Observatorio de I+D+i UPM

Memorias de investigación
Ponencias en congresos:
Pattern formation in horizontally vibrated rectangular container
Áreas de investigación
  • Simulacion numerica
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
Nombre congreso
XXXIII Dynamics Days Europe
Tipo de participación
Lugar del congreso
Fecha inicio congreso
Fecha fin congreso
Desde la página
Hasta la página
Título de las actas
Pattern formation in horizontally vibrated rectangular container
Esta actividad pertenece a memorias de investigación
  • Autor: Jose Miguel Perez de Gracia Delgado (UPM)
  • Autor: Fernando Varas Merida (UPM)
  • Autor: Jose Manuel Vega De Prada (UPM)
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Dinámica y estabilidad no lineal en ingeniería aeroespacial
  • Departamento: Fundamentos Matemáticos de la Tecnología Aeronáutica
S2i 2021 Observatorio de investigación @ UPM con la colaboración del Consejo Social UPM
Cofinanciación del MINECO en el marco del Programa INNCIDE 2011 (OTR-2011-0236)
Cofinanciación del MINECO en el marco del Programa INNPACTO (IPT-020000-2010-22)