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Determining Coefficient of Discharge to Compare Coefficients of Resistance for Different Coarse Aggregate Beds


Shambo M. T, Deepak T. J., Joyce Edwin Bategeleza, Abdulhakeem Nasir
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The paper is an investigation to determine the coefficient of discharge for different notches and weirs with coarse aggregate beds and then comparing Chezy’s, Darcy Weisbach’s and the Manning’s coefficients. Prior to that, the notches had to be designed and fabricated, then experiments were conducted. Six methods were used for this experiment. The open channel on the hydraulic bench is intended to depict an actual open channel flow scenario, but on a small scale, steady flow was used for these experiments. From this investigation, it was confirmed that discharge coefficient for all notches and weirs ranges between 0.57-0.9. The bed of a channel, in this case, coarse aggregates was found to have an effect on discharge coefficient, though it is said to be insignificant. Manning’s n and Darcy-Weisbach’s f were found to decrease with increase in discharge and velocity.

Shambo M. T, Deepak T. J., Joyce Edwin Bategeleza, Abdulhakeem Nasir

Open Channel Flow, Flow Resistance, Discharge Coefficient

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Publication Details

Published in : Volume 1 | Issue 4 | July-August - 2015
Date of Publication Print ISSN Online ISSN
2015-08-31 2395-1990 2394-4099
Page(s) Manuscript Number   Publisher
468-476 IJSRSET151490   Technoscience Academy

Cite This Article

Shambo M. T, Deepak T. J., Joyce Edwin Bategeleza, Abdulhakeem Nasir, "Determining Coefficient of Discharge to Compare Coefficients of Resistance for Different Coarse Aggregate Beds", International Journal of Scientific Research in Science, Engineering and Technology(IJSRSET), Print ISSN : 2395-1990, Online ISSN : 2394-4099, Volume 1, Issue 4, pp.468-476, July-August-2015.
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