Page - 1376 - in Book of Full Papers - Symposium Hydro Engineering

6. SIGNIFICANT COMPONENT – EJECTOR GATE The purpose of the ejector gate is to regulate the dam level at times of floodwater and to lend the highest possible speed to the water emerging onto the ramp by means of a continuously graduated opening of the ejector gate relative to the available water flow. With a given outflow speed of theoretically v1=μ√2gha below the gate, the goal must be to achieve loss reduction via an appropriate shaping of the gate to create a jet effect. Fig. 15 Location if the ejector gate [3] The above section (Fig. 15) shows the location of the ejector gate, between ejector channel and ejector ramp. An ejector gate with innovative rounded bottom end in line of the gradient, resulting from our research project, is shown in the section below. Fig. 16 Detail – ejector gate with rounded bottom end [3] 1376