Algorithm of Dynamic Operation Process of Hydraulic Automatically Operated Canals with Constant-Downstream Level Gates  

作　　者：ZHANG Li-wei FENG Xiao-bo WANG Chang-de 

机构地区：[1]Department of Water Conservancy Engineering and Hydropower Engineering, Wuhan University, Wuhan 430072, Hubei,China

出　　处：《Wuhan University Journal of Natural Sciences》2005年第6期1074-1080,共7页武汉大学学报（自然科学英文版）

基　　金：Supported by the 863 Programof China (2001AA242111)

摘　　要：On the basis of analysis the governing process of downstream water level gates AVIO and AVIS, a mathematical model for simulation of dynamic operation process of hydraulically automated irrigation canals instalIed with AVIO and AVIS gates is presented, the main point of this rnathematical 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 deeoupling this interaction of gate movement with the change of canal flow. In this process, it is necessary to give the gateg 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 has satisfactory accuracy.On the basis of analysis the governing process of downstream water level gates AVIO and AVIS, a mathematical model for simulation of dynamic operation process of hydraulically automated irrigation canals instalIed with AVIO and AVIS gates is presented, the main point of this rnathematical 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 deeoupling this interaction of gate movement with the change of canal flow. In this process, it is necessary to give the gateg 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 has satisfactory accuracy.

关 键 词：algorithm  hydraulically automatic gate AVIO gate AVIS gate downstream level control system unsteady flow dynamic process 

分 类 号：TV3[水利工程—水工结构工程]