Experimental Study on Carbon Dioxide Bubble Dynamics at the Interface of Layered Liquids with Different Viscosities

• Published in: Fluid dynamics 2022-12, Vol.57 (9), p.1080-1095
• Main Authors: Yang, J. X., Gao, D., Xu, W. H., Zhang, H.
• Format: Article
• Language: English
• Subjects: Bubbles; Carbon dioxide; Carboxymethyl cellulose; Cellulose; Chemical industry; Classical and Continuum Physics; Classical Mechanics; Deionization; Dynamic characteristics; Engineering Fluid Dynamics; Fluid- and Aerodynamics; Herbicides; High speed cameras; Liquid levels; Metallurgical analysis; Nuclear facilities; Nuclear reactors; Pesticides industry; Physics; Physics and Astronomy; Residence time distribution; Sodium carboxymethyl cellulose; Transit time; Viscosity
• ISSN: 0015-4628; 1573-8507
• DOI: 10.1134/S0015462822600663

The dynamic characteristics of carbon dioxide bubbles passing through the interface of layered liquid have a far-reaching impact on capture, storage and utilization, metallurgical chemical industry and nuclear reactor operation. In order to study the dynamics of carbon dioxide bubbles on the layered liquid interface of deionized water and oil with different viscosities based on the visual-experimental platform, the carbon dioxide bubbles produced by the nozzle were experimentally studied under the layered liquid level of deionized water and oil with different viscosities, the movement results of carbon dioxide bubbles were photographed and analyzed using a high-speed camera. The initial maximum diameter of a carbon dioxide bubble, the passing diameter of a carbon dioxide bubble, the residence time of a carbon dioxide bubble on the interface, the wake length, and the shedding time were studied experimentally, and the critical diameter number, Eotvos–Galileo image and the length diameter ratio were analyzed. The results show that the critical diameter number of the initial maximum diameter and the passing diameter is greater than 10, and is located in the I and III regions of the Eotvos–Galileo image. The initial maximum diameter when the viscosity of sodium carboxymethyl cellulose solution is equal to 100 mPa s, the passing diameter, the wake length, and the length diameter ratio have a M-shaped distribution as a whole, and the initial maximum diameter when the viscosity of sodium carboxymethyl cellulose solution is small has a W-shaped distribution. The residence time and the transit time increase with increase in the viscosity.