End-depth in inverted semicircular channels: experimental and theoretical studies

Dey, Subhasish and Kumar, D Nagesh and Singh, D Ram (2004) End-depth in inverted semicircular channels: experimental and theoretical studies. In: Nordic Hydrology, 35 (1). pp. 73-79.

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Abstract

The flow upstream of a free overfall from smooth inverted semicircular channels is theoretically analysed to compute the end-depth ratio (EDR), applying an energy equation based on the Boussinesq assumption. This approach eliminates the need for an experimentally determined pressure coefficient. Experiments were conducted with horizontal channel conditions. The EDR related to the critical depth, which occurs upstream from the end section, is found to be around 0.695 for a critical depth-diameter ratio up to 0.40. A simple method is presented to estimate the discharge from a known end-depth. The theoretical model corresponds closely with the experimental data.

Item Type:	Journal Article
Publication:	Nordic Hydrology
Publisher:	IWA Publishing.
Additional Information:	Copyright of this article belongs to IWA Publishing.
Keywords:	End-depth;flow measurement;free overfall;free surface flow;open channel flow;steady flow
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	18 Dec 2008 12:38
Last Modified:	19 Sep 2010 04:54
URI:	http://eprints.iisc.ac.in/id/eprint/16913

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