English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/5308
COMPARTIR / IMPACTO:
Estadísticas
logo share SHARE   Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:
Título

Numerical study of particle motion in a standing wave including nonlinear interactions

AutorGonzález Gómez, Icíar
Palabras claveParticle motion
Plane standing wave
Numerical simulation
Nonlinear interactions
Fecha de publicacióndic-2007
EditorSociedad Española de Acústica
CitaciónXIX Congreso Internacional de Acústica (ICA2007)
SerieICA2007
NLA-07-006-IP
ResumenThis paper presents a numerical study of nonlinear drift motions experienced by small particles in a plane standing wave. A single half-wavelength resonator is considered for the study. Ignoring Brownian motion, components of the forces acting on a particle are considered along the acoustic field direction and perpendicular to it, taking into account the gravity. The Primary radiation force, due to nonlinear interactions between the incident and particle scattered waves governs the particle motion from any location toward the node of acoustic pressure, in the middle of the resonator. Other second-order nonlinear interactions due to the acoustic wave effect and the mutual radiation pressure are also included in this study. These mechanisms generate forces on the particles much weaker than the radiation force with a shorter range of applicability concerning to distances up to various orders of magnitude higher than the particle radii.
In this way, the particle motion near the node of pressure can be slightly affected by the secondary nonlinear mechanisms, producing certain deviations of their trajectories around their locations of equilibrium. Also the drift motion of smaller particles in polydisperse suspensions of differently sizes can be altered by the influence of other bigger particles close to them.
DescripciónPonencia presentada en el XIX Congreso Internacional de Acústica (ICA2007), Madrid, 2-7 Sep 2007.-- PACS: 43.55.Cs.
URIhttp://hdl.handle.net/10261/5308
Aparece en las colecciones: (IA) Comunicaciones congresos
Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
nla-07-006.pdf64,33 kBAdobe PDFVista previa
Visualizar/Abrir
Mostrar el registro completo
 


NOTA: Los ítems de Digital.CSIC están protegidos por copyright, con todos los derechos reservados, a menos que se indique lo contrario.