Chaotic gas bubble oscillations in a viscoelastic fluid

Jiménez Fernández, Javier (2008). Chaotic gas bubble oscillations in a viscoelastic fluid. "Comptes Rendus Mecanique", v. 336 (n. 5); pp. 411-416. ISSN 1631-0721. https://doi.org/10.1016/j.crme.2008.02.007.

Description

Title: Chaotic gas bubble oscillations in a viscoelastic fluid
Author/s:
  • Jiménez Fernández, Javier
Item Type: Article
Título de Revista/Publicación: Comptes Rendus Mecanique
Date: May 2008
ISSN: 1631-0721
Volume: 336
Subjects:
Freetext Keywords: Acoustics; bubble dynamics; ultrasound; viscoelastic fluids; acoustique ; dynamique des bulles ; Uultrasons ; fluides viscoelastiques.
Faculty: E.T.S.I. Industriales (UPM)
Department: Ingeniería Energética y Fluidomecánica [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Regular and chaotic radial oscillations of an acoustically driven gas bubble in a viscoelastic fluid have been theoretically analyzed. For parameter values usually found in diagnostic ultrasound period-doubling routes to chaos have been identified. Thresholds values of the external pressure amplitude for a first bifurcation in terms of the elasticity and the shear viscosity of the host fluid have also been evaluated. Les oscillations radiales, régulières ou chaotiques, d’une bulle de gaz au sein d’un fluide viscoélastique et soumise à l’action d’un champ acoustique sont analysées théoriquement. Pour des valeurs des paramètres qui sont normalement rencontrées dans le diagnostic médical, des chemins vers le chaos par doublement de la période ont été identifiés. Les valeurs limites pour la première bifurcation en fonction de l’élasticité et de la viscosité du fluide, ont été aussi déterminées.

More information

Item ID: 2379
DC Identifier: http://oa.upm.es/2379/
OAI Identifier: oai:oa.upm.es:2379
DOI: 10.1016/j.crme.2008.02.007
Official URL: http://www.elsevier.com/wps/find/journaldescription.cws_home/622958/description#description
Deposited by: Memoria Investigacion
Deposited on: 29 Apr 2010 11:42
Last Modified: 21 Feb 2017 16:58
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