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Descripción
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| Horizontal vibrations of rectangular containers first produce harmonic waves and then subharmonic waves as the forcing acceleration is increased. A theoretical analysis is performed that provides both the subharmonic instability threshold and the associated patterns. A key ingredient in the theory is an oscillatory bulk flow (OBF) produced by the vibrating container that extends horizontally to a length comparable with the container depth. The OBF involves harmonic temporal oscillations in the vertical pressure gradient at the free surface. It is precisely those pressure gradient oscillations that trigger subharmonic waves, as in the vertical forced Faraday instability. The obtained results compare well with experimental measurements/visualization that will also be presented. | |
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Internacional
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Si |
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Nombre congreso
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65th Annual Meeting of the APS Division of Fluid Dynamics |
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Tipo de participación
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960 |
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Lugar del congreso
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San Diego, California. EE.UU. |
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Revisores
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No |
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ISBN o ISSN
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11-1111-111-1 |
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DOI
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Fecha inicio congreso
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18/11/2012 |
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Fecha fin congreso
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20/11/2012 |
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Desde la página
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8 |
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Hasta la página
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8 |
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Título de las actas
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