Origin and dynamics of vortex rings in drop splashing
Abstract
A vortex is a flow phenomenon that is very commonly observed in nature. More than a century, a vortex ring that forms during drop splashing has caught the attention of many scientists due to its importance in understanding fluid mixing and mass transport processes. However, the origin of the vortices and their dynamics remain unclear, mostly due to the lack of appropriate visualization methods. Here, with ultrafast X-ray phase-contrast imaging, we show that the formation of vortex rings originates from the energy transfer by capillary waves generated at the moment of the drop impact. Interestingly, we find a row of vortex rings along the drop wall, as demonstrated by a phase diagram established here, with different power-law dependencies of the angular velocities on the Reynolds number. These results provide important insight that allows understanding and modelling any type of vortex rings in nature, beyond just vortex rings during drop splashing.
- Authors:
-
- Pohang Univ. of Science and Technology (Korea). Dept. of Materials Science and Engineering
- Sungkyunkwan Univ., Suwon (Korea). School of Advanced Materials Science and Engineering
- Argonne National Lab. (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Publication Date:
- Research Org.:
- Argonne National Laboratory (ANL), Argonne, IL (United States). Advanced Photon Source (APS)
- Sponsoring Org.:
- USDOE Office of Science (SC)
- OSTI Identifier:
- 1214655
- Grant/Contract Number:
- AC02-06CH11357
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Nature Communications
- Additional Journal Information:
- Journal Volume: 6; Journal ID: ISSN 2041-1723
- Publisher:
- Nature Publishing Group
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
Citation Formats
Lee, Ji San, Park, Su Ji, Lee, Jun Ho, Weon, Byung Mook, Fezzaa, Kamel, and Je, Jung Ho. Origin and dynamics of vortex rings in drop splashing. United States: N. p., 2015.
Web. doi:10.1038/ncomms9187.
Lee, Ji San, Park, Su Ji, Lee, Jun Ho, Weon, Byung Mook, Fezzaa, Kamel, & Je, Jung Ho. Origin and dynamics of vortex rings in drop splashing. United States. https://doi.org/10.1038/ncomms9187
Lee, Ji San, Park, Su Ji, Lee, Jun Ho, Weon, Byung Mook, Fezzaa, Kamel, and Je, Jung Ho. Fri .
"Origin and dynamics of vortex rings in drop splashing". United States. https://doi.org/10.1038/ncomms9187. https://www.osti.gov/servlets/purl/1214655.
@article{osti_1214655,
title = {Origin and dynamics of vortex rings in drop splashing},
author = {Lee, Ji San and Park, Su Ji and Lee, Jun Ho and Weon, Byung Mook and Fezzaa, Kamel and Je, Jung Ho},
abstractNote = {A vortex is a flow phenomenon that is very commonly observed in nature. More than a century, a vortex ring that forms during drop splashing has caught the attention of many scientists due to its importance in understanding fluid mixing and mass transport processes. However, the origin of the vortices and their dynamics remain unclear, mostly due to the lack of appropriate visualization methods. Here, with ultrafast X-ray phase-contrast imaging, we show that the formation of vortex rings originates from the energy transfer by capillary waves generated at the moment of the drop impact. Interestingly, we find a row of vortex rings along the drop wall, as demonstrated by a phase diagram established here, with different power-law dependencies of the angular velocities on the Reynolds number. These results provide important insight that allows understanding and modelling any type of vortex rings in nature, beyond just vortex rings during drop splashing.},
doi = {10.1038/ncomms9187},
journal = {Nature Communications},
number = ,
volume = 6,
place = {United States},
year = {Fri Sep 04 00:00:00 EDT 2015},
month = {Fri Sep 04 00:00:00 EDT 2015}
}
Web of Science
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