Title: Experimental study on vertical velocity profile of river bed surface with discontinuous wide-grading sediment
Abstract: Discontinuous wide-grading sediment widely exists in natural rivers as a specific type of non-uniform sediment.It has different flow characteristics while comparing with traditional non-uniform sediment.The vertical velocity structures of the discontinuous wide-grading sediment bed are studied in a series of flume experiments.The experimental results show that S-type vertical velocity exists near the bed surface,and the S-shaped position is related to flow intensity and bed form.The vertical velocity formula expressed by section and based on the S-type is put forward and the S position of a vertical velocity profile is derived.The study provides a basis for the research of the flow structure of the discontinuous wide-grading sediment.
Publication Year: 2012
Publication Date: 2012-01-01
Language: en
Type: article
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