A liquid sheet breaks up into drops by fast air streams at airblast type atomizers, which are widely utilized for jet engines. Fuel spray flux in space directly determines the local mass ratio of fuel to air inside a combustion chamber. However, it has been difficult to measure the quantitative spatial distribution of spray flux using laser techniques and mechanical patternators. Therefore, in the present study, we have developed a new shape of 3D printed patternator applicable to the measurement of spray flux distribution by a planar airblast atomizer, and quantitative data are presented at the conditions of gas velocity up to 100 m/s with changing atomizer configuration and liquid species as water and kerosene. Laser technique of Phase Doppler Anemometer and high-speed visualization are complementary conducted with theoretical investigation. The experimental results of spray flux distributions are consistently normalized by the proposed dimensionless injection condition based on the square root of momentum ratio of spreading drops to gas stream. The applicable limit of the present modeling framework is given by Weber number based on the ratio of inertia of gas stream to liquid surface tension.

在高速喷射型雾化器中，液体片材通过快速气流分裂成液滴，该雾化器广泛用于喷气发动机。空间中的燃油喷雾通量直接决定了燃烧室内燃油与空气的局部质量比。然而，使用激光技术和机械图案形成器难以测量喷雾通量的定量空间分布。因此，在本研究中，我们开发了一种新形状的3D打印图案形成器，适用于通过平面鼓风雾化器测量喷雾通量分布，并且在气体速度高达100 m / s的条件下，随着变化，给出了定量数据。雾化器的配置和液体种类为水和煤油。相多普勒风速计的激光技术和高速可视化是理论研究的补充。喷雾通量分布的实验结果始终根据所提出的无量纲的喷射条件归一化，该条件基于散布液滴与气流的动量比的平方根。基于气流的惯性与液体表面张力的比，由韦伯数给出本建模框架的适用极限。