论文标题
含粒子液体板的扩散和碎片
Spreading and fragmentation of particle-laden liquid sheets
论文作者
论文摘要
液体板的碎片产生了一堆液滴。液滴的尺寸分布对喷雾剂的涂料效率和污染物的运输有很大影响。尽管许多过程通常使用的颗粒悬浮液，但颗粒对板的扩散动力学及其随后的碎片的影响被认为可以忽略不计。在本文中，我们在实验上考虑了径向扩展的瞬态悬架表。我们表征了颗粒对液体板动力学和碎片过程的影响。我们强调，颗粒的存在会改变厚度并降低液体板的稳定性。我们的研究表明，颗粒可以通过毛细管效应显着修改液体膜的动力学，即使体积分数远小于最大填料。
The fragmentation of liquid sheets produces a collection of droplets. The size distribution of the droplets has a considerable impact on the coating efficiency of sprays and the transport of contaminants. Although many processes commonly used particulate suspensions, the influence of the particles on the spreading dynamics of the sheet and its subsequent fragmentation has so far been considered negligible. In this paper, we consider experimentally a transient suspension sheet that expands radially. We characterize the influence of the particles on the dynamics of the liquid sheet and the fragmentation process. We highlight that the presence of particles modifies the thickness and reduces the stability of the liquid sheet. Our study suggests that particles can significantly modify the dynamics of liquid films through capillary effects, even for volume fractions much smaller than the maximum packing.
