Determining Coefficient of Discharge to Compare Coefficients of Resistance for Different Coarse Aggregate Beds
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 conduc...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
International Journal of Scientific Research in Science, Engineering and Technology
2015
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| Subjects: | |
| Online Access: | http://eprints.intimal.edu.my/637/1/Determining%20Coefficient%20of%20Discharge%20to%20Compare%20Coefficients%20of.pdf http://eprints.intimal.edu.my/637/ http://ijsrset.com/archive.php?v=4&i=5&pyear=2015 |
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| Summary: | 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. |
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