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Analysis of gradually and spatially varied flow in sand-bed channels

Sreenivasulu, Gopu and Rao, Achanta Ramakrishna and Kumar, Bimlesh and Tripathi, Saurabh (2010) Analysis of gradually and spatially varied flow in sand-bed channels. In: Journal of Hydraulic Research, 48 (2). pp. 274-279.

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Abstract

Seepage through a sand bed affects the channel hydrodynamics, which in turn alters channel stability. Thus, the effect of seepage on its hydrodynamic parameters needs to be ascertained. The present work analyses spatially varied flow of a sand-bed channel subjected to seepage in the downward direction through a sand bed. Numerically calculated flow profiles affected by seepage have been verified using experimental observations. The present work also analyses the friction slope, velocity and bed shear stress variations along the channel for both seepage and no-seepage conditions. It was found that the downward seepage-induced channel flow has larger friction slope and bed shear stress than that of no-seepage.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to International Association of Hydraulic Engineering and Research.
Keywords: Incipient motion;resistance equation;seepage;shear stress; spatially varied flow
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Division of Mechanical Sciences > Centre for Atmospheric & Oceanic Sciences
Date Deposited: 03 Jun 2010 05:55
Last Modified: 03 Jun 2010 05:55
URI: http://eprints.iisc.ernet.in/id/eprint/28162

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