title: Drop formation in shear-thickening granular suspensions.
abstract: We study droplet formation in granular suspensions by systematically varying the volume fractions (φ) and particle diameters (d). For suspensions with water as the suspending liquid, we find three different regimes. For dilute suspensions (φ≤45%), drop formation follows the predictions for inertial breakup and exhibits identical dynamics to that of pure water. The breakup is strongly asymmetrical in this case. Only for more concentrated suspensions (φ>45%) does the presence of particles change the dynamics and two other regimes, a symmetrical inertial regime and a Bagnoldian regime, are uncovered. We construct and discuss a phase diagram that allows us to understand and predict the breakup behavior in granular suspensions.
authors.affiliation: Soft Matter group, Van der Waals-Zeeman Institute, IoP, Science Park 904, Amsterdam, Netherlands.
authors.forename: Zhongcheng
authors.initials: Z
authors.lastname: Pan
authors.affiliation: Université de Bordeaux, Laboratoire Ondes et Matière d'Aquitaine CNRS UMR 5798, 351 cours de la Libération, 33405, Talence, France.
authors.forename: Nicolas
authors.initials: N
authors.lastname: Louvet
authors.affiliation: Soft Matter group, Van der Waals-Zeeman Institute, IoP, Science Park 904, Amsterdam, Netherlands.
authors.forename: Yves
authors.initials: Y
authors.lastname: Hennequin
authors.affiliation: Université de Bordeaux, Laboratoire Ondes et Matière d'Aquitaine CNRS UMR 5798, 351 cours de la Libération, 33405, Talence, France.
authors.forename: Hamid
authors.initials: H
authors.lastname: Kellay
authors.affiliation: Soft Matter group, Van der Waals-Zeeman Institute, IoP, Science Park 904, Amsterdam, Netherlands.
authors.forename: Daniel
authors.initials: D
authors.lastname: Bonn