Optimal subharmonic emission of stable bubble oscillations in a tube

Yuzhe Fan, Haisen Li, and Daniel Fuster
Phys. Rev. E 102, 013105 – Published 14 July 2020

Abstract

The subharmonic acoustic emission of a stable oscillating bubble inside a rigid tube is investigated by direct numerical simulation. The mechanisms of bubble-tube interaction on the acoustic wave emitted by the bubble are clarified. When the bubble is small compared to the tube diameter, a critical threshold for the pressure amplitude appears beyond the point which nonspherical effects become important and bubble breaks. For a finite tube diameter, the scattered wave by the bubble is shown to generate a plane wave where the intensity of the subharmonic component becomes maximum for an optimal distance between the bubble and the tube wall. This effect seems to be directly related to the appearance of local resonance phenomena and a bubble resonance shift where liquid's compressibility plays a major role.

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  • Received 27 March 2020
  • Accepted 29 June 2020

DOI:https://doi.org/10.1103/PhysRevE.102.013105

©2020 American Physical Society

Physics Subject Headings (PhySH)

Fluid DynamicsNonlinear Dynamics

Authors & Affiliations

Yuzhe Fan1,2,3,4, Haisen Li1,2,3, and Daniel Fuster4,*

  • 1College of Underwater Acoustic Engineering, Harbin Engineering University, Harbin 150001, China
  • 2Key Laboratory of Marine Information Acquisition and Security (Harbin Engineering University), Ministry of Industry and Information Technology, Harbin 150001, China
  • 3Acoustic Science and Technology Laboratory, Harbin Engineering University, Harbin 150001, China
  • 4Sorbonne Université, UPMC Univ Paris 06, CNRS, UMR 7190, Institut Jean Le Rond d'Alembert, F-75005 Paris, France

  • *fuster@dalembert.upmc.fr

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Issue

Vol. 102, Iss. 1 — July 2020

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