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Bed Resistance Investigation for Manning's and Chezy's Coefficients


Bashir Muhtar, Manal M. A. Albayati
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Weirs, notches flumes and gates have been used for ages to determine discharges in open channels. In this study, laboratory experiments were conducted to investigate the coefficient of discharge for different beds and then comparing Chezy's and Manning’s coefficients. Using two different slopes, five different discharges and three kinds of roughness. Based on the investigation, it was discovered that discharge coefficient ranges between 0.4 to 0.9. Coarse aggregates were found to have an effect on discharge coefficient and manning was found to decrease with increase in discharge and velocity. Velocity increase with the flow under the unsubmerged condition for the corresponding roughness coefficient decreases with the increase velocity. Vegetative roughness coefficient tends to remain constant and rises as the submergence starts to occur.

Bashir Muhtar, Manal M. A. Albayati

Velocity, Discharge Coefficient, Flow Resistance, Open Channel Flow

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Publication Details

Published in : Volume 2 | Issue 6 | November-December - 2016
Date of Publication Print ISSN Online ISSN
2016-12-31 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
263-274 IJSRSET162668   Technoscience Academy

Cite This Article

Bashir Muhtar, Manal M. A. Albayati, "Bed Resistance Investigation for Manning's and Chezy's Coefficients", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 2, Issue 6, pp.263-274, November-December-2016.
URL : http://ijsrset.com/IJSRSET162668.php