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Particle trapping in merging flow junctions by fluid-solute-colloid-boundary interactions
https://oist.repo.nii.ac.jp/records/1494
https://oist.repo.nii.ac.jp/records/14944ea6abb3-42d6-482e-9f22-9232a051a1d6
名前 / ファイル | ライセンス | アクション |
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Shin-2020-Particle trapping in merging flow ju (2.8 MB)
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Creative Commons Attribution 4.0 International(https://creativecommons.org/licenses/by/4.0/)
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Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2020-05-14 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Particle trapping in merging flow junctions by fluid-solute-colloid-boundary interactions | |||||
言語 | ||||||
言語 | eng | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | journal article | |||||
著者(英) |
Shin, Sangwoo
× Shin, Sangwoo× Ault, Jesse T.× Toda-Peters, Kazumi× Shen, Amy Q. |
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書誌情報 |
en : Physical Review Fluids 巻 5, 号 2, p. /024304, 発行日 2020-02-27 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | Merging of different streams in channel junctions represents a common mixing process that occurs in systems ranging from soda fountains and bathtub faucets to chemical plants and microfluidic devices. Here, we report a spontaneous trapping of colloidal particles in a merging flow junction when the merging streams have a salinity contrast. We show that the particle trapping is a consequence of nonequilibrium interactions between the particles, solutes, channel, and the freestream flow. A delicate balance of transport processes results in a stable near-wall vortex that traps the particles. We use three-dimensional particle visualization and numerical simulations to provide a rigorous understanding of the observed phenomenon. Such a trapping mechanism is unique from the well-known inertial trapping enabled by vortex breakdown [Proc. Natl. Acad. Sci. USA 111, 4770 (2014)], or the solute-mediated trapping enabled by diffusiophoresis [Phys..Rev. X 7, 041038 (2017)], as the current trapping is facilitated by both the solute and the inertial effects, suggesting a new mechanism for particle trapping in flow networks. | |||||
出版者 | ||||||
出版者 | American Physical Society | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 2469-990X | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1103/PhysRevFluids.5.024304 | |||||
情報源 | ||||||
関連名称 | https://creativecommons.org/licenses/by/4.0/ | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://journals.aps.org/prfluids/abstract/10.1103/PhysRevFluids.5.024304 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 |