Controlling bubble diameter and bubble size distribution is important for a variety of applications and active fields of research. In this study the formation of bubbles from porous plates in a liquid cross-flow is examined experimentally. By injecting air through porous plates of various media grades (0.2 to 100) into liquid flows in rectangular channels of varying aspect ratio (1–10) and gas/liquid flow rates the impact of the various factors is presented. Image processing techniques were used to measure bubble diameters and capture their formation from the porous plates. Mean bubble diameters ranged from 0.06–1.21 mm. The present work expands upon the work of [1] and further identifies the relative importance of wall shear stress, air injector pore size and gas to liquid mass flow ratio on bubble size and size distribution.
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ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting
July 15–20, 2018
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-5155-5
PROCEEDINGS PAPER
Bubble Formation From Porous Plates in Liquid Cross-Flow Available to Purchase
Thomas Shepard,
Thomas Shepard
University of St. Thomas, St. Paul, MN
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Eric Ruud,
Eric Ruud
University of St. Thomas, St. Paul, MN
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Henry Kinane,
Henry Kinane
University of St. Thomas, St. Paul, MN
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Deify Law,
Deify Law
California State University, Fresno, Fresno, CA
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Kohl Ordahl
Kohl Ordahl
University of St. Thomas, St. Paul, MN
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Thomas Shepard
University of St. Thomas, St. Paul, MN
Eric Ruud
University of St. Thomas, St. Paul, MN
Henry Kinane
University of St. Thomas, St. Paul, MN
Deify Law
California State University, Fresno, Fresno, CA
Kohl Ordahl
University of St. Thomas, St. Paul, MN
Paper No:
FEDSM2018-83221, V001T15A004; 8 pages
Published Online:
October 24, 2018
Citation
Shepard, T, Ruud, E, Kinane, H, Law, D, & Ordahl, K. "Bubble Formation From Porous Plates in Liquid Cross-Flow." Proceedings of the ASME 2018 5th Joint US-European Fluids Engineering Division Summer Meeting. Volume 1: Flow Manipulation and Active Control; Bio-Inspired Fluid Mechanics; Boundary Layer and High-Speed Flows; Fluids Engineering Education; Transport Phenomena in Energy Conversion and Mixing; Turbulent Flows; Vortex Dynamics; DNS/LES and Hybrid RANS/LES Methods; Fluid Structure Interaction; Fluid Dynamics of Wind Energy; Bubble, Droplet, and Aerosol Dynamics. Montreal, Quebec, Canada. July 15–20, 2018. V001T15A004. ASME. https://doi.org/10.1115/FEDSM2018-83221
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