A new pipe network for irrigation and drainage:Development and simulation
HU Shaowei
GUO Zeyuan
JIN Wencan
HE Zongyuan
YE Yuxiao
PAN Fuqu
Abstract：[Objective]Acrylate polymer blended with poly(vinyl chloride)resin(ABR)is a composite material to make pipes.This paper investigates the pipe network manufactured by it for irrigation and drainage.[Method]The study was based on field experiments and CFD simulations.Based on performance of the network under different configurations,we optimized the system and applied it to dry-land chili pepper grown in Shandong plains in Northern China.[Result]①Compared with single-ring and tree-like pipe network configurations,the double-ring and equidistant pipe network configuration in the ABR system reduced the coefficient of variation of water discharge for each irrigation-drainage pile by 1.327 to 0.766,thereby enhancing water supply balance.②The suitable area for a single set of pipe network systems was 1.5 hm2,and the distance between the irrigation-drainage piles was 50 m.Under these conditions,water flow velocity at the outlet of each pile varied from 0.60 to 0.24 m/s,and each irrigation event can be completed in 12 h.③The drainage capacity of each pile was 28.8 m3/h,sufficient to alleviate waterlogging during heavy rainfalls.[Conclusion]The proposed irrigation-drainage system significantly improved irrigation and flooding-control for the chili pepper grown in the dryland in the study area.It has a wide implication and application for crop productions in other regions.
Keywords：agricultural water conservancyirrigation and drainage systemnumerical simulationABR pipe
Publication Date：2024-08-28
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：9( 21-29 )