Mathematical Models and Computer Simulations

, Volume 10, Issue 2, pp 209–217 | Cite as

Boundary Element Modeling of Dynamics of a Bubble in Contact with a Solid Surface at Low Reynolds Numbers

  • Yu. A. Pityuk
  • O. A. Abramova
  • N. A. Gumerov
  • I. Sh. Akhatov
Article
  • 7 Downloads

Abstract

In the present study, the dynamics of a bubble attached to the surface and driven by the acoustic field at low Reynolds numbers are considered. The approach is based on the boundary element method (BEM) for Stokes flows, which is especially effective for the numerical solution of problems in the three-dimensional case. However, the dynamics of computing compressible bubbles are difficult to formulate due to the degeneration of the conventional BEM for Stokes equations. In the present approach, an additional relation based on the Lorenz reciprocity principle is used to resolve the problem. To describe the contact line dynamics a semiempirical law of motion is used. Such an approach allows us to bypass the known issue of nonintegrability stresses in the moving triple point. The behavior of a bubble attached to the surface in the cases of a pinned or moving contact line is studied. The developed method can be used for the detailed study of bubble dynamics in contact with a solid wall in order to determine the optimal conditions and parameters of surface cleaning processes.

Keywords

bubble dynamics solid surface contact angle boundary element method Stokes flow 

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  • Yu. A. Pityuk
    • 1
  • O. A. Abramova
    • 1
  • N. A. Gumerov
    • 1
    • 2
  • I. Sh. Akhatov
    • 3
  1. 1.Center for Micro and Nanoscale Dynamics of Dispersed SystemsBashkir State UniversityUfaRussia
  2. 2.Institute of Advanced Computer StudyUniversity of MarylandCollege ParkUSA
  3. 3.Center for Design, Manufacturing & MaterialsSkolkovo Institute of Science & Engineering (Skoltech)MoscowRussia

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