English   español  
Por favor, use este identificador para citar o enlazar a este item: http://hdl.handle.net/10261/66170
Compartir / Impacto:
Estadísticas
Add this article to your Mendeley library MendeleyBASE
Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Título

Numerical Study of the Hydrodynamic Interaction Between Aerosol Particles Due to the Acoustic Wake Effect

AutorGonzález Gómez, Icíar; Elvira Segura, Luis; Hoffmann, Thomas L.; Gallego Juárez, Juan Antonio
Fecha de publicación2001
EditorS. Hirzel Verlag
CitaciónActa Acustica united with Acustica 87 : 454-460 (2001)
ResumenThe problem of aggregation of two spherical particles subjected to an acoustic field is numerically examined in this paper for the Oseen regime. The study focuses on the hydrodynamic mechanism known as the acoustic wake effect (AWE), and its influence on the acoustic agglomeration processes. Two nearby spherical particles are considered, subjected to acoustic fields under Oseen flow conditions and characterized by Reynolds numbers smaller than unity. The main goal of this work is to spawn the range of applicability of a theoretical analysis carried out previously by the authors, which was not applicable in a strict sense at distances shorter than 3.5 times the particle diameter. At these short distances the acoustic wake effect becomes the most intense and that is why it is interesting. A system of differential equations describing the particle dynamics is numerically solved. Particle trajectories are simulated during the complete approach process up to collision without any spatial restrictions, as well as the particles’ convergence velocity. A bidimensional description of the acoustic wake effect is performed in this numerical simulation. It reveals strong attraction between two interacting particles with their center-line oriented at angles from 0 º to 45 º with respect to the wave propagation direction. The results of this study are compared to those of the previous theoretical analysis. A good agreement between the two studies is found that evidences the applicability of the numerical treatment of the problem.
Descripción7 páginas, 7 figuras
URIhttp://hdl.handle.net/10261/66170
ISSN1610-1928
E-ISSN1861-9959
Aparece en las colecciones: (IA) Artículos
Ficheros en este ítem:
No hay ficheros asociados a este ítem.
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.