Author(s): A. Khosrojerdi; M. R. Kavianpour
Linked Author(s): Mohammad Reza Kavianpour
Keywords: Bottom outlets; Leaf gates; Force coefficient
Abstract: The determination of the effective hydrodynamic forces on a gate is an important task for the designer of bottom outlets. Hydraulic model studies of bottom outlet leaf gates were performed to check the hydrodynamic downpull coefficient Kb for different gate openings. To determine the effect of the lip angle of the gate on this coefficient, three angles of 30°, 45° and 60° were examined. The results were arranged to show the variation of force coefficient with the lip angle and the gate opening. Finally, the present information is compared with those of previous investigations. The results show that the relative head of water behind the gate is less important, but that the gate opening and the lip angle play a significant role. The present results can fill the gap of information of previous investigations.
Year: 2003