Hydrodynamic interactions in active colloidal crystal microrheology

R. Weeber, J.D.R. Harting

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    5 Citations (Scopus)
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    Abstract

    In dense colloids it is commonly assumed that hydrodynamic interactions do not play a role. However, a found theoretical quantification is often missing. We present computer simulations that are motivated by experiments where a large colloidal particle is dragged through a colloidal crystal. To qualify the influence of long-ranged hydrodynamics, we model the setup by conventional Langevin dynamics simulations and by an improved scheme with limited hydrodynamic interactions. This scheme significantly improves our results and allows to show that hydrodynamics strongly impacts on the development of defects, the crystal regeneration as well as on the jamming behavior.
    Original languageEnglish
    Article number057302
    Pages (from-to)1-4
    JournalPhysical Review E - Statistical, Nonlinear, and Soft Matter Physics
    Volume86
    Issue number5
    DOIs
    Publication statusPublished - 2012

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