


Water droplet distribution for non-circular sprinkler nozzles
Vol 4, Issue 1, 2023
VIEWS - 3076 (Abstract)
Download PDF
Abstract
Objective: The study sought to investigate the distribution law of the diameter, velocity, and kinetic energy of water droplets in specially designed nozzles. Method: An indoor windless water droplet dispersion test on the PY15 rocker-arm sprinkler was performed using a video raindrop spectrometer at five working pressures: 100 kPa, 150 kPa, 200 kPa, 250 kPa, and 300 kPa. Result: The equal-flow nozzle has the following range: circle > rhombus > ellipse; the shape coefficient of the special-shaped nozzle decreases with increasing outlet diameter and increases with increasing aspect ratio; the diameter of the rhombus nozzle’s water droplet increases radially. Conclusion: Under the same working pressure, the diameter of the water droplet at the end decreases as the form coefficient increases. The wider the outlet’s diameter, the longer the range and the greater the increase in the velocity of the water droplets. The larger the aspect ratio, the shorter the range and the greater the average diameter and velocity of the droplets. The elliptical nozzle has the lowest droplet velocity increase as droplet diameter increases. The impacting kinetic energy and growth range of water droplets per unit volume at the same position decrease as the pressure increases. Along the radial direction, the droplet velocity and diameter are logarithmic, while the droplet kinetic energy and diameter are exponential and linear functions. The relationship between the shape coefficient, outlet diameter, aspect ratio, and droplet distribution characteristics of the shaped nozzle can be simulated using the fitting coefficients of the three droplet distribution prediction models, all of which are above 0.9.
Keywords
References
Refbacks
- There are currently no refbacks.
Copyright (c) 2023 Jialing Liu, Jixiang Wan, Hao Li, Yue Jiang
License URL: https://creativecommons.org/licenses/by/4.0/

This site is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).

Prof. Zhengjun Qiu
Zhejiang University, China

Cheng Sun
Academician of World Academy of Productivity Science; Executive Chairman, World Confederation of Productivity Science China Chapter, China
Indexing & Archiving
In the realm of modern agriculture, the integration of cutting-edge technologies is revolutionizing the way we approach sustainable farming practices. A recent study published in Advances in Modern Agriculture titled "Classification of cotton water stress using convolutional neural networks and UAV-based RGB imagery" has garnered significant attention for its innovative approach to precision irrigation management. Conducted by researchers from Institute of Data Science and the AgriLife Research and Extension Center of Texas A&M University (authors's information is below). This study introduces a novel method for classifying cotton water stress using unmanned aerial vehicles (UAVs) and convolutional neural networks (CNNs), offering a powerful solution for optimizing water use in agriculture.
Modern agricultural technology is evolving rapidly, with scientists collaborating with leading agricultural enterprises to develop intelligent management practices. These practices utilize advanced systems that provide tailored fertilization and treatment options for large-scale land management.
This journal values human initiative and intelligence, and the employment of AI technologies to write papers that replace the human mind is expressly prohibited. When there is a suspicious submission that uses AI tools to quickly piece together and generate research results, the editorial board of the journal will reject the article, and all journals under the publisher's umbrella will prohibit all authors from submitting their articles.
Readers and authors are asked to exercise caution and strictly adhere to the journal's policy regarding the usage of Artificial Intelligence Generated Content (AIGC) tools.
Asia Pacific Academy of Science Pte. Ltd. (APACSCI) specializes in international journal publishing. APACSCI adopts the open access publishing model and provides an important communication bridge for academic groups whose interest fields include engineering, technology, medicine, computer, mathematics, agriculture and forestry, and environment.