| Investigating acoustic-induced deformations in a foam using multiple light scattering. | |
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MedLine Citation:
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PMID: 20866811 Owner: NLM Status: In-Process |
Abstract/OtherAbstract:
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We have studied the effect of an external acoustic wave on bubble displacements inside an aqueous foam. The signature of the acoustic-induced bubble displacements is found using a multiple light scattering technique, and occurs as a modulation on the photon correlation curve. Measurements for various sound frequencies and amplitudes are compared to analytical predictions and numerical simulations. These comparisons finally allow us to elucidate the nontrivial acoustic displacement profile inside the foam; in particular, we find that the acoustic wave creates a localized shear in the vicinity of the solid walls holding the foam, as a consequence of inertial contributions. This study of how bubbles "dance" inside a foam as a response to sound turns out to provide new insights on foam acoustics and sound transmission into a foam, foam deformation at high frequencies, and analysis of light scattering data in samples undergoing nonhomogeneous deformations. |
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Authors:
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M Erpelding; R M Guillermic; B Dollet; A Saint-Jalmes; J Crassous |
Publication Detail:
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Type: Journal Article Date: 2010-08-27 |
Journal Detail:
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Title: Physical review. E, Statistical, nonlinear, and soft matter physics Volume: 82 ISSN: 1550-2376 ISO Abbreviation: Phys Rev E Stat Nonlin Soft Matter Phys Publication Date: 2010 Aug |
Date Detail:
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Created Date: 2010-09-27 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 101136452 Medline TA: Phys Rev E Stat Nonlin Soft Matter Phys Country: United States |
Other Details:
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Languages: eng Pagination: 021409 Citation Subset: - |
Affiliation:
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Institut de Physique de Rennes, UMR CNRS, Université de Rennes, France. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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