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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/4993
Title: Direct solution for discharge in circular free overfall
Authors: Ahmad, Zulfequar
Azamathulla H.
Published in: Journal of Hydrology
Abstract: Free overfall at the end of a circular channel is simulated as sharp-crested weir with zero height to get end-depth-discharge relationship. A closed-form equation for discharge in terms of end depth for subcritical flows is proposed and verified with the experimental data. Computed discharges show excellent matching with the observed data. Direct solution for discharge for known end depth, channel bed slope, and Manning's coefficient is provided in the graphical form for supercritical flow. Verification of this solution with the available experimental data revealed that computed discharges are within ±12% of the observed discharges. © 2012 Elsevier B.V..
Citation: Journal of Hydrology(2012), 446-447(): 116-120
URI: https://doi.org/10.1016/j.jhydrol.2012.04.025
http://repository.iitr.ac.in/handle/123456789/4993
Issue Date: 2012
Keywords: Circular channel
Flow measurement
Open channel flow
Pressure distribution
Steady flow
Weirs
ISSN: 221694
Author Scopus IDs: 7103092790
57204286018
Author Affiliations: Ahmad, Z., Department of Civil Engineering, Indian Institute of Technology Roorkee, Roorkee 247 667, Uttaranchal, India
Azamathulla, H., River Engineering and Urban Drainage Research Centre (REDAC), Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia
Corresponding Author: Azamathulla, H.; River Engineering and Urban Drainage Research Centre (REDAC), Universiti Sains Malaysia, Engineering Campus, Seri Ampangan, 14300 Nibong Tebal, Pulau Pinang, Malaysia; email: redacazamath@eng.usm.my
Appears in Collections:Journal Publications [CE]

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