The violent collapse of vapor bubbles in cryogenic liquids
Vapor bubbles in cryogenic fluids may collapse violently under subcooled and pressurized conditions. Despite important implications for engineering applications such as cavitation erosion in liquid propellant rocket engines, these intense phenomena are still largely unexplored. In this paper, we sys...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-03-01
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| Series: | Ultrasonics Sonochemistry |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S1350417724000932 |
| _version_ | 1797244992918388736 |
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| author | Kewen Peng Shouceng Tian Yiqun Zhang Jingbin Li Wanjun Qu Chao Li |
| author_facet | Kewen Peng Shouceng Tian Yiqun Zhang Jingbin Li Wanjun Qu Chao Li |
| author_sort | Kewen Peng |
| collection | DOAJ |
| description | Vapor bubbles in cryogenic fluids may collapse violently under subcooled and pressurized conditions. Despite important implications for engineering applications such as cavitation erosion in liquid propellant rocket engines, these intense phenomena are still largely unexplored. In this paper, we systematically investigate the ambient conditions leading to the occurrence of violent collapses in liquid nitrogen and analyze their thermodynamic characteristics. Using Brenner’s time ratio χ, the regime of violent collapse is identified in the ambient pressure–temperature parameter space. Complete numerical simulations further refine the prediction and illustrate two classes of collapses. At 1 < χ < 10, the collapse is impacted by significant thermal effects and attains only moderate wall velocity. Only when χ > 10 does the collapse show more inertial features. A mechanism analysis pinpoints a critical time when the surrounding liquid enters supercritical state. The ultimate collapse intensity is shown to be closely associated with the dynamics at this moment. Our study provides a fresh perspective to the treatment of cavitation in cryogenic fluids. The findings can be instrumental in engineering design to mitigate adverse effects arising from intense cavitational activities. |
| first_indexed | 2024-04-24T19:19:50Z |
| format | Article |
| id | doaj.art-9796b66d0cb34143ba6e20f6f66d9ad3 |
| institution | Directory Open Access Journal |
| issn | 1350-4177 |
| language | English |
| last_indexed | 2024-04-24T19:19:50Z |
| publishDate | 2024-03-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Ultrasonics Sonochemistry |
| spelling | doaj.art-9796b66d0cb34143ba6e20f6f66d9ad32024-03-26T04:26:39ZengElsevierUltrasonics Sonochemistry1350-41772024-03-01104106845The violent collapse of vapor bubbles in cryogenic liquidsKewen Peng0Shouceng Tian1Yiqun Zhang2Jingbin Li3Wanjun Qu4Chao Li5Guangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, China; Corresponding author.State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, ChinaGuangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, ChinaGuangdong Provincial Key Laboratory of Distributed Energy Systems, Dongguan University of Technology, Dongguan 523808, ChinaVapor bubbles in cryogenic fluids may collapse violently under subcooled and pressurized conditions. Despite important implications for engineering applications such as cavitation erosion in liquid propellant rocket engines, these intense phenomena are still largely unexplored. In this paper, we systematically investigate the ambient conditions leading to the occurrence of violent collapses in liquid nitrogen and analyze their thermodynamic characteristics. Using Brenner’s time ratio χ, the regime of violent collapse is identified in the ambient pressure–temperature parameter space. Complete numerical simulations further refine the prediction and illustrate two classes of collapses. At 1 < χ < 10, the collapse is impacted by significant thermal effects and attains only moderate wall velocity. Only when χ > 10 does the collapse show more inertial features. A mechanism analysis pinpoints a critical time when the surrounding liquid enters supercritical state. The ultimate collapse intensity is shown to be closely associated with the dynamics at this moment. Our study provides a fresh perspective to the treatment of cavitation in cryogenic fluids. The findings can be instrumental in engineering design to mitigate adverse effects arising from intense cavitational activities.http://www.sciencedirect.com/science/article/pii/S1350417724000932Violent bubble collapseCryogenic fluidsThermal effectInertial collapse |
| spellingShingle | Kewen Peng Shouceng Tian Yiqun Zhang Jingbin Li Wanjun Qu Chao Li The violent collapse of vapor bubbles in cryogenic liquids Ultrasonics Sonochemistry Violent bubble collapse Cryogenic fluids Thermal effect Inertial collapse |
| title | The violent collapse of vapor bubbles in cryogenic liquids |
| title_full | The violent collapse of vapor bubbles in cryogenic liquids |
| title_fullStr | The violent collapse of vapor bubbles in cryogenic liquids |
| title_full_unstemmed | The violent collapse of vapor bubbles in cryogenic liquids |
| title_short | The violent collapse of vapor bubbles in cryogenic liquids |
| title_sort | violent collapse of vapor bubbles in cryogenic liquids |
| topic | Violent bubble collapse Cryogenic fluids Thermal effect Inertial collapse |
| url | http://www.sciencedirect.com/science/article/pii/S1350417724000932 |
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