IDEAS home Printed from https://ideas.repec.org/a/gam/jagris/v13y2023i6p1160-d1159884.html
   My bibliography  Save this article

Mechanism Analysis of the Influence of Structural Parameters on the Hydraulic Performance of the Novel Y-Shaped Emitter

Author

Listed:
  • Chaoxi Li

    (College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Zhiqin Li

    (College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Peisen Du

    (College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Juanjuan Ma

    (College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

  • Simin Li

    (College of Water Resources Science and Engineering, Taiyuan University of Technology, Taiyuan 030024, China)

Abstract

As a key component of a drip irrigation system, the performance of drip irrigation emitters is determined by the flow channel structures and parameters. In this paper, a novel Y-shaped labyrinth-channel emitter was proposed, and the influence of the hydraulic performance was researched under different waist-arc angles (α) and ratios of crown height to chord length (a:b). The flow characteristics and energy dissipation mechanisms of water in the emitter were analyzed by using fluid dynamics software. The analysis showed that, keeping the ratio of crown height to chord length unchanged and with an increase in the waist-arc angle from 90° to 180°, the pressure-drop ratio before and after the water flow through the vortex area increased, and the hydraulic performance of the emitter was improved, specifically: the design flow could be reduced by 6.02–26.7%, and the slope of the curve could be reduced by 9.83–28.1%. The smaller the ratio of crown height to chord length, the weaker the influence of waist-arc angle was on the design flow and hydraulic performance. Keeping the waist-arc angle unchanged, there was a decrease in the ratio of crown height to chord length from 6:30 to 1:30, the vortex strength inside the emitter channel increased, and the hydraulic performance was improved: the design flow could be reduced by 7.56–23.5%, and the slope of the curve could be reduced by 5.43–20.5%. The bigger the waist-arc angle, the weaker the influence of the ratio of crown height to chord length was on the design flow and the hydraulic performance, even to the point of having no effect. When the Y-shaped emitter was close to the pressure-flow curve slope of the commonly-used triangular-channel emitter, the hydraulic performance of the two was similar, and the former could increase the channel width by 25%, as compared to the latter, or shorten the channel length by 44.3%. The results showed that the Y-shaped emitter had better hydraulic performance compared with the triangular-flow-channel emitter commonly used today. Therefore, the Y-shaped emitter has broad application prospects in water-saving irrigation.

Suggested Citation

  • Chaoxi Li & Zhiqin Li & Peisen Du & Juanjuan Ma & Simin Li, 2023. "Mechanism Analysis of the Influence of Structural Parameters on the Hydraulic Performance of the Novel Y-Shaped Emitter," Agriculture, MDPI, vol. 13(6), pages 1-17, May.
    • Handle: RePEc:gam:jagris:v:13:y:2023:i:6:p:1160-:d:1159884
    as

    Download full text from publisher

    File URL: https://www.mdpi.com/2077-0472/13/6/1160/pdf
    Download Restriction: no
    File URL: https://www.mdpi.com/2077-0472/13/6/1160/
    Download Restriction: no
    ---><---

    References listed on IDEAS

    as
    1. Wei, Qingsong & Shi, Yusheng & Dong, Wenchu & Lu, Gang & Huang, Shuhuai, 2006. "Study on hydraulic performance of drip emitters by computational fluid dynamics," Agricultural Water Management, Elsevier, vol. 84(1-2), pages 130-136, July.
    2. Nogueira, Virgílio Henrique Barros & Diotto, Adriano Valentim & Thebaldi, Michael Silveira & Colombo, Alberto & Silva, Yasmin Fernandes & Lima, Elvis Marcio de Castro & Resende, Gabriel Felipe Lima, 2021. "Variation in the flow rate of drip emitters in a subsurface irrigation system for different soil types," Agricultural Water Management, Elsevier, vol. 243(C).
    Full references (including those not matched with items on IDEAS)

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Peisen Du & Zhiqin Li & Ruixia Hao & Juanjuan Ma & Da Yan, 2023. "Hydraulic Performance and Energy Dissipation Mechanism Analysis of the Tesla-Shaped Emitter," Energies, MDPI, vol. 16(14), pages 1-17, July.

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Wang, Haitao & Qiu, Xuefeng & Liang, Xiaoyang & Wang, Hang & Wang, Jiandong, 2024. "Biogas slurry change the transport and distribution of soil water under drip irrigation," Agricultural Water Management, Elsevier, vol. 294(C).
    2. Wang, Jiaxin & He, Xinlin & Gong, Ping & Heng, Tong & Zhao, Danqi & Wang, Chunxia & Chen, Quan & Wei, Jie & Lin, Ping & Yang, Guang, 2024. "Response of fragrant pear quality and water productivity to lateral depth and irrigation amount," Agricultural Water Management, Elsevier, vol. 292(C).
    3. Muniz, Gustavo L. & Camargo, Antonio P. & Signorelli, Filipe & Bertran, Celso A. & Pereira, Diego J.S. & Frizzone, José A., 2022. "Influence of suspended solid particles on calcium carbonate fouling in dripper labyrinths," Agricultural Water Management, Elsevier, vol. 273(C).
    4. Wang, Ce & Ye, Jinyang & Zhai, Yaming & Kurexi, Wuerkaixi & Xing, Dong & Feng, Genxiang & Zhang, Qun & Zhang, Zhanyu, 2023. "Dynamics of Moistube discharge, soil-water redistribution and wetting morphology in response to regulated working pressure heads," Agricultural Water Management, Elsevier, vol. 282(C).
    5. Wang, Jian & Tian, Zuokun & Yang, Ting & Li, Xuechun & He, Qiu & Wang, Duo & Chen, Rui, 2024. "Characteristics of limited flow and soil water infiltration boundary of a subsurface drip irrigation emitter in silty loam soil," Agricultural Water Management, Elsevier, vol. 291(C).
    6. Ni Gao & Yan Mo & Jiandong Wang & Luhua Yang & Shihong Gong, 2022. "Effects of Flow Path Geometrical Parameters on the Hydraulic Performance of Variable Flow Emitters at the Conventional Water Supply Stage," Agriculture, MDPI, vol. 12(10), pages 1-17, September.
    7. Zhou, Hongxu & Li, Yunkai & Wang, Yan & Zhou, Bo & Bhattarai, Rabin, 2019. "Composite fouling of drip emitters applying surface water with high sand concentration: Dynamic variation and formation mechanism," Agricultural Water Management, Elsevier, vol. 215(C), pages 25-43.
    8. Cuncai Wang & Zhiqin Li & Juanjuan Ma, 2021. "Influence of Emitter Structure on Its Hydraulic Performance Based on the Vortex," Agriculture, MDPI, vol. 11(6), pages 1-12, May.
    9. Seyedzadeh, Amin & Maroufpoor, Saman & Maroufpoor, Eisa & Shiri, Jalal & Bozorg-Haddad, Omid & Gavazi, Farnoosh, 2020. "Artificial intelligence approach to estimate discharge of drip tape irrigation based on temperature and pressure," Agricultural Water Management, Elsevier, vol. 228(C).

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:gam:jagris:v:13:y:2023:i:6:p:1160-:d:1159884. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: MDPI Indexing Manager (email available below). General contact details of provider: https://www.mdpi.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.