eCite Digital Repository

An experimental investigation of the optical measurement of microbubbles in a confined radial jet

Citation

Trump, MC and De Graaf, KL and Pearce, BW and Brandner, PA, An experimental investigation of the optical measurement of microbubbles in a confined radial jet, Proceedings of the 7th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, 9-11 December 2015, Melbourne, Australia, pp. 29-34. ISBN 978-0-646-94892-8 (2015) [Refereed Conference Paper]


Preview
PDF
Restricted - Request a copy
2Mb
  

Copyright Statement

Copyright unknown

Official URL: http://aldc.eng.monash.edu/files/7ACLDFMC_Proceedi...

Abstract

An experimental shadowgraphy setup and procedure has been designed to investigate microbubble size distribution and production frequency of a mini-tube type microbubble generator as implemented in the Australian Maritime College Cavitation Research Laboratory. To overcome the depth-of-field limitations of traditional shadowgraphy setups, the present study uses a radial diffuser to reduce the depth of the test volume to 1 mm, allowing all bubbles to be imaged within the acceptable plane of focus. Shadowgraphy measurements are made of a microbubble plume, injected into a uniform, low-turbulence dilution flow to homogeneously disperse the microbubbles. Bubble shadows are created with stroboscopic lighting and recorded with a highresolution digital camera and close-range microscope. Results show that the dominant size interval for the microbubble generator used in the current study is 1015 μm, with a total production frequency of 1454 kHz.

Item Details

Item Type:Refereed Conference Paper
Keywords:micro-bubble size measurement, shadowgraphy, near field microscopy
Research Division:Engineering
Research Group:Maritime Engineering
Research Field:Ship and Platform Hydrodynamics
Objective Division:Manufacturing
Objective Group:Transport Equipment
Objective Field:Nautical Equipment (excl. Yachts)
Author:Trump, MC (Mr Matthew Trump)
Author:De Graaf, KL (Dr Katrina De Graaf)
Author:Pearce, BW (Dr Bryce Pearce)
Author:Brandner, PA (Associate Professor Paul Brandner)
ID Code:106498
Year Published:2015
Deposited By:NC Maritime Engineering and Hydrodynamics
Deposited On:2016-02-11
Last Modified:2016-08-01
Downloads:0

Repository Staff Only: item control page