Planar laser fluorescence imaging of bubble detachment

Marcus Kristian Fedrizzi, Julio Soria

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When a gas bubble, slowly forming in a liquid, detaches from an orifice a small internal jet forms inside. The internal jet is difficult to image using a common shadowgraphy technique due to the curved bubble surface. This study investigates the application of planar laser induced fluorescence (PLIF) to image the internal jet of an air bubble in water, both as a standalone technique and in combination with shadowgraphy. PLIF is implemented using a high speed laser, high speed camera and high magnification to obtain time-resolved images visualising the internal jet development. The results show the internal jet growing rapidly after detachment and breaking up into numerous small droplets followed by the development of surface waves.
Original languageEnglish
Title of host publicationProceedings of the 19th Australasian Fluid Mechanics Conference (AFMC)
EditorsHarun Chowdhury, Firoz Alam
Place of PublicationMelbourne Vic Australia
PublisherRMIT University
Pages1 - 4
Number of pages4
ISBN (Print)9780646596952
Publication statusPublished - 2014
EventAustralasian Fluid Mechanics Conference 2014 - Melbourne, Australia
Duration: 8 Dec 201411 Dec 2014
Conference number: 19th


ConferenceAustralasian Fluid Mechanics Conference 2014
Abbreviated titleAFMC 2014
Internet address

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