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Stream Power And Design Of Stable Sand Bed Channels

Rao, Achanta Ramakrishna and Sreenivasulu, Gopu (2005) Stream Power And Design Of Stable Sand Bed Channels. In: National Conference on Hydraulics & Water Resources HYDRO - 2005, 8-9 December, Tumkur,Karnataka, pp. 1-13.

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A simple and straightforward design procedure of plane and stable alluvial channel beds (at incipient condition) in noncohesive uniform material, under fairly uniform flow conditions is developed based on the experimental data. The design can be accomplished by making use of design curves and tables such that any two of the four design variables viz., water discharge, flow depth, channel slope and bed material size are sufficient to evaluate the remaining two variables. Thus the two equations, which are used to determine the remaining two variables, are: (1) An equation governing the Shields’ curve and (2) A relationship for stream power in terms of particle shear Reynolds number. These two equations are established by conducting experiments in the laboratory. With the help of such relations, the use of Manning’s equation (thus the ambiguity of estimating Manning’s ‘n’) is avoided while computing the average velocity in the channel. Design procedures to solve six possible problems are presented.

Item Type: Conference Paper
Additional Information: Copyright of this article belongs to The Indian Society for Hydraulics
Department/Centre: Division of Mechanical Sciences > Civil Engineering
Date Deposited: 27 Mar 2006
Last Modified: 27 Aug 2008 11:51
URI: http://eprints.iisc.ac.in/id/eprint/6135

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