Turbulent droplet breakage in a von Kármán flow cell
Physics of Fluids, ISSN: 1089-7666, Vol: 34, Issue: 7
2022
- 8Citations
- 8Captures
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Example: if you select the 1-year option for an article published in 2019 and a metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019. If you select the 3-year option for the same article published in 2019 and the metric category shows 90%, that means that the article or review is performing better than 90% of the other articles/reviews published in that journal in 2019, 2018 and 2017.
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Article Description
Droplet dispersion in liquid-liquid systems is a crucial step in many unit operations throughout the chemical, food, and pharmaceutic industries, where improper operation causes billions of dollars of loss annually. A theoretical background for the description of droplet breakup has been established, but many assumptions are still unconfirmed by experimental observations. In this investigation, a von Kármán swirling flow device was used to produce homogeneous, low-intensity turbulence suitable for carrying out droplet breakage experiments using optical image analysis. Individual droplets of known, adjustable, and repeatable sizes were introduced into an isotropic turbulent flow field providing novel control over two of the most important factors impacting droplet breakage: turbulence dissipation rate and parent droplet size. Introducing droplets one at a time, large data sets were gathered using canola, safflower, and sesame oils for the droplet phase and water as the continuous phase. Automated image analysis was used to determine breakage time, breakage probability, and child droplet size distribution for various turbulence intensities. Breakage time and breakage probability were observed to increase with increasing parent droplet size, consistent with the classic and widely used Coulaloglou-Tavlarides breakage model (C-T model). The shape of the child drop size distribution function was found to depend upon the size of the parent droplet.
Bibliographic Details
10.1063/5.0096395; 10.1063/5.0096395.3; 10.1063/5.0096395.1; 10.1063/5.0096395.2; 10.1063/5.0096395.6; 10.1063/5.0096395.4; 10.1063/5.0096395.5
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85134888367&origin=inward; http://dx.doi.org/10.1063/5.0096395; https://pubs.aip.org/aip/pof/article-lookup/doi/10.1063/5.0096395; http://dx.doi.org/10.1063/5.0096395.3; http://dx.doi.org/10.1063/5.0096395.1; http://dx.doi.org/10.1063/5.0096395.2; http://dx.doi.org/10.1063/5.0096395.6; http://dx.doi.org/10.1063/5.0096395.4; https://pubs.aip.org/pof/article/34/7/073319/2846951/Turbulent-droplet-breakage-in-a-von-Karman-flow; http://dx.doi.org/10.1063/5.0096395.5
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