Nonlinear hydrodynamic phenomena in Stokes flow regime

J. Blawzdziewicz, R. H. Goodman, N. Khurana, E. Wajnryb, Y. N. Young

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

We investigate nonlinear phenomena in dispersed two-phase systems under creeping-flow conditions. We consider nonlinear evolution of a single deformed drop and collective dynamics of arrays of hydrodynamically coupled particles. To explore physical mechanisms of system instabilities, chaotic drop evolution, and structural transitions in particle arrays we use simple models, such as small-deformation equations and effective-medium theory. We find numerical and analytical solutions of the simplified governing equations. The small-deformation equations for drop dynamics are analyzed using results of dynamical systems theory. Our investigations shed new light on the dynamics of complex fluids, where the nonlinearity often stems from the evolving boundary conditions in Stokes flow.

Original languageEnglish
Pages (from-to)1214-1224
Number of pages11
JournalPhysica D: Nonlinear Phenomena
Volume239
Issue number14
DOIs
StatePublished - Aug 15 2010

Keywords

  • Chaos
  • Collective dynamics
  • Drops
  • Stokes flow
  • Structural transitions
  • Suspensions

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