عملكرد هيدروليكي دريچه هاي هيدروفلوم (لوله دريچه دار) ساخت ايران

Hydraulic performance of hydro flume (gated pipe) gates

In order to use gated pipes efficiently, it is required to know the hydraulic properties of the gated pipe and its gates. The hydraulic properties of gated pipeʹs gates were studied. The manufacturing quality and the discharge similarity of gates were evaluated by computing values of indices including Cv, q,ar and Range. Results indicate that the manufacturing quality of gates is acceptable and their hydraulic performanceʹs is similar. Therefore, an equation was developed to relate gate discharge to the hydraulic head behind the gate and the gate degree of opening. The gate discharge was computed under various conditions of pressure head and degree of opening with the equation derived and compared with measured values. The computed values of gate discharge were close enough to the actual values for practical purposes. A computer program was developed to simulate gate discharges along a gated pipe. The program calculates gate discharge and pressure behind the gates along a gated pipe line based on known values of pipe slope, length of pipe, gate degree or opening, gate spacing, pipe inlet pressure or discharge of last gate on the pipe line, distance from the pipe inlet to the first open gate, and numbers of open and closed gates at the beginning of the pipe.