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Shearing Effects on the Phase Coarsening of Binary Mixtures Using the Active Model B

Author

Listed:
  • Antonio Lamura

    (Istituto Applicazioni Calcolo, CNR, Via Amendola 122/D, 70126 Bari, Italy)

  • Adriano Tiribocchi

    (Istituto per le Applicazioni del Calcolo, CNR, Via dei Taurini 19, 00185 Rome, Italy)

Abstract

The phase separation of a two-dimensional active binary mixture is studied under the action of an applied shear through numerical simulations. It is highlighted how the strength of the external flow modifies the initial shape of growing domains. The activity is responsible for the formation of isolated droplets which affect both the coarsening dynamics and the morphology of the system. The characteristic dimensions of domains along the flow and the shear direction are modulated in time by oscillations whose amplitudes are reduced when the activity increases. This induces a broadening of the distribution functions of domain lengths with respect to the passive case due to the presence of dispersed droplets of different sizes.

Suggested Citation

  • Antonio Lamura & Adriano Tiribocchi, 2021. "Shearing Effects on the Phase Coarsening of Binary Mixtures Using the Active Model B," Mathematics, MDPI, vol. 9(23), pages 1-13, November.
    • Handle: RePEc:gam:jmathe:v:9:y:2021:i:23:p:3008-:d:686424
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    References listed on IDEAS

    as
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    2. Tim Sanchez & Daniel T. N. Chen & Stephen J. DeCamp & Michael Heymann & Zvonimir Dogic, 2012. "Spontaneous motion in hierarchically assembled active matter," Nature, Nature, vol. 491(7424), pages 431-434, November.
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