This paper focuses on the statistical analysis of a droplet population produced by a pressure-atomized jet spray, laying in the second-wind-induced regime, far behind the nozzle. The droplet size and axial velocity derived from droplet tracking velocimetry measurements are shown to follow bimodal distributions and their modeling is tackled in the framework of turbulence and of combustion applications, respectively. In addition, the existence of subsets of droplets showing specific behaviors is brought to light from the analysis of the experimental droplet-size–velocity joint probability distribution function (PDF). Such subsets can be precisely defined using the properties of the size and axial-velocity distributions. Finally, the trend of the joint PDF is depicted due to a quadratic relationship which is derived in the context of combustion and shown to work here as well, far behind the nozzle.

中文翻译：

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农业状喷雾剂的多峰分布：压力雾化喷雾剂中滴剂种群的统计分析

本文着重于对由压力雾化的喷射喷雾产生的液滴总体的统计分析，该液滴分布在第二风诱导状态下，远远位于喷嘴之后。从液滴跟踪测速法测量得出的液滴尺寸和轴向速度显示遵循双峰分布，并且分别在湍流和燃烧应用的框架内解决了它们的建模问题。此外，通过实验性的液滴尺寸-速度联合概率分布函数（PDF）的分析，可以揭示出具有特定行为的液滴子集的存在。可以使用尺寸和轴向速度分布的属性精确定义这些子集。最后，