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Memorias de investigación
Communications at congresses:
Pattern formation in horizontally vibrated rectangular container
Year:2013
Research Areas
  • Numerical simulation
Information
Abstract
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
International
Si
Congress
XXXIII Dynamics Days Europe
960
Place
Reviewers
No
ISBN/ISSN
978-84-15302-43-8
Start Date
03/06/2013
End Date
07/06/2013
From page
179
To page
179
Pattern formation in horizontally vibrated rectangular container
Participants
  • Autor: Jose Miguel Perez de Gracia Delgado (UPM)
  • Autor: Fernando Varas Merida (UPM)
  • Autor: Jose Manuel Vega De Prada (UPM)
Research Group, Departaments and Institutes related
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
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