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Simulation Study of Water Spraying System of Lotus Root Digger Based on Submerged Water Jets

Published: 29 April 2024 Publication History

Abstract

In order to analyze the influence of the structural parameters of the water jet system of the lotus root digger on harvesting efficiency, this paper determines the main factors affecting the harvesting performance based on the principle of a "submerged" water jet for the nozzle outlet shape, outlet area, jet direction, and target distance. Using CFD simulation, it simulates the effect of the velocity distribution, jet impact force, and jet distribution on the harvesting development of the two-nozzle water jet hitting the water layer under different jet angles and target distances. The influence of the jet distribution on the harvesting effect when the water jet hits the water layer at different spray angles and target distances was simulated under different nozzle structure parameters. The results show that the performance of a round outlet nozzle is better than that of an oval, rectangular, and square outlet, and when the outlet size is set at 15∼16mm and the jet velocity is about 20m/s, the scouring effect is better and it can ensure that the couplings are not broken; when double nozzles are used, with the spray angle of 20∼30° and the target distance of 200mm, the effective scouring area of the jet is more extensive and the scouring effect is better.

References

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Li, W., Jiao, W. & Li, Y. 2023. Research status and development trend of lotus root harvesting machinery. Agricultural Equipment & Vehicle Engineering, 61 (02): 66-68+168.
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Li, X., Du, Z. & Liu, H. 2021. Mechanized operation technology of lotus root planting in shallow water. Journal of Changjiang vegetables, (17):7-10.
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Wang, W., Chen, J. & Bi, Q. 2022. Design and experimentation of harvesting device for paddy-field lotus. South Forum, 53(14): 51-52+55.
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Huang, L., Zhou, Y., & Zhang. G. 2021. Design and experiment of walking hydraulic scourtype lotus root digging machine. Journal of Huazhong Agricultural University, 40(05), 207-216.
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Zhang, Z., Zhao, J., & Tang. X. 2022. Simulation and optimization of lotus root digging machine sprinkler systembased on EDEM -Fluent. Journal of Shandong University (Engineering Science Edition), 52 (03), 86-93+99.
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Chao, W., Zhou, Y., & Yue. J. 2020. Simulation analysis of flow uniformity at width lotus root digging machine multi-nozzle. Agricultural Equipment and Vehicle Engineering, 58 (06), 30-32+48.
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Xiao, H. 2015. Development of crawler self-propelled high-efficiency and low-damage hydraulic lotus root harvester. Diss. Shandong Agricultural University
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Huang, L. 2022. Design and experimentation of walking hydraulic scour type lotus root digging machine. Diss. Huazhong Agricultural University.

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Published In

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ICEITSA '23: Proceedings of the 3rd International Conference on Electronic Information Technology and Smart Agriculture
December 2023
541 pages
ISBN:9798400716775
DOI:10.1145/3641343
Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. Copyrights for components of this work owned by others than the author(s) must be honored. Abstracting with credit is permitted. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee. Request permissions from [email protected].

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Association for Computing Machinery

New York, NY, United States

Publication History

Published: 29 April 2024

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Author Tags

  1. CFD Simulation
  2. Lotus Root Digger
  3. Nozzle
  4. Submerged Water Jet

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  • Research-article
  • Research
  • Refereed limited

Funding Sources

  • scientific research project of Key Laboratory of Intelligent Control Technology for Wuling Mountain Ecological Agriculture in Hunan Province
  • Undergraduate innovation and entrepreneurship training program
  • Research Program of Hunan Provincial Department of Education

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ICEITSA 2023

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