title: Steady-state deformation behavior of confined composite droplets under shear flow.
abstract: The shear-induced dynamics of two-dimensional composite droplets in a narrow channel is investigated numerically. The droplets consist of a viscous inner droplet (core) and shell immersed in a continuous Newtonian fluid. Attention is focused on studying the effects of confinement at different core-to-shell radii ratios, relative viscosities of the medium components, and interfacial tensions on the steady-state deformation and orientation of a composite droplet. The role of the "sustaining" effect due to the internal core and competition between the near-wall shear flow and downward and upward secondary streams is discussed.
authors.affiliation: Semenov Institute of Chemical Physics of Russian Academy of Sciences, 4, Kosygin Street, Moscow, 119991, Russia.
authors.forename: Stanislav
authors.initials: S
authors.lastname: Patlazhan
authors.affiliation: Institute of Problems of Chemical Physics of Russian Academy of Sciences, 1, Semenov Avenue, Chernogolovka, Moscow Region, 142432, Russia.
authors.forename: Sergei
authors.initials: S
authors.lastname: Vagner
authors.affiliation: Institute of Problems of Chemical Physics of Russian Academy of Sciences, 1, Semenov Avenue, Chernogolovka, Moscow Region, 142432, Russia.
authors.forename: Igor
authors.initials: I
authors.lastname: Kravchenko
mesh_terms: D057446:Hydrodynamics; D055595:Mechanical Phenomena; D008962:Models, Theoretical