Spreading and fragmentation of particle-laden liquid sheets
Résumé
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
Domaines
Matière Molle [cond-mat.soft]
Origine : Fichiers produits par l'(les) auteur(s)