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Developing a modeling tool for flow profiling in irrigation distribution networks

International Journal of Agricultural and Biological Engineering 2009年第3期2卷 17-26页

作者： Yanbo Huang Guy Fipps Application and Production Technology Research Unit US Department of AgricultureAgricultural Research Service(USDA-ARS)StonevilleMS 38776USA Department of Biological and Agricultural Engineering Texas A&M UniversityCollege StationTX 77843USA

Efforts are underway to rehabilitate the irrigation districts,such as in the Rio Grande Basin in *** distribution network models are needed to help prioritize and analyze various rehabilitation options,as well as to scientifically quantify irrigation water demands,usages,and losses,and to help manage gate ***,commercially available software packages were limited in applications due to their high cost and operational *** study aims to develop a modeling tool for modeling the water flow profile in irrigation distribution *** goal of developing the modeling tool was to make the modeling process simple,fast,reliable and *** the basis of methodological study,the modeling tool has been developed for branching canal networks with the assumption of steady gradually varied *** flow profile calculation of the tool was verified from a single channel with 1%root mean squared error compared to the benchmark calculation and a branching network with 5%to 12%relative errors compared to check point measurement along the *** developed modeling tool will be able to play an important role in water quantification for planning,analysis and development for modernization of irrigation systems.

关键词： irrigation distribution network modeling tool flow profiling

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