Open AccessЧисленно-экспериментальное исследование деформации пузырька на поверхности в сдвиговом потоке вязкой жидкости
Author(s) -
Ю.А. Питюк,
С.П. Саметов,
А.И. Муллаянов,
Olga Abramova
Publication year - 2019
Publication title -
pisʹma v žurnal tehničeskoj fiziki
Language(s) - English
Resource type - Journals
eISSN - 1726-7471
pISSN - 0320-0116
DOI - 10.21883/pjtf.2019.23.48715.18000
Subject(s) - bubble , mechanics , capillary action , stokes flow , shear flow , materials science , deformation (meteorology) , dynamics (music) , numerical analysis , viscous liquid , computer simulation , flow (mathematics) , boundary element method , viscous flow , capillary number , work (physics) , liquid flow , finite element method , physics , mathematics , thermodynamics , composite material , acoustics , mathematical analysis
The aim of the work is to develop an experimental and numerical approach to study the deformation of a surface attached bubble in shear flow of a viscous liquid. The numerical method is based on the boundary element method for Stokes flow. For the experimental study of bubble dynamics, the optical microscopy and high-speed recording are used. We studied the dynamics of the receding and advancing contact angles depending on the intensity of the shear flow of a viscous liquid. We obtained a qualitative and quantitative agreement between the results of numerical simulation and experiment for various capillary numbers.