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The effect of surface contamination on the drift instability of standing Faraday waves

Published online by Cambridge University Press:  21 December 2005

ELENA MARTÍN  and
JOSÉ M. VEGA
ELENA MARTÍN
Affiliation:
E. T. S. Ingenieros Industriales, Universidad de Vigo, Campus Lagoas, Marcosende, 9, 36200-Vigo, Pontevedra, Spain
JOSÉ M. VEGA
Affiliation:
E. T. S. Ingenieros Aeronáuticos, Universidad Politécnica de Madrid, Plaza Cardenal Cisneros, 3, 28040-Madrid, Spain
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Abstract

We consider the effect of surface contamination, modelled by Marangoni elasticity with insoluble surfactant and surface viscosity, in promoting drift instabilities in spatially uniform standing Faraday waves. It is seen that contamination enhances drift instabilities that lead to various steadily propagating and (both standing and propagating) oscillatory patterns. In particular, steadily propagating waves appear to be quite robust, as a seminal experiment by Douady, Fauve & Thual (1989).

Type
Papers
Information
Journal of Fluid Mechanics , Volume 546 , 10 January 2006 , pp. 203 - 225
Copyright
© 2005 Cambridge University Press

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