实验调查喷雾形成的模式,滴滴大小和尺寸分布在一个旋转盘原子化器
Jian Chen1,2, Wei Hu1,2, Xiaoya Dong2,3
1School of Agricultural Engineering, Jiangsu University, Zhenjiang, China.
Frontiers in plant science
|December 20, 2024
概括
优化用于农业喷的旋盘原子化器可以提高性能. 较高的雷诺兹数 (Re) 和稳定性数 (St) 减少滴滴大小,提高喷雾均性.
科学领域:
- 农业工程 农业工程
- 流体动力学 流体动力学
- 喷雾技术技术 喷雾技术
背景情况:
- 旋盘喷雾器对于农业喷雾至关重要.
- 优化操作条件是提高原子化性能的关键.
研究的目的:
- 研究旋转盘的原子化特征.
- 分析磁盘速度,流速和表面张力对喷雾形成,滴滴大小和分布的影响.
主要方法:
- 高速摄像机摄影以捕捉原子化.
- 使用不同流速和磁盘速度的乙醇水溶液.
- 开发了雷诺兹数 (Re),稳定性数 (St) 和无维滴滴大小 (d) 的相关性.
主要成果:
- 增加的流速转移了喷雾形成模式.
- 滴滴大小随着更高的Re或St,磁盘速度和更低的表面张力而减少.
- -拉姆勒 (RR) 和修改后的-拉姆勒 (MRR) 分布精确模拟了滴滴大小分布.
结论:
- 建议提升Re以缩小滴滴大小范围并提高均性.
- 预测的滴滴大小与实验数据 (±15%) 有很好的一致性.
- 旋盘原子化器的性能受到运行参数和流体性质的重大影响.
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