Fully Coupled Model of Ice-Jam Dynamics
Publication: Journal of Cold Regions Engineering
Volume 14, Issue 1
Abstract
This paper presents a numerical model that simulates the dynamic failure and re-formation of an ice jam. The model comprises a simultaneous solution of the 1D, unsteady flow equations (conservation of mass and momentum) for water flow and ice motion. Its use is demonstrated in the routing of flow hydrographs through a channel containing an initial jam or accumulation of broken ice. The model shows the extent to which changes in flow discharge may affect profiles of jam thickness and flow depth for these situations. It also shows how ice momentum may affect the jam-thickness profile. Dimensionless parameters, characterizing initial jam stability and the shape of the hydrograph, are identified to indicate conditions when changes in flow discharge and ice momentum should be taken into account when estimating jam thickness.
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Information & Authors
Information
Published In
Journal of Cold Regions Engineering
Volume 14 • Issue 1 • March 2000
Pages: 24 - 41
History
Received: Apr 21, 1997
Published online: Mar 1, 2000
Published in print: Mar 2000
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