Capillary driven fragmentation of large gas bubbles in turbulence
<p>The bubble size distribution below a breaking wave is of paramount interest when quantifying mass exchanges between the atmosphere and oceans. Mass fluxes at the interface are driven by bubbles that are small compared with the Hinze scale <em><span tabindex="0"&g...
| Main Authors: | , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
American Physical Society
2022
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| _version_ | 1797109219576512512 |
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| author | Riviere, A Ruth, DJ Mostert, W Deike, L Perrard, S |
| author_facet | Riviere, A Ruth, DJ Mostert, W Deike, L Perrard, S |
| author_sort | Riviere, A |
| collection | OXFORD |
| description | <p>The bubble size distribution below a breaking wave is of paramount interest when quantifying mass exchanges between the atmosphere and oceans. Mass fluxes at the interface are driven by bubbles that are small compared with the Hinze scale <em><span tabindex="0">d<sub>h</sub></span></em>, the critical size below which bubbles are stable, even though individually these are negligible in volume. Combining experimental and numerical approaches, we report a power-law scaling <span tabindex="0"><em>d</em><sup>−3/2</sup></span> for the small bubble size distribution, for sufficiently large separation of scales between the injection size and the Hinze scale. From an analysis of individual bubble breakups, we show that small bubbles are generated by capillary effects, and that their breakup time scales as <span tabindex="0"><em>d</em><sup>3/2</sup></span>, which physically explains the sub-Hinze scaling observed.</p> |
| first_indexed | 2024-03-07T07:37:22Z |
| format | Journal article |
| id | oxford-uuid:0cd130c9-b41b-4ecb-a778-76f60877313c |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-07T07:37:22Z |
| publishDate | 2022 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | oxford-uuid:0cd130c9-b41b-4ecb-a778-76f60877313c2023-03-31T11:03:31ZCapillary driven fragmentation of large gas bubbles in turbulenceJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:0cd130c9-b41b-4ecb-a778-76f60877313cEnglishSymplectic ElementsAmerican Physical Society2022Riviere, ARuth, DJMostert, WDeike, LPerrard, S<p>The bubble size distribution below a breaking wave is of paramount interest when quantifying mass exchanges between the atmosphere and oceans. Mass fluxes at the interface are driven by bubbles that are small compared with the Hinze scale <em><span tabindex="0">d<sub>h</sub></span></em>, the critical size below which bubbles are stable, even though individually these are negligible in volume. Combining experimental and numerical approaches, we report a power-law scaling <span tabindex="0"><em>d</em><sup>−3/2</sup></span> for the small bubble size distribution, for sufficiently large separation of scales between the injection size and the Hinze scale. From an analysis of individual bubble breakups, we show that small bubbles are generated by capillary effects, and that their breakup time scales as <span tabindex="0"><em>d</em><sup>3/2</sup></span>, which physically explains the sub-Hinze scaling observed.</p> |
| spellingShingle | Riviere, A Ruth, DJ Mostert, W Deike, L Perrard, S Capillary driven fragmentation of large gas bubbles in turbulence |
| title | Capillary driven fragmentation of large gas bubbles in turbulence |
| title_full | Capillary driven fragmentation of large gas bubbles in turbulence |
| title_fullStr | Capillary driven fragmentation of large gas bubbles in turbulence |
| title_full_unstemmed | Capillary driven fragmentation of large gas bubbles in turbulence |
| title_short | Capillary driven fragmentation of large gas bubbles in turbulence |
| title_sort | capillary driven fragmentation of large gas bubbles in turbulence |
| work_keys_str_mv | AT rivierea capillarydrivenfragmentationoflargegasbubblesinturbulence AT ruthdj capillarydrivenfragmentationoflargegasbubblesinturbulence AT mostertw capillarydrivenfragmentationoflargegasbubblesinturbulence AT deikel capillarydrivenfragmentationoflargegasbubblesinturbulence AT perrards capillarydrivenfragmentationoflargegasbubblesinturbulence |