Macroscopic acousto-mechanical analogy of a microbubble
[EN] Microbubbles, either in the form of free gas bubbles surrounded by a fluid or encapsulated bubbles used currently as contrast agents for medical echography, exhibit complex dynamics under specific acoustic excitations. Nonetheless, considering their micron size and the complexity of their inter...
| Autores: | , , , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2015 |
| País: | España |
| Institución: | Universitat Politècnica de València (UPV) |
| Repositorio: | RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| Idioma: | inglés |
| OAI Identifier: | oai:riunet.upv.es:10251/93298 |
| Acceso en línea: | https://riunet.upv.es/handle/10251/93298 |
| Access Level: | acceso abierto |
| Palabra clave: | Macroscopic Microbubble Bubbles Encapsulated bubbles FISICA APLICADA |
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oai:riunet.upv.es:10251/93298 |
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España |
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Macroscopic acousto-mechanical analogy of a microbubble Chaline, Jennifer Mehrem, Ahmed Bouakaz, Ayache Dos Santos, Serge Jimenez, Noe|||0000-0002-6539-670X Sánchez Morcillo, Víctor José|||0000-0003-4766-1263 Macroscopic Microbubble Bubbles Encapsulated bubbles FISICA APLICADA [EN] Microbubbles, either in the form of free gas bubbles surrounded by a fluid or encapsulated bubbles used currently as contrast agents for medical echography, exhibit complex dynamics under specific acoustic excitations. Nonetheless, considering their micron size and the complexity of their interaction phenomenon with ultrasoundwaves, expensive and complex experiments and/or simulations are required for their analysis. The behavior of a microbubble along its equator can be linked to a system of coupled oscillators. In this study, the oscillatory behavior of a microbubble has been investigated through an acousto-mechanic alanalogy based on a ring-shaped chain of coupled pendula. Observation of parametric vibration modes of the pendula ring excited at frequencies between 1 and 5 Hz is presented. Simulations have been carried out and show mode mixing phenomena. The relevance of the analogy between a microbubble and the macroscopic acousto-mechanical setup is discussed and suggested as an alternative way to investigate the complexity of microbubble dynamics. Thanks to Jean-Marc Gregoire and Jean-Yves Tartu for their fruitful help in the design of the experimental setup. J.C. was the recipient of a Ph.D. fellowship from the Region Centre Val de Loire (France). Financial support from the University Francois-Rabelais doctoral school of Tours was granted to finance a research stay on this topic at the Universidad Politecnica de Valencia (Spain). A.M. is recipient of a research fellowship from Generalitat Valenciana (Santiago Grisolia program). Acoustical Society of America https://riunet.upv.es/handle/10251/93298 |
| title |
Macroscopic acousto-mechanical analogy of a microbubble |
| spellingShingle |
Macroscopic acousto-mechanical analogy of a microbubble Chaline, Jennifer Macroscopic Microbubble Bubbles Encapsulated bubbles FISICA APLICADA |
| title_short |
Macroscopic acousto-mechanical analogy of a microbubble |
| title_full |
Macroscopic acousto-mechanical analogy of a microbubble |
| title_fullStr |
Macroscopic acousto-mechanical analogy of a microbubble |
| title_full_unstemmed |
Macroscopic acousto-mechanical analogy of a microbubble |
| title_sort |
Macroscopic acousto-mechanical analogy of a microbubble |
| author |
Chaline, Jennifer |
| author_facet |
Chaline, Jennifer Mehrem, Ahmed Bouakaz, Ayache Dos Santos, Serge Jimenez, Noe|||0000-0002-6539-670X Sánchez Morcillo, Víctor José|||0000-0003-4766-1263 |
| author_role |
author |
| author2 |
Mehrem, Ahmed Bouakaz, Ayache Dos Santos, Serge Jimenez, Noe|||0000-0002-6539-670X Sánchez Morcillo, Víctor José|||0000-0003-4766-1263 |
| author2_role |
author author author author author |
| topic |
Macroscopic Microbubble Bubbles Encapsulated bubbles FISICA APLICADA |
| topic_facet |
Macroscopic Microbubble Bubbles Encapsulated bubbles FISICA APLICADA |
| description |
[EN] Microbubbles, either in the form of free gas bubbles surrounded by a fluid or encapsulated bubbles used currently as contrast agents for medical echography, exhibit complex dynamics under specific acoustic excitations. Nonetheless, considering their micron size and the complexity of their interaction phenomenon with ultrasoundwaves, expensive and complex experiments and/or simulations are required for their analysis. The behavior of a microbubble along its equator can be linked to a system of coupled oscillators. In this study, the oscillatory behavior of a microbubble has been investigated through an acousto-mechanic alanalogy based on a ring-shaped chain of coupled pendula. Observation of parametric vibration modes of the pendula ring excited at frequencies between 1 and 5 Hz is presented. Simulations have been carried out and show mode mixing phenomena. The relevance of the analogy between a microbubble and the macroscopic acousto-mechanical setup is discussed and suggested as an alternative way to investigate the complexity of microbubble dynamics. |
| publishDate |
2015 |
| format |
article |
| url |
https://riunet.upv.es/handle/10251/93298 |
| language |
eng |
| eu_rights_str_mv |
openAccess |
| publisher |
Acoustical Society of America |
| institution |
Universitat Politècnica de València (UPV) |
| collection |
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| reponame_str |
RiuNet. Repositorio Institucional de la Universitat Politécnica de Valéncia |
| instname_str |
Universitat Politècnica de València (UPV) |
| _version_ |
1878441144165072896 |
| publishDateSort |
2015 |
| author_browse |
Bouakaz, Ayache Chaline, Jennifer Dos Santos, Serge Jimenez, Noe|||0000-0002-6539-670X Mehrem, Ahmed Sánchez Morcillo, Víctor José|||0000-0003-4766-1263 |
| publisherStr |
Acoustical Society of America |
| score |
6.924472 |