Abstract
An experimental and numerical approach for studying the bubble deformation on the surface in the shear flow of viscous liquid is developed. The numerical approach is based on the boundary element method for the Stokes flows. The methods of optical microscopy and high-speed recording are applied for the experimental investigation of the bubble deformation. The dynamics of the variation in the receding and advancing contact angles is studied in dependence on the intensity of the shear flow of viscous liquid. A qualitative and quantitative agreement between the numerical modeling and experimental results for various capillary numbers is obtained.
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Funding
This work was supported by the Russian Foundation for Basic Research, project no. 18-38-20102.
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Translated by E. Oborin
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Pityuk, Y.A., Sametov, S.P., Mullayanov, A.I. et al. A Numerical and Experimental Study of Bubble Deformation on the Surface in a Shear Flow of Viscous Liquid. Tech. Phys. Lett. 45, 1194–1196 (2019). https://doi.org/10.1134/S1063785019120125
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DOI: https://doi.org/10.1134/S1063785019120125