Analysis of Hydraulic Characteristics of Cutthroat Flume-eng

Hana A. Hayawi, Amal A. Yahya, Dr. Ghania A. Hayawi
2013 Al-Rafidain Engineering Journal  
The aim of this research is to calculate experimentally the coefficient of discharge for cutthroat flume. Nine models were contracted with different angles (α=30°, 45°, 60°), for each angle, Three ratios of width of cutthroat to width of channel B c /B were used (B c /B%=20, 33.3, 50); the slopes of the channel were changed five times (S=0.0, 0.001, 0.002, 0.003, 0.004) for each ratio. The results show that the coefficient of discharge C d increases as the slope S increases, and as the ratio B
more » ... and as the ratio B c /B, is the ratio of head of water through cutthroat to width of cutthroat h c /B c , critical depth through cutthroat to width of cutthroat y c /B c increases, and for a constant ratio B c / / B, C d increases as α increase. An empirical model was predicted to calculate the C d in terms of the perimeters ( S, h c /B c , y c /B c , B c /B , , and α), finally the water surface profiles were drawn and there were in a continuous trend.
doi:10.33899/rengj.2013.77387 fatcat:hto4wb2owzejpcf3cepe4owdke