Mesoscopic Simulations of Active-Nematics

Timofey Kozhukhov, Tyler N. Shendruk*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

Abstract / Description of output

Coarse-grained, mesoscale simulations are invaluable for studying soft condensed matter because of their ability to model systems in which a background solvent plays a significant role but is not the primary interest. Such methods generally model passive solvents; however, far-from-equilibrium systems may also be composed of complex solutes suspended in an active fluid. Yet, few coarse-grained simulation methods exist to model an active medium. We introduce an algorithm to simulate active nematics, which builds on multi-particle collision dynamics (MPCD) for passive fluctuating nematohydrodynamics by introducing dipolar activity in the local collision operator. Active-nematic MPCD (AN-MPCD) simulations exhibit the key characteristics of active nematic turbulence but, as a particle-based algorithm, also reproduce crucial attributes of active particle models. Thus, mesoscopic AN-MPCD is an approach that bridges microscopic and continuum descriptions, allowing novel simulations of composite active-passive systems.
Original languageEnglish
Article numbereabo5788
Pages (from-to)1-10
Number of pages10
JournalScience Advances
Issue number34
Publication statusPublished - 24 Aug 2022

Keywords / Materials (for Non-textual outputs)

  • cond-mat.soft
  • physics.comp-ph
  • physics.flu-dyn


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