The paper presents experimental research findings on binary collisions of droplets of water, glycerol and surfactant solutions containing fluorophore and a dye to record the position and form of the droplet-droplet interface at the moment of collision. The fluorophore used in the first droplet was Rhodamine B with a concentration of 1,000 μg/l. The gel dye concentration in the second droplet was 0.5 vol%. The integral characteristics of droplet miscibility were investigated by analyzing changes in the fluorescence intensity of liquid when recording laser-induced fluorescence effects. Droplets were illuminated by a system of spotlights and a continuous wave laser. Droplet collisions were captured by a high-speed video camera. The conditions were recorded for the formation of a droplet-droplet interface with different geometry while varying the dimensions, velocities, trajectories and impact angles. After processing the video frames, we plotted collision regime maps, calculated the ratios of free surface areas of liquid before and after droplet breakup, and determined the characteristics of secondary fragments. In particular, fragments of the target and projectile, as well as mixed fragments were distinguished. The fluorescence of two initial droplets and the droplet formed from their coalescence was recorded. We established the characteristics of the near-surface layer deformation of two colliding droplets and rates of liquid miscibility, as well as times of complete miscibility of droplets during coalescence.

本文介绍了对水滴，甘油和含荧光团和染料的表面活性剂溶液的二元碰撞进行实验研究的结果，以记录碰撞时液滴与液滴界面的位置和形式。在第一液滴中使用的荧光团是若丹明B，浓度为1,000μg/ l。第二液滴中的凝胶染料浓度为0.5体积％。通过分析记录激光诱导的荧光效应时液体的荧光强度变化，研究了液滴可混溶性的整体特征。液滴由聚光灯和连续波激光系统照明。高速摄像机捕获了液滴碰撞。记录形成具有不同几何形状同时改变尺寸，速度，轨迹和冲击角的液滴-液滴界面的条件。在处理完视频帧后，我们绘制了碰撞状态图，计算了液滴破裂前后液体自由表面积的比率，并确定了次级碎片的特征。特别是，目标和弹丸的碎片，以及混合的碎片都被区分了。记录两个初始液滴的荧光以及由其合并形成的液滴。我们建立了两个碰撞液滴的近表层变形和液体混溶速率以及在聚结过程中液滴完全混溶时间的特征。在处理完视频帧后，我们绘制了碰撞状态图，计算了液滴破裂前后液体自由表面积的比率，并确定了次级碎片的特征。特别是，目标和弹丸的碎片，以及混合的碎片都被区分了。记录两个初始液滴的荧光以及由其合并形成的液滴。我们建立了两个碰撞液滴的近表层变形和液体混溶速率以及在聚结过程中液滴完全混溶时间的特征。在处理完视频帧后，我们绘制了碰撞状态图，计算了液滴破裂前后液体自由表面积的比率，并确定了次级碎片的特征。特别是，目标和弹丸的碎片，以及混合的碎片都被区分了。记录两个初始液滴的荧光以及由其合并形成的液滴。我们建立了两个碰撞液滴的近表层变形和液体混溶速率以及在聚结过程中液滴完全混溶时间的特征。区分了目标和弹丸的碎片以及混合碎片。记录两个初始液滴的荧光以及由其合并形成的液滴。我们建立了两个碰撞液滴的近表层变形和液体混溶速率以及在聚结过程中液滴完全混溶时间的特征。区分了目标和弹丸的碎片以及混合碎片。记录两个初始液滴的荧光以及由其合并形成的液滴。我们建立了两个碰撞液滴的近表层变形和液体混溶速率以及在聚结过程中液滴完全混溶时间的特征。