Viscous dissipation and dynamics of defects in an active nematic interface

  • Len M. PismenEmail author
  • Francesc Sagués
Regular Article
Part of the following topical collections:
  1. Non-equilibrium processes in multicomponent and multiphase media


We consider active flow and dynamics of topological defects in an active nematic interfacial layer confined between immissible viscous fluid layers. The velocity of defects is determined by asymptotic matching of solutions in the defect core and the far field. Self-propulsion of positive defects along the direction of their “comet tails” is identified as the principal deterministic component of defect dynamics, while topological and hydrodynamic interactions among mobile defects is responsible for quasi-random jitter.

Graphical abstract


Topical issue: Non-equilibrium processes in multicomponent and multiphase media 


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Copyright information

© EDP Sciences, SIF, Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  1. 1.Department of Chemical EngineeringTechnion - Israel Institute of TechnologyHaifaIsrael
  2. 2.Departament of Materials Science and Physical Chemistry, Institut de Nanociència i NanotecnologiaUniversitat de BarcelonaBarcelonaSpain

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