Effects of Structural Parameters on Flow Uniformity in Micro-Sprinkling Hoses Using Orthogonal Experimental Design

IF 1.7 4区农林科学 Q2 AGRONOMY

Irrigation and Drainage Pub Date : 2025-10-29 DOI:10.1002/ird.70041

Rong Wei, Shilei Wang, Wene Wang, Jakobus Ernst Van Zyl, Xiaotao Hu

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Abstract

This study investigated the influence of structural parameters on flow uniformity in micro-sprinkling hoses, a cost-effective irrigation tool that aids water conservation. The effectiveness of these hoses depends on the uniformity of the flow rates from their orifices. However, previous research has not adequately addressed how structural parameters affect flow uniformity in individual orifice groups. Five independent parameters were examined via an orthogonal experimental design: the folded diameter (D_N), orifice diameter (d), number of orifices (n), angle (α) and distance from the edge to the first orifice (s′). Flow uniformity was evaluated by the Christiansen coefficient. The results indicated that pressure has an insignificant effect on flow uniformity. Based on the range analysis and analysis of variance results, the order of significant factors affecting flow uniformity is D_N > s′ > d > α > n. The Christiansen coefficient initially increases with D_N and then decreases. The other four parameters exhibit a strong nonlinear relationship with the Christiansen coefficient. The optimal structural parameter combination for the best flow distribution is s′ = 2 mm, D_N = 50 mm, d = 1.5 mm, n = 11 and α = 60°. These findings offer valuable insights for improving micro-sprinkling hose design.

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正交试验设计研究结构参数对微喷软管流动均匀性的影响

摘要本研究探讨了微喷灌软管结构参数对其流动均匀性的影响，微喷灌软管是一种经济高效的节水灌溉工具。这些软管的有效性取决于从其孔流出的流量的均匀性。然而，以往的研究并没有充分解决结构参数如何影响单个孔组的流动均匀性。通过正交实验设计考察了五个独立参数：折叠直径（DN）、孔直径(d)、孔数(n)、角度（α）和从边缘到第一孔的距离（s’）。用Christiansen系数评价流动均匀性。结果表明，压力对流动均匀性的影响不显著。根据极差分析和方差分析结果，影响流动均匀性的显著因素排序为DN >； s’> d > α > n。Christiansen系数随DN先增大后减小。其他四个参数与克里斯滕森系数表现出强烈的非线性关系。最优流场结构参数组合为s′= 2 mm, DN = 50 mm, d = 1.5 mm, n = 11, α = 60°。这些发现为改进微喷灌软管的设计提供了有价值的见解。

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来源期刊

Irrigation and Drainage 农林科学-农艺学

CiteScore

3.40

自引率

10.50%

发文量

107

审稿时长

3 months

期刊介绍： Human intervention in the control of water for sustainable agricultural development involves the application of technology and management approaches to: (i) provide the appropriate quantities of water when it is needed by the crops, (ii) prevent salinisation and water-logging of the root zone, (iii) protect land from flooding, and (iv) maximise the beneficial use of water by appropriate allocation, conservation and reuse. All this has to be achieved within a framework of economic, social and environmental constraints. The Journal, therefore, covers a wide range of subjects, advancement in which, through high quality papers in the Journal, will make a significant contribution to the enormous task of satisfying the needs of the world’s ever-increasing population. The Journal also publishes book reviews.