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采用数理统计方法研究不同实验工况下雾化液滴的粒径分布规律,研究发现:在不同实验工况下,雾化液滴的粒径大小均呈现一定的分布形式,且随喷射流量的增大,粒径分布的中位径总体变化呈减小趋势;通过Pearson χ2拟合优度检验,液滴粒径分布假设为Rosin-Rammler分布函数时,其显著性水平在所有实验工况内均达到0.01;基于Rosin-Rammler分布密度函数计算出不同实验工况下4种粒径的质量分数,喷射流量为50 mL/min时液滴粒径集中在0.7～1.0 mm之间。
The particle size distribution of atomized droplets under different experimental conditions was studied by using mathematical statistics. The results showed that under different experimental conditions, the particle size of atomized droplets showed a certain distribution, and with the jet flow When the particle size distribution of the droplet is assumed to be the Rosin-Rammler distribution function, the significance level of the droplet size distribution in all experimental conditions 0.01). The mass fractions of four kinds of particles under different experimental conditions were calculated based on the Rosin-Rammler distribution density function. When the jet flow rate was 50 mL / min, the droplet size was concentrated in the range of 0.7-1.0 mm.