OPTIMAL STRUCTURAL PARAMETERS OF DRIP LAMINAR EMITTERS USING HIGH SEDIMENT IRRIGATION WATER
文献类型： 外文期刊
作者： Feng, Ji 1 ; Pan, Jiachong 2 ; Liu, Haisheng 3 ; Liu, Yanzheng 1 ; Hou, Peng 4 ; Jiao, Youquan 1 ; Sun, Haosu 5 ; Ma, Changjian 6 ; Ke, Shanshan 7 ;
作者机构： 1.Beijing Vocat Coll Agr, Dept Water Resources & Architectural Engn, Beijing, Peoples R China
2.NETAFIM Agr Technol Co Ltd, Xian, Shanxi, Peoples R China
3.Zhejiang Tongji Vocat Coll Sci & Technol, Hangzhou, Peoples R China
4.China Agr Univ, Coll Water Resources & Civil Engn, Beijing, Peoples R China
5.Daning Management Off Beijing, Beijing, Peoples R China
6.Shandong Acad Agr Sci, Jinan, Peoples R China
7.Min Luxing Int Engn Design & Res Inst, Beijing, Peoples R China
关键词： . Emitter structure optimization; Irrigation water saving; Structural parameter selection; Unconventional water source
期刊名称：APPLIED ENGINEERING IN AGRICULTURE （ 影响因子：0.9； 五年影响因子：1.1 ）
ISSN： 0883-8542
年卷期： 2023 年 39 卷 4 期
页码：
收录情况： SCI
摘要： Emitter clogging can be prevented by exploring the optimal emitter design. However, there is a lack of research on determining the optimal structural parameters of the emitter from the comprehensive perspective of the coordinated development of hydraulic performance and anti-clogging ability, especially when irrigation water with high sediment load is used. In this article, we used the Computational Fluid Dynamics (CFD) technology to visualize the flow feature of high sediment concentration water in the emitter, analyze the velocity vector, velocity near wall feature point, turbulence intensity, hydraulic performance, and correlate the structure parameters and flow coefficient. The most suitable threshold range of the design parameters for emitter low path were: width of 0.8-1.2 mm, length of 27.5-42.5 mm, and depth being less than 1.0 mm. Within this range, emitters of different flow rates can be designed by adjusting the depth. We also found that different structure parameters of the emitter had little impact on the flow index. This study can provide a theoretical basis for effective control emitter clogging in drip irrigation system.
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