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.

中文翻译：

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含颗粒液体片的铺展和破碎

液体薄片的碎裂产生液滴的集合。液滴的尺寸分布对喷雾的涂覆效率和污染物的输送有相当大的影响。尽管许多方法通常使用颗粒悬浮液，但迄今为止，颗粒对片材铺展动力学及其随后的破碎的影响可以忽略不计。在本文中，我们在实验上考虑了一个径向扩展的瞬态悬挂片。我们表征了颗粒对液体片的动力学和破碎过程的影响。我们强调指出，颗粒的存在会改变厚度，并降低液体片的稳定性。我们的研究表明，颗粒可以通过毛细作用显着改变液膜的动力学，