Parametric Analysis on Water Droplet Dynamics and Phase Change

Lorenzini G.; Saro O.; Lorenzini E.

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Parametric Analysis on Water Droplet Dynamics and Phase Change

机译：水滴动力学和相变的参数分析

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The present paper deepens the analysis on the dynamics and thermal-fluid-dynamics of a sprinkler nozzle-emitted water droplet traveling in air before reaching the ground. The following analysis variables were considered, as main causes of the phenomenon assessed: initial droplet diameter, initial droplet velocity, initial droplet temperature, variable droplet temperature, air temperature, diffusion coefficient of water in air, air relative humidity, inlet droplet throw inclination, thermal radiation, and wind velocity. These variables proved their effect on the droplet travel distance, the droplet time of flight, and the final droplet temperature. The study was carried out thanks to an analytical-numerical model, recently proposed by the same authors of this paper, equipped with a few assumptions that did not alter the realistic description provided. The results proved the effect of each analysis variable and clarify the picture of a complicate yet extremely important phenomenon.

机译：本文深化了在到达地面之前在空气中行进的喷管喷嘴发射的水滴动力学和热流体动力学的分析。考虑了以下分析变量，作为评估现象的主要原因：初始液滴直径，初始液滴速度，初始液滴温度，可变液滴温度，空气温度，空气中的水扩散系数，空气相对湿度，进气液滴倾斜，热辐射和风速。这些变量证明了它们对液滴行进距离，飞行液滴时间和最终液滴温度的影响。该研究是由于借助本论文的同一作者提出的分析 - 数值模型进行了研究，配备了一些没有改变提供的现实描述的假设。结果证明了每个分析变量的效果，并阐明了复杂的图像变得非常重要的现象。

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《Journal of engineering thermophysics》 |2019年第2期|共28页
作者
Lorenzini G.; Saro O.; Lorenzini E.;
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作者单位

Univ Parma Dipartimento Ingn &

Architettura Parco Area Sci 181-A I-43124 Parma Italy;

Univ Udine Politech Dept Engn &

Architecture Udine Italy;

Alma Mater Studiorum Univ Bologna Dept Ind Engn Bologna Italy;

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正文语种 eng
中图分类热力工程、热机;
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1. Parametric Analysis on Water Droplet Dynamics and Phase Change [J] . Lorenzini G., Saro O., Lorenzini E. Journal of engineering thermophysics . 2019,第2期

机译：水滴动力学和相变的参数分析
2. A combined experimental and computational study of phase-change dynamics and flow inside a sessile water droplet freezing due to interfacial heat transfer [J] . Victor Voulgaropoulos, Mohammadreza Kadivar, Mohammad Ardekani Moghimi, International Journal of Heat and Mass Transfer . 2021,第Deca期

机译：相变动力学的组合实验和计算研究及围绕界面传热引起的术术
3. Modeling and analysis of water droplet dynamics in the dead-ended anode gas channel for proton exchange membrane fuel cells [J] . Shao Heng, Qiu Diankai, Peng Linfa, Renewable energy . 2019,第AUGa期

机译：质子交换膜燃料电池阳极末端气体通道中水滴动力学的建模与分析
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机译：与气泡和液滴相关的相变和动力学的数值分析
5. Flow fields of air-liquid droplet two-phase mixture and collision dynamics of a droplet on a surface [D] . Fujimoto, Hitoshi 1995

机译：气液两相混合物的流场和表面上液滴的碰撞动力学
6. The surface morphology and dynamic impact properties with rebounding and splashing of water droplet on phase separation and breath figure assisted electrospinning films [O] . Que Kong, Zhiguang Li, Xuehong Ren, 2021

机译：相分离和呼吸图水滴的表面形态和动态冲击性能与呼吸图辅助静电纺丝膜的反弹和溅起
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8. Two-Phase Nozzle Theory and Parametric Analysis. Phase II. Parametric Analysis and Optimization [R] . Kuo, S. C., Deane, C. W. 1981

机译：两相喷嘴理论与参数分析。第二阶段。参数分析与优化

Parametric Analysis on Water Droplet Dynamics and Phase Change

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