Insights into the bubble formation dynamics in converging shape microchannels using CLSVOF method

Author:

Raize Abdul1,Kumari Pooja1,Sontti Somasekhara Goud12,Atta Arnab1ORCID

Affiliation:

1. Multiscale Computational Fluid Dynamics (mCFD) Laboratory, Department of Chemical Engineering , Indian Institute of Technology Kharagpur , Kharagpur , West Bengal 721302 , India

2. Department of Chemical Engineering , Indian Institute of Technology Dharwad , Dharwad , 580011 , Karnataka , India

Abstract

Abstract Bubble formation in a square microchannel having a converging shape merging junction has been studied using the Coupled Level-Set and Volume-of-Fluid (CLSVOF) method. The influence of variations in merging junction angles, fluid properties, and operating conditions on the bubble length and pressure drop has been analyzed. The results show a direct relationship between surface tension, gas-liquid flow ratio, and the inverse relation of continuous phase viscosity with the bubble length. Moreover, opposite variations of these parameters are observed for pressure drop. This work reveals a discerning influence of the angle variations of merging junction on the interplay between inertial, viscous, and surface tension forces in the bubble formation mechanism. We envisage that this numerical work will be of significant interest for the process intensification in various industries that deal with gas-liquid microfluidic systems.

Publisher

Walter de Gruyter GmbH

Subject

Modeling and Simulation,General Chemical Engineering

Cited by 1 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. CPPM special issue in honor of Professor Faïçal Larachi;Chemical Product and Process Modeling;2024-04-01

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