Experimental and Theoretical Investigation of the Effect of Dissolved Surfactant on the Dynamics of Gas Bubble Floating-up

IF 1 4区工程技术 Q4 MECHANICS

Fluid Dynamics Pub Date : 2024-11-07 DOI:10.1134/S0015462824603073

E. I. Borzenko, A. S. Usanin, G. R. Shrager

引用次数: 0

Abstract

We present the results of an experimental and numerical investigation of the floating-up of a solitary gas bubble in the presence and absence of dissolved surfactant at Reynolds numbers Re > 1. An original numerical technique is proposed, which makes it possible to investigate the dynamics of a solitary bubble with account for the effects occurring when a surfactant is introduced into the fluid. The effect of the surfactant concentration on the bubble dimensions, shape, and rise velocity are analyzed. Three stages of the bubble rise in the presence of a surfactant are established; they characterize its accumulation and distribution over the free surface of the bubble.

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溶解表面活性剂对气泡上浮动力学影响的实验和理论研究

我们介绍了在雷诺数为 Re > 1 时，有表面活性剂存在和没有表面活性剂存在时孤气泡上浮的实验和数值研究结果。我们提出了一种独创的数值技术，该技术使研究孤气泡的动力学成为可能，并考虑了在流体中引入表面活性剂时产生的影响。分析了表面活性剂浓度对气泡尺寸、形状和上升速度的影响。确定了表面活性剂存在时气泡上升的三个阶段；它们描述了表面活性剂在气泡自由表面的积累和分布。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Fluid Dynamics MECHANICS-PHYSICS, FLUIDS & PLASMAS

CiteScore

1.30

自引率

22.20%

发文量

审稿时长

6-12 weeks

期刊介绍： Fluid Dynamics is an international peer reviewed journal that publishes theoretical, computational, and experimental research on aeromechanics, hydrodynamics, plasma dynamics, underground hydrodynamics, and biomechanics of continuous media. Special attention is given to new trends developing at the leading edge of science, such as theory and application of multi-phase flows, chemically reactive flows, liquid and gas flows in electromagnetic fields, new hydrodynamical methods of increasing oil output, new approaches to the description of turbulent flows, etc.