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.

中文翻译：

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粘性液体剪切流中表面气泡变形的数值和实验研究

摘要

提出了一种研究粘性液体剪切流中表面气泡变形的实验和数值方法。数值方法基于斯托克斯流的边界元方法。光学显微镜和高速记录的方法被用于气泡变形的实验研究。取决于粘性液体的剪切流强度，研究了后退和前进接触角变化的动力学。获得了各种毛细管数的数值模型和实验结果之间的定性和定量一致性。