Numerical study of droplet breakup in an asymmetric T-junction microchannel with different cross-section ratios

Milad Isanejad and Keivan Fallah
Additional contact information
Milad Isanejad: Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran
Keivan Fallah: Department of Mechanical Engineering, Sari Branch, Islamic Azad University, Sari, Iran

International Journal of Theoretical and Applied Finance (IJTAF), 2022, vol. 33, issue 02, 1-16

Abstract: In this study, numerical simulations are conducted to investigate droplet breakup in an asymmetric T-junction microchannel with different cross-section ratios. To this approach, a two-phase model based on the volume of fluid (VOF) method is adopted to study the three-dimensional feature of droplet motion inside T-junctions. The comparison reveals that the present results are in good agreement with previous studies. The effects of the capillary number (Ca), the non-dimensional droplet length (L∗), and the non-dimensional width ratio (W∗) on the breakup time and splitting ratio of daughter droplets are studied. Five distinct regimes are observed involving the non-breakup, breakup with tunnel, breakup without tunnel, asymmetric breakup, and sorting. Achieved results indicate that the time of breakup (tbreakup∗) increases about 15% when the Ca is increased from 0.0134 to 0.0268 (about 100%). It is also found that the mass center of the mother droplet in the primary channel is shifted to a larger wide branch, which facilitates the asymmetric breakup of the droplet in a T-junction microchannel.

Keywords: Two-phase flow; asymmetric T-junction; microchannel; droplet breakup (search for similar items in EconPapers)
Date: 2022
References: Add references at CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0129183122500231
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijtafx:v:25:y:2022:i:01:n:s0129183122500231

Ordering information: This journal article can be ordered from

DOI: 10.1142/S0129183122500231

Access Statistics for this article

International Journal of Theoretical and Applied Finance (IJTAF) is currently edited by L P Hughston

More articles in International Journal of Theoretical and Applied Finance (IJTAF) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().