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dc.contributor.author
Rosselló, Juan Manuel
dc.contributor.author
Dellavale Clara, Hector Damian
dc.contributor.author
Bonetto, Fabian Jose
dc.date.available
2016-12-06T21:46:27Z
dc.date.issued
2013-09
dc.identifier.citation
Rosselló, Juan Manuel; Dellavale Clara, Hector Damian; Bonetto, Fabian Jose; Energy concentration and positional stability of sonoluminescent bubbles in sulfuric acid for different static pressures; American Physical Society; Physical Review E: Statistical Physics, Plasmas, Fluids And Related Interdisciplinary Topics; 88; 3; 9-2013; 1-9
dc.identifier.issn
1063-651X
dc.identifier.uri
http://hdl.handle.net/11336/8953
dc.description.abstract
In this study we report several experimental and numerical results on the influence of static pressure (P0) over the main parameters in single bubble sonoluminescence (SBSL), using a sulfuric acid aqueous solution (SA) with low concentrations of argon gas dissolved. Bifrequency driving was used in the experiments to enhance spatial stability of the bubbles. The experimental results were compared with simulations provided by a numerical code that models the radial dynamics of the bubbles. The results showed that an increase on the static pressure of the system shifts the Bjerknes instability threshold, allowing the bubble to access higher acoustic pressures (PAc). Furthermore, a decrease in the measured ambient radius R0 and the calculated relative gas concentration c∞/c0 were observed. A notorious increment in the bubble collapse violence and energy focusing for P0 above 1 bar was achieved. These were mainly indicated by the growth of the bubble expansion ratio (Rmax/R0), the bubble mechanical energy density, and the maximum bubble wall velocity dR/dt. In agreement with the previous statement, the maximum temperature during the bubble collapse predicted by the model is augmented as well. The use of different harmonics in the ultrasound pressure field regarding energy focusing is also discussed. Finally, we analyzed the stability regions of the R0-PAc parameter space via numerical predictions for P0 above the measured, identifying the shape instabilities as the main limiting agent to obtain further energy concentration in SA systems at high static pressures.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
American Physical Society
dc.rights
info:eu-repo/semantics/openAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
Sonoluminescence
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Energy Concentration
dc.subject
Bjerknes Force
dc.subject
Sulfuric Acid
dc.subject.classification
Física de los Fluidos y Plasma
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Ciencias Físicas
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CIENCIAS NATURALES Y EXACTAS
dc.title
Energy concentration and positional stability of sonoluminescent bubbles in sulfuric acid for different static pressures
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2016-12-06T16:32:31Z
dc.identifier.eissn
1095-3787
dc.journal.volume
88
dc.journal.number
3
dc.journal.pagination
1-9
dc.journal.pais
Estados Unidos
dc.description.fil
Fil: Rosselló, Juan Manuel. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
dc.description.fil
Fil: Dellavale Clara, Hector Damian. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Patagonia Norte; Argentina
dc.description.fil
Fil: Bonetto, Fabian Jose. Comisión Nacional de Energía Atómica. Gerencia del Area de Energía Nuclear. Instituto Balseiro; Argentina
dc.journal.title
Physical Review E: Statistical Physics, Plasmas, Fluids And Related Interdisciplinary Topics
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/http://journals.aps.org/pre/abstract/10.1103/PhysRevE.88.033026
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1103/PhysRevE.88.033026
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