The European Physical Journal Special Topics

, Volume 171, Issue 1, pp 223–228 | Cite as

Capillary filling for multicomponent fluid using the pseudo-potential Lattice Boltzmann method

  • S. Chibbaro
  • L. Biferale
  • F. Diotallevi
  • S. Succi


We present a systematic study of capillary filling for a binary fluid by using mesoscopic a lattice Boltzmann model describing a diffusive interface moving at a given contact angle with respect to the walls. We compare the numerical results at changing the ratio the typical size of the capillary, H, and the wettability of walls. Numerical results yield quantitative agreement with the theoretical Washburn law, provided that the channel height is sufficiently larger than the interface width and variations of the dynamic contact angle with the capillary number are taken into account.


Contact Angle European Physical Journal Special Topic Capillary Number Channel Height Static Contact Angle 
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Copyright information

© EDP Sciences and Springer 2009

Authors and Affiliations

  • S. Chibbaro
    • 1
  • L. Biferale
    • 2
  • F. Diotallevi
    • 1
  • S. Succi
    • 1
  1. 1.Istituto per le Applicazioni del Calcolo CNR, Viale del Policlinico 137RomaItaly
  2. 2.Department of Physics and INFNUniversity of Tor VergataRomaItaly

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