show that the height and curvature of the interface deformation at the threshold and the jet radius after interface destabilization mainly depend on the waist of the laser beam. Analogies and differences between these two instabilities are characterized.
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hal-00847571 , version 1 (23-07-2013)

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Paternité - Pas d'utilisation commerciale

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Hamza Chraibi, Julien Petit, Régis Wunenburger, Jean-Pierre Delville. Excitation of fountain and entrainment instabilities at the interface between two viscous fluids using a beam of laser light. Physical Review Letters, 2013, 111 (4), pp.044502 (1-5). ⟨10.1103/PhysRevLett.111.044502⟩. ⟨hal-00847571⟩
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