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对温室固定管双流体冷雾器的喷雾性能模拟和实验分析,具有不同的喷嘴设置

Xue Li^1,2, David Nuyttens³, Tao Xu¹

¹Institute of Agricultural Facilities and Equipment, Jiangsu Academy of Agricultural Sciences, Nanjing, China.

Pest management science

|August 13, 2024

概括

在受保护的种植中,固定管双流体雾器 (FTCF) 的最佳喷嘴设置被确定为中间交叉倒置 (MCI) 配置,间隔2米. 这种设置通过优化空气流和滴滴沉积来确保有效的农药应用.

科学领域:

农业工程农业工程
保护种植技术保护种植技术
计算流体动力学的流体动力学.

背景情况:

用于保护种植的农药应用设备往往缺乏高效率.
作为一种潜在的解决方案,开发了一种固定管双流体雾器 (FTCF).
调查最佳的喷嘴布局和喷雾性能对于有效的农药输送至关重要.

研究的目的:

为了确定FTCF的最佳喷嘴布局和喷雾性能.
使用计算流体动力学 (CFD) 分析空气流分布和喷雾沉积.
用温室喷雾试验数据验证CFD模型.

主要方法:

使用欧勒-拉格朗奇方法利用计算流体动力学 (CFD).
模拟空气流和喷雾沉积,用于六个喷嘴设置 (两个配置:MCI和BMO;三个间隔:2米,3米,4米).
进行了温室喷雾试验,用于模型验证.

主要成果:

与双边倒置相反 (BMO) 配置相比,中间交叉倒置 (MCI) 配置显示出更高的空气流干扰和空气导向效应.
在MCI-2m喷嘴设置实现了最低的变化系数 (CV) 的地面沉积 (20.56%).
实验和模拟喷雾沉积结果显示出高一致性.

结论:

FTCF系统有效地在温室中创建了一个三维的空气流场.
FTCF的喷气流扰乱了温室气流,促进了滴水悬浮和分散.
该研究为改善保护种植中的农药应用技术提供了有价值的见解.

关键词:

欧勒拉格朗奇的方法.空气流的分布是空气流的分布.温室喷雾剂的温室喷雾剂是什么喷雾沉积的喷雾沉积方式双流体喷嘴双流体喷嘴

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