Some new experimental insights into the acoustics of bubbly liquids

Conference item

A complete understanding of sea-surface scattering, shallow water volume scattering and bottom interaction requires a robust and accurate model for frequency-dependent sound transmission in bubbly media. Because of the high attenuation encountered at and near the range of resonance frequencies associated with a given bubble size distribution, experimental measurements in this regime are difficult, and for many specific cases, have not been obtained. To address this deficiency, experiments have been conducted using an impedance tube technique and a 1-D standing wave tube to explore the acoustics of high void-fraction bubble distributions. The result is an experimental approach that offers unprecedented precision and dynamic range, and allows one to probe the elusive "bubble resonance region." Measurements of phase speed and attenuation are obtained over a range of frequencies and compared to existing theory.

Authors: Roy, RA; Wilson, PS; Carey, WM

• Publication status: Published
• Peer review status: Peer reviewed
• Publisher: International Commission for Acoustics
• Host title: 17th International Congress on Acoustics
• Journal: 17th International Congress on Acoustics
• Publication date: 2001-09-03
• Acceptance date: 2001-09-03
• ISBN: 8888387005
• Keywords: SBTMR