Carpet Flow Analysis

by Yonas Kinfu, Univ of British Columbia, Vancouver, BC, Canada,
Michael C. Quick, (M.ASCE), Univ of British Columbia, Vancouver, BC, Canada,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Under very high flow conditions, sediment may be transported either in a suspension or by carpet flow, as defined by Bagnold. This study examines the theoretical conditions for carpet flow to exist and is particularly concerned with the transfer of shear stress from the fluid to the carpet of moving grains. It will be shown that a set of specific conditions must exist which govern the concentration of grains as a function of depth and shear.

Subject Headings: Shear stress | Sediment transport | Fluid flow | Stress analysis | Shear flow | Grain (material) | Particle velocity

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