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Sediment transport rate estimation in partially ice-covered channels

Author(s): Mina Rouzegar; Shawn Clark

Linked Author(s): Shawn Clark

Keywords: River Ice; experimental study

Abstract: It is essential to know the effects of an ice cover on sediment transport in cold climates, where sub-freezing temperatures affect water bodies for a significant part of the year. Many studies have investigated either open channel flow or completely ice-covered flow; however, studies on partially ice-covered channels are limited. In this study, laboratory experiments were conducted in a rectangular flume to examine the impact of border ice presence on sediment transport rate. The effect of changing ice coverage percentage on sediment transport was also investigated, and the results were compared to fully ice-covered and open channel flow. Experimental results were also compared to conventional relationships and equations for free surface and fully ice-covered flow. Finally, the simple and convenient formula relating the bedload capacity to the flow strength in fully ice-covered and open channel flow was updated for partially ice-covered rivers.


Year: 2022

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