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Mathematical model of dynamic process of hydraulic automatically operated canals with Constant ,|downstream level controller

Wang Changde(Wuhan University of Hydraulic and Electric Engineering)Zhang Liwei(Shenzhen Water Conservancy Bureau))  
n the basis of retrieving the existing control methods and algorithm of automatic irrigation systems,a mathematical model for simulation of dynamic operation process of hydraulically automated irrigation canals installed with AVIO and AVIS gates is presented the main point of this mathematical model is firstly applying a set of unsteady flow equations(St.Venant equations here)and treating the condition of gate movement as its dynamic boundary,and then decoupling this interaction of gate movement with the change of canal flow.In this process,it is necessary to give the gates ,` open ,|loop transfer function whose input is water level deviation and output is gate discharge.The result of this simulation for a practical reach has shown it ,`s satisfactory accuracy.
【CateGory Index】: U61
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