Numerical analysis of deformation and breakup of a compound droplet in microchannels

Nguyen, Cuong T.; Vu, Hung V.; Vu, Truong V.; Truong, Thuan V.; Ho, Nang X.; Pham, Binh D.; Nguyen, Hoe D.; Nguyen, Vinh T.

doi:10.1016/j.euromechflu.2021.03.005

Cited by 16 publications

(1 citation statement)

References 27 publications

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“…Most of the research models of droplet movement behavior are established on the assumption that the fluid domain is unbounded, and researchers ignore the wall effect when the droplet diameter to container diameter ratio c is less than 0.12. However, in most practical industrial processes, droplet movement is limited by the wall surface, such as oil droplet harvesting in porous rock [93], microfluidic field [94], etc. The influence of the wall surface on droplet shape changes and drag force increases, which eventually reduces droplet terminal velocity.…”

Section: Viscoelastic Non-newtonian Fluidsmentioning

confidence: 99%

Droplet Shape and Drag Coefficients in Non‐Newtonian Fluids: A Review

Sun

2023

ChemBioEng Reviews

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The motion of droplets in non‐Newtonian fluids is widely present in ubiquitous industrial processes. Understanding the droplet motion characteristics is important for optimizing the design of related processes. Here the progress in the research on the droplet motion characteristics in non‐Newtonian fluids is reviewed. The mechanism of droplet deformation in non‐Newtonian fluids were elucidated, the influence of different rheological properties on droplet shape was discussed, and the empirical correlations of droplet aspect ratio were summarized. Moreover, the dimensionless correlations of drag coefficient were discussed. There are relatively few drag coefficient correlations of droplets in non‐Newtonian fluids, while the correlation of drag coefficients of bubbles in non‐Newtonian fluids can provide some reference. Finally, the possible prospects for future studies of the subject were proposed.

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Section: Viscoelastic Non-newtonian Fluidsmentioning

confidence: 99%