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Generation and dispersion of monodisperse microbubbles


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Kueh, JS, Russell, PS ORCID: 0000-0001-5320-7222, Pearce, BW ORCID: 0000-0003-2189-5598 and Brandner, PA ORCID: 0000-0002-6721-878X 2018 , 'Generation and dispersion of monodisperse microbubbles', in TCW Lau and RM Kelso (eds.), Proceedings of the 21st Australasian Fluid Mechanics Conference 2018 , Australasian Fluid Mechanics Society, Adelaide, Australia, pp. 1-4 .

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Optical measurements of monodisperse microbubblesdispersed by a cross flow in a quiescent environment arepresented. The dispersion is controlled by injecting the bubblytrain exiting a microfluidic T-junction into a 1 mm diametercross flow. Near range microscopy is used to obtain an effectivefield of view for dual-shot shadowgraphy measurements. Theair and water pressures of the microfluidic T-junction, alongwith the shear flow velocity, are varied to determine the effectthese parameters have on the microbubble size, spacing,production frequency and velocity. Suitable operatingparameters are established based on the microbubble size andconsistency of the measurements for application to thedevelopment and calibration of optical measurementtechniques.

Item Type: Conference Publication
Authors/Creators:Kueh, JS and Russell, PS and Pearce, BW and Brandner, PA
Keywords: microfluidics, shadography, T-junction, optical measurements
Journal or Publication Title: Proceedings of the 21st Australasian Fluid Mechanics Conference 2018
Publisher: Australasian Fluid Mechanics Society
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