Structure formation of surfactant membranes under shear flow

We study the detailed structural evolution of surfactant membranes under simple shear flow using large-scale particle simulations

Hayato Shiba

2013

Scholarcy highlights

  • Surfactant molecules in water self-assemble into various structures such as micelles and bilayer membranes, which display a rich variety of rheological properties under flow
  • A critical shear rate γc separates the lamellae and onion phases, where the latter phase consists of monodisperse onions containing hundreds of lamellar layers
  • For an initial lamellar state, the final configuration of a simulation run with 1.2 × 107 molecular dynamics steps at a small shear rate γτ = 0.0284), is employed
  • For the case of a random initial distribution, small disks merge into randomly oriented surfaces, which align in the shear flow to become a nearly perfect lamellar stack with some defects
  • We study the explicit-solvent meshlesszy x membrane model for higher number density

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