Pre-detachment acoustic emission of a bubble emerging from an orifice

Marcus Fedrizzi, Julio Soria

Research output: Chapter in Book/Report/Conference proceedingChapter (Book)Researchpeer-review


The acoustic pulse emitted from a bubble detaching from a submerged orifice begins with a rarefaction before the bubble has detached. By implementing an experimental technique where the acoustic pulse measured from a hydrophone was synchronised with the image acquisition from a high-speed camera the behaviour of the bubble surface can be observed during the initial stage of the acoustic emission. The bubble is found to detach slightly before the local minimum pressure measured in the acoustic signal.

Original languageEnglish
Title of host publicationFluid-Structure-Sound Interactions and Control
Subtitle of host publicationProceedings of the 3rd Symposium on Fluid-Structure-Sound Interactions and Control
EditorsYu Zhou, Yang Liu, A.D. Lucey, Lixi Huang
Place of PublicationHeidelberg, Berlin
Number of pages5
ISBN (Electronic)9783662488683
ISBN (Print)9783662488669
Publication statusPublished - 2016

Publication series

NameLecture Notes in Mechanical Engineering
ISSN (Print)2195-4356
ISSN (Electronic)2195-4364

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