Acoustics of cubic bubbles: six coupled oscillators
| Autor: | Harazi, Maxime, Rupin, Matthieu, Stephan, Olivier, Bossy, Emmanuel, Marmottant, Philippe |
|---|---|
| Přispěvatelé: | Laboratoire Interdisciplinaire de Physique [Saint Martin d’Hères] (LIPhy), Centre National de la Recherche Scientifique (CNRS)-Université Grenoble Alpes [2016-2019] (UGA [2016-2019]), European Project: 614655,EC:FP7:ERC,ERC-2013-CoG,BUBBLEBOOST(2014) |
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
[PHYS.PHYS.PHYS-FLU-DYN]Physics [physics]/Physics [physics]/Fluid Dynamics [physics.flu-dyn]
3D printing coupled oscillators impression 3D [PHYS.MECA.ACOU]Physics [physics]/Mechanics [physics]/Acoustics [physics.class-ph] bubbles oscillateurs couplés metamaterials acoustique metamatériaux [PHYS.MECA.MEFL]Physics [physics]/Mechanics [physics]/Fluid mechanics [physics.class-ph] acoustics [PHYS.COND.CM-SCM]Physics [physics]/Condensed Matter [cond-mat]/Soft Condensed Matter [cond-mat.soft] bulles |
| Zdroj: | Physical Review Letters Physical Review Letters, American Physical Society, 2019, 123 (25), ⟨10.1103/PhysRevLett.123.254501⟩ |
| ISSN: | 0031-9007 1079-7114 |
| DOI: | 10.1103/PhysRevLett.123.254501⟩ |
| Popis: | 5 pages with 4 figures, supplementary material with two figures. To appear in Physical Review Letters, with Editors' suggestion; International audience; In this manuscript we introduce cubic bubbles that are pinned to 3D printed millimetric frames immersed in water. Cubic bubbles are more stable over time and space than standard spherical bubbles, while still allowing large oscillations of their faces. We found that each face can be described as a harmonic oscillator coupled to the other ones. These resonators are coupled by the gas inside the cube but also by acoustic interactions in the liquid. We provide an analytical model and 3D numerical simulations predicting the resonance with a very good agreement. Acoustically, cubic bubbles prove to be good monopole sub-wavelength emitters, with non-emissive secondary surfaces modes. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|