粒度分布函数在柴油机喷雾测量中的应用和比较

A Comparative Study on the Application of Droplet Size Distribution Functions in Diesel Spray Measurement

本文根据激光衍射粒子分析仪在各种不同实验条件下测得的大量柴油机喷雾数据，对测量中应用的几种粒度分布模型（函数）做了比较研究。发现对于柴油机喷雾测量，独立分布效果最好。但若欲用经验分布预测未知喷雾特性，则Ｒ－Ｒ分布较好。文中还对实验数据做了统计。

A comparative study was conducted on three types of size distribution functions used in diesel sprays.The data were obtained under various experimental conditions by a particle sizer based on Laser diffraction principle.It is found that for measuring the characteristics of diesel fuel sprays the independent model is the best,though for predictability the R R distribution function is more suitable.The numerical value range and the occurrence frequencies of distribution parameter of R R function have also been given according to the statistics of experiment data.