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Effect of a surface tension imbalance on a partly submerged cylinder
https://oist.repo.nii.ac.jp/records/354
https://oist.repo.nii.ac.jp/records/354c1edb42a-8c3e-4487-95f7-505f3572fa72
名前 / ファイル | ライセンス | アクション |
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effect_of_a_surface_tension_imbalance_on_a_par (7.7 MB)
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Creative Commons Attribution 4.0 International
(http://creativecommons.org/licenses/by/4.0/) |
Item type | 学術雑誌論文 / Journal Article(1) | |||||
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公開日 | 2018-04-06 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Effect of a surface tension imbalance on a partly submerged cylinder | |||||
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) |
Janssens, Stoffel D.
× Janssens, Stoffel D.× Chaurasia, Vikash× Fried, Eliot |
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書誌情報 |
en : Journal of Fluid Mechanics 巻 830, p. 369-386, 発行日 2017-09-29 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We perform a static analysis of a circular cylinder that forms a barrier between surfactant-laden and surfactant-free portions of a liquid–gas interface. In addition to determining the general implications of the balances for forces and torques, we quantify how the imbalance ∆γ=γ_α-γ_b between the uniform surface tension γ_a of the surfactant-free portion of the interface and the uniform surface tension γ_b of the surfactant-laden portion of the interface influences the load-bearing capacity of a hydrophobic cylinder. Moreover, we demonstrate that the difference between surface tensions on either side of a cylinder with a cross-section of arbitrary shape induces a horizontal force component f^h equal to ∆γ in magnitude, when measured per unit length of the cylinder. With an energetic argument, we show that this relation also applies to a rod like barrier with cross-sections of variable shape. In addition, we apply our analysis to amphiphilic Janus cylinders and we discuss practical implications of our findings for Marangoni propulsion and surface pressure measurements. | |||||
出版者 | ||||||
出版者 | Cambridge University Press | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0022-1120 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1017/jfm.2017.537 | |||||
権利 | ||||||
権利情報 | © 2017 Cambridge University Press. | |||||
関連サイト | ||||||
識別子タイプ | DOI | |||||
関連識別子 | https://doi.org/10.1017/jfm.2017.537 | |||||
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 |