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Laboratory Studies of Suspended Frazil Ice Particles Open Access


Other title
frazil ice
rise velocity
aspect ratio
size distribution
river ice processes
Type of item
Degree grantor
University of Alberta
Author or creator
McFarlane, Vincent J
Supervisor and department
Loewen, Mark (Civil and Environmental Engineering)
Hicks, Faye (Civil and Environmental Engineering)
Examining committee member and department
Hicks, Faye (Civil and Environmental Engineering)
Myers, Paul (Earth and Atmospheric Science)
Loewen, Mark (Civil and Environmental Engineering)
Department of Civil and Environmental Engineering
Water Resources Engineering
Date accepted
Graduation date
Master of Science
Degree level
The physical and kinematic properties of frazil ice particles have proven difficult to measure with any accuracy in the past. As a result, little is known about the size distribution, thickness, aspect ratio, and rise velocity of these particles, making it impossible to develop accurate mathematical models of the formation, development, and transport of frazil ice. To address this lack of data, a digital image acquisition system was developed capable of capturing high-resolution, cross-polarised photographs of suspended frazil ice particles in a laboratory environment. An algorithm was written to process these images and calculate the diameter of individual particles. A lognormal distribution was found to offer a good fit to the particle diameters. This image acquisition and processing system was also applied to rising frazil ice particles and the effects of particle thickness, diameter, aspect ratio, and orientation on the rise velocity of frazil ice in quiescent water was studied.
Permission is hereby granted to the University of Alberta Libraries to reproduce single copies of this thesis and to lend or sell such copies for private, scholarly or scientific research purposes only. Where the thesis is converted to, or otherwise made available in digital form, the University of Alberta will advise potential users of the thesis of these terms. The author reserves all other publication and other rights in association with the copyright in the thesis and, except as herein before provided, neither the thesis nor any substantial portion thereof may be printed or otherwise reproduced in any material form whatsoever without the author's prior written permission.
Citation for previous publication
McFarlane, V., Loewen, M., Hicks, F., 2012. Laboratory Experiments to Determine Frazil Ice Properties, in: Proceedings of the Annual Conference and General Meeting of the CSCE - 2012. Edmonton, Alberta, 10 pages.

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