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Descripción
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| The behaviour of vibrated fluids is of great interest in a variety of fields and can be very complex. Vertical vibrations are the most studied case because the basic (unexcited) state is quiescent in a co-moving reference frame. Horizontal vibrations are generally less straightforward to treat and have received less attention, especially in the limit in which the vibrating frequency is large compared to that of the fist capillarity-gravity sloshing mode. In this case, harmonic surface waves are always excited and, beyond a critical acceleration, subharmonic cross-waves are also triggered by a (harmonic) oscillatory bulk flow, which is slowly varying in space and extends over a distance comparable to the container depth. The exciting mechanism is analogous to that responsible for Faraday waves in vertically vibrated containers; the main difference is that the oscillatory pressure field is not uniform but dependent on distance from the end-walls. The resulting cross-waves are not perpendicular to the vibrating end-walls, as standard cross-waves produced by partially immersed wave makers typically are. A linear theory will be presented to calculate the threshold amplitude that compares well with experiments. As a byproduct, we obtain a general linear amplitude equation that governs pattern selection in containers of arbitrary cross-section | |
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Internacional
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Si |
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Nombre congreso
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XXXIII Dynamics Days Europe |
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Tipo de participación
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960 |
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Lugar del congreso
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Revisores
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No |
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ISBN o ISSN
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978-84-15302-43-8 |
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DOI
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Fecha inicio congreso
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03/06/2013 |
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Fecha fin congreso
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07/06/2013 |
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Desde la página
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179 |
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Hasta la página
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179 |
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Título de las actas
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Pattern formation in horizontally vibrated rectangular container |