THE EFFECT OF CHARACTERISTICS OF FLOW ON DISCHARGE COEFFICIENT FOR OBLIQUE WEIR
الباحث الأول:
Jumana hadi sahib
الباحثين الآخرين:
, Ghssan Naeem, Yousif Hani and Ahmed Kaduhim
المجلة:
International Journal of Civil Engineering & Technology
(IJCIET),
تاريخ النشر:
None
مختصر البحث:
Any flow taking place over a hydraulic structure under the free surface condition is analyzed with the weirs formula because is good advice and easy measured. Experimentally using a laboratory flume for compound crested weir models were investigated…
Any flow taking place over a hydraulic structure under the free surface condition is analyzed with the weirs formula because is good advice and easy measured. Experimentally using a laboratory flume for compound crested weir models were investigated. The crests weir for models divided two parts; the first part is a quarter round shape in upstream. The second part is sharp crested in downstream. Series of experiments were used for weir crest radius of R = 1.5 cm, and angles of weir inclination (α = 10, 15°, 25 and 90°) to the direction of flow with a different weir height (P = 15 cm, 20cm, and 25cm) to measure discharges and water heads over the weir models. This kind of weir can used to increase the efficiency by increased the length weir and discharge for same head and width of channel. By the eddy and hydraulic jump in downstream is aerating automatically. Finally, this paper used three formula for discharge coefficient related for each height weir included oblique angles tested and the equations gave a good correction.
