Effect of bubble volume on the sweeping velocity of air bubbles in horizontal pipelines in water supply system

Frontiers in Earth Science

Earth Science

Hongge Song¹  Zhenzhu Meng²  Jinxin Zhang²  Chengzhi Yang³  Jianyong Hu⁴  Yuzhou Zhang⁴  Miao Lu⁴ 

[1] College of Energy and Power Engineering, North China University of Water Resources and Hydropower, Zhengzhou, China;Engineering Research Center of Digital Twin Basin of Zhejiang Province, Hangzhou, China;School of Water Conservancy and Environmental Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, China;Henan Water and Power Engineering Consulting Co., Ltd., Zhengzhou, China;School of Geomatics and Municipal Engineering, Zhejiang University of Water Resources and Electric Power, Hangzhou, China;Engineering Research Center of Digital Twin Basin of Zhejiang Province, Hangzhou, China;

关键词: bubble volume;    pipe diameter;    force analysis;    horizontal pipeline;    air bubbles;    water supply system;    sweeping velocity;   

DOI  :  10.3389/feart.2023.1214713

 received in 2023-04-30, accepted in 2023-05-22,  发布年份 2023

来源: Frontiers

【 摘 要 】

Trapped air bubbles in pipelines significantly affect the safety and efficiency of water supply systems, potentially inducing water hammer and leading to pipeline explosions and interruptions. This study investigates the sweeping velocity of air bubbles in horizontal pipelines by analyzing the forces acting on a single air bubble and deriving a theoretical expression for calculating the sweeping velocity. Physical model experiments and numerical simulations are conducted to examine the variations in sweeping velocity with respect to bubble volume and dimensionless bubble volume. Results indicate that the sweeping velocity increases with bubble volume, and the diameter of the pipeline significantly affects the movement of air bubbles. These findings contribute to a better understanding of air bubble behavior in horizontal pipelines and can inform strategies for mitigating risks associated with trapped air bubbles, ultimately improving the safety and reliability of water supply systems.

【 授权许可】

Unknown   
Copyright © 2023 Hu, Yang, Zhang, Song, Lu, Meng and Zhang.