Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence
© The Author(s) 2019. We consider the size spectrum of entrained bubbles under strong free-surface turbulence (SFST). We investigate the entrainment bubble-size spectrum per unit (mean) interface area, , with dimension length, and develop a physical/mechanistic model for through energy arguments. Th...
| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
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Cambridge University Press (CUP)
2021
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| Online Access: | https://hdl.handle.net/1721.1/136590 |
| _version_ | 1811083305884319744 |
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| author | Yu, Xiangming Hendrickson, Kelli Yue, Dick KP |
| author2 | Massachusetts Institute of Technology. Department of Mechanical Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Mechanical Engineering Yu, Xiangming Hendrickson, Kelli Yue, Dick KP |
| author_sort | Yu, Xiangming |
| collection | MIT |
| description | © The Author(s) 2019. We consider the size spectrum of entrained bubbles under strong free-surface turbulence (SFST). We investigate the entrainment bubble-size spectrum per unit (mean) interface area, , with dimension length, and develop a physical/mechanistic model for through energy arguments. The model obtains two distinct regimes of , separated by bubble-size scale. For bubble radius r-{0}]>, the effects of gravity dominate those of the surface tension force , and , where is the turbulence dissipation rate. For and <![CDATA[r; the value ; the scaling ; and the predictions of the-entrainment regime map. |
| first_indexed | 2024-09-23T12:30:57Z |
| format | Article |
| id | mit-1721.1/136590 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:30:57Z |
| publishDate | 2021 |
| publisher | Cambridge University Press (CUP) |
| record_format | dspace |
| spelling | mit-1721.1/1365902023-02-22T17:28:53Z Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence Yu, Xiangming Hendrickson, Kelli Yue, Dick KP Massachusetts Institute of Technology. Department of Mechanical Engineering © The Author(s) 2019. We consider the size spectrum of entrained bubbles under strong free-surface turbulence (SFST). We investigate the entrainment bubble-size spectrum per unit (mean) interface area, , with dimension length, and develop a physical/mechanistic model for through energy arguments. The model obtains two distinct regimes of , separated by bubble-size scale. For bubble radius r-{0}]>, the effects of gravity dominate those of the surface tension force , and , where is the turbulence dissipation rate. For and <![CDATA[r; the value ; the scaling ; and the predictions of the-entrainment regime map. 2021-10-27T20:36:08Z 2021-10-27T20:36:08Z 2020 2020-08-14T15:17:26Z Article http://purl.org/eprint/type/JournalArticle https://hdl.handle.net/1721.1/136590 en 10.1017/JFM.2019.986 Journal of Fluid Mechanics Creative Commons Attribution 4.0 International license https://creativecommons.org/licenses/by/4.0/ application/pdf Cambridge University Press (CUP) Cambridge University Press |
| spellingShingle | Yu, Xiangming Hendrickson, Kelli Yue, Dick KP Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title | Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title_full | Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title_fullStr | Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title_full_unstemmed | Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title_short | Scale separation and dependence of entrainment bubble-size distribution in free-surface turbulence |
| title_sort | scale separation and dependence of entrainment bubble size distribution in free surface turbulence |
| url | https://hdl.handle.net/1721.1/136590 |
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