人民黄河2025，Vol.47Issue(5)：122-128,7.DOI:10.3969/j.issn.1000-1379.2025.05.020
基于EPANET的微灌小区灌水均匀度研究
Research on the Plot Irrigation Uniformity of Micro-Irrigation System Based on EPANET
摘要
Abstract
In order to improve the irrigation quality of the large-scale micro-irrigation network,three single factor tests and a UL9(33)uni-form orthogonal test were adopted based on EPANET simulation software.The effects of capillary diameter,emitter flow,and branch inlet pressure on the irrigation uniformity of different micro-irrigation networks were studied,in a case of hydraulic calculation unit with the length of 500 m and the width of 200 m.The results show that:the EPANET software can effectively simulate the hydraulic performance of micro-ir-rigation system.In a tree-type pipeline network,increasing the capillary diameter will slightly improve the irrigation uniformity of irrigation plot,with an increase of 0.24%.While in a mixed-type pipeline network,the irrigation uniformity first significantly increases with the in-creasing of capillary diameter and then tends to flatten out,with an increase of 6.61%.The uniformity of irrigation decreases with the increase of emitter flow in both tree-type and mixed-type pipeline network,with a decrease of 4.50%and 3.37%,respectively.The effect of increasing the branch inlet pressure on improving the uniformity of irrigation in both types of pipeline networks is not significant,with an increase of 0.19%and 0.16%,respectively.Ranked in descending order,the impact of each factor on the irrigation uniformity of a tree-type pipeline network is emitter flow,branch inlet pressure,and capillary diameter,while the impact on the irrigation uniformity of a mixed-type pipeline network is the capillary diameter,emitter flow,and branch inlet pressure.Among the three factors,the impact of emitter flow on both types of pipeline networks is significant,while capillary diameter only has a significant effect on the mixed-type pipeline network.The impact of branch inlet pressure on both types of pipeline networks is not significant.Under the conditions of constant capillary diameter,the emitter flow,and the pressure at the inlet of branch,the irrigation uniformity in a mixed-type pipeline network is improved by 2.03%～8.40%,6.95%～8.08%,and 7.75%～7.72%,respectively compared with a tree-type pipeline network.Therefore,adopting a mixed-type pipeline network and selecting appropriate emitter flow have a great significance for ensuring the irrigation quality of a large-scale micro-irrigation system.关键词
规模化微灌管网/毛管管径/滴头流量/支管首部压力/灌水均匀度/EPANETKey words
large-scale micro-irrigation network/capillary diameter/emitter flow/pressure at inlet of branch/irrigation uniformity/EPA-NET分类
农业科技引用本文复制引用
仵峰,黄静,宰松梅,聂敏敏,刘伟业,高兴杰..基于EPANET的微灌小区灌水均匀度研究[J].人民黄河,2025,47(5):122-128,7.基金项目
国家重点研发计划项目(2022YFD1900402) （2022YFD1900402）
