Insights into the bubble formation dynamics in converging shape microchannels using CLSVOF method-Reference-Cited by-同舟云学术

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

Published:2023-06-29 Issue:0 Volume:0 Page:
ISSN:1934-2659
Container-title:Chemical Product and Process Modeling
language:en
Short-container-title:

Author:

Raize Abdul¹,Kumari Pooja¹,Sontti Somasekhara Goud¹²,Atta Arnab¹^ORCID

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

Link

https://www.degruyter.com/document/doi/10.1515/cppm-2023-0030/pdf

Reference53 articles.

1. Sahu, A, Vir, AB, Molleti, LS, Ramji, S, Pushpavanam, S. Comparison of liquid-liquid extraction in batch systems and micro-channels. Chem Eng Process Process Intensif 2016;104:190–200. https://doi.org/10.1016/j.cep.2016.03.010.

2. Karayiannis, T, Mahmoud, M. Flow boiling in microchannels: fundamentals and applications. Appl Therm Eng 2017;115:1372–97. https://doi.org/10.1016/j.applthermaleng.2016.08.063.

3. Triplett, K, Ghiaasiaan, S, Abdel-Khalik, S, Sadowski, D. Gas-liquid two-phase flow in microchannels part i: two-phase flow patterns. Int J Multiphas Flow 1999;25:377–94. https://doi.org/10.1016/s0301-9322(98)00054-8.

4. Fries, DM, Trachsel, F, von Rohr, PR. Segmented gas–liquid flow characterization in rectangular microchannels. Int J Multiphas Flow 2008;34:1108–18. https://doi.org/10.1016/j.ijmultiphaseflow.2008.07.002.

5. Burns, J, Ramshaw, C. The intensification of rapid reactions in multiphase systems using slug flow in capillaries. Lab Chip 2001;1:10–5. https://doi.org/10.1039/b102818a.