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Modulation of homogeneous and isotropic turbulence in emulsions
https://oist.repo.nii.ac.jp/records/2629
https://oist.repo.nii.ac.jp/records/2629d2e68a2d-fefe-4663-bdb9-dffedb2adfcf
名前 / ファイル | ライセンス | アクション |
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Crialesi-Esposi-2022-Modulation of homogeneous (1.5 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 | 2022-04-26 | |||||
タイトル | ||||||
言語 | en | |||||
タイトル | Modulation of homogeneous and isotropic turbulence in emulsions | |||||
言語 | ||||||
言語 | eng | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | multiphase flow | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | isotropic turbulence | |||||
キーワード | ||||||
言語 | en | |||||
主題Scheme | Other | |||||
主題 | emulsions | |||||
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) |
Crialesi-Esposito, Marco
× Crialesi-Esposito, Marco× Rosti, Marco Edoardo× Chibbaro, Sergio× Brandt, Luca |
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書誌情報 |
en : Journal of Fluid Mechanics 巻 940, p. A19, 発行日 2022-04-08 |
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抄録 | ||||||
内容記述タイプ | Other | |||||
内容記述 | We present a numerical study of emulsions in homogeneous and isotropic turbulence (HIT) at Reλ=137. The problem is addressed via direct numerical simulations, where the volume of fluid is used to represent the complex features of the liquid–liquid interface. We consider a mixture of two iso-density fluids, where fluid properties are varied with the goal of understanding their role in turbulence modulation, in particular the volume fraction (0.03<α<0.5), viscosity ratio (0.01<μd/μc<100) and large-scale Weber number (10.6<WeL<106.5). The analysis, performed by studying integral quantities and spectral scale-by-scale analysis, reveals that energy is transported consistently from large to small scales by the interface, and no inverse cascade is observed. Furthermore, the total surface is found to be directly proportional to the amount of energy transported, while viscosity and surface tension alter the dynamic that regulates energy transport. We also observe the −10/3 and −3/2 scaling on droplet size distributions, suggesting that the dimensional arguments that led to their derivation are verified in HIT conditions. | |||||
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 | |||||
ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 1469-7645 | |||||
DOI | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | DOI | |||||
関連識別子 | info:doi/10.1017/jfm.2022.179 | |||||
権利 | ||||||
権利情報 | © The Author(s), 2022. | |||||
関連サイト | ||||||
識別子タイプ | URI | |||||
関連識別子 | https://www.cambridge.org/core/journals/journal-of-fluid-mechanics/article/modulation-of-homogeneous-and-isotropic-turbulence-in-emulsions/FB9F7877F8802EF9A931BD320CFF1B81 | |||||
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 |