Transition of flow field of acoustically levitated droplets with evaporation
Physics of Fluids, ISSN: 1089-7666, Vol: 31, Issue: 10
2019
- 26Citations
- 30Captures
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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.
Citation Benchmarking is provided by Scopus and SciVal and is different from the metrics context provided by PlumX Metrics.
Article Description
We investigated the multidimensional velocity field of acoustically levitated droplets using stereoscopic particle image velocimetry. To clarify the correlation between evaporation behavior and internal and external flows, binary droplets of ethanol and water were used as test fluids. Immediately following droplet levitation, toroidal vortices were generated in the droplet; however, the internal flow transitioned to uniaxial rotational flow as the ethanol component evaporated. In the external flow field, initially, the flow direction was distant from the top and bottom of the droplet with circulating vortices near the droplet surface. As evaporation progressed, the external flow direction transitioned to the opposite direction as the circulation vortices expanded. To investigate the driving force of the uniaxial rotation of the levitated droplet, we simulated the internal flow of the rotating droplet. The simulation and experimental results were in good agreement relative to the order and distribution profile of the flow velocity. Based on these results, we consider the transition mechanism of internal and external flow structures of acoustically levitated droplets with evaporation. Our experimental and simulation results provide deeper physical insights into noncontact fluid manipulation and indicate potential future applications.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85074604293&origin=inward; http://dx.doi.org/10.1063/1.5124499; https://pubs.aip.org/aip/pof/article-lookup/doi/10.1063/1.5124499; http://dx.doi.org/10.1063/1.5124499.1; http://dx.doi.org/10.1063/1.5124499.3; https://pubs.aip.org/pof/article/31/10/102109/1075968/Transition-of-flow-field-of-acoustically-levitated
AIP Publishing
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