On the question of the fine fragmentation of liquid-metal droplets during steam explosions
The presented results are based on experimental and computational studies aimed at justifying the application of the cavitation-acoustic hypothesis in describing the process of “fine” fragmentation of hot droplets falling into cold water. Such a process plays a crucial role in small-scale steam expl...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2023-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_04022.pdf |
| _version_ | 1797345257502801920 |
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| author | Ivochkin Yuri Koveshnikov Kirill Kubrikov Konstantin Sinkevich Oleg Teplyakov Igor Yudin Stepan Vinogradov Dmitri |
| author_facet | Ivochkin Yuri Koveshnikov Kirill Kubrikov Konstantin Sinkevich Oleg Teplyakov Igor Yudin Stepan Vinogradov Dmitri |
| author_sort | Ivochkin Yuri |
| collection | DOAJ |
| description | The presented results are based on experimental and computational studies aimed at justifying the application of the cavitation-acoustic hypothesis in describing the process of “fine” fragmentation of hot droplets falling into cold water. Such a process plays a crucial role in small-scale steam explosions. Brief descriptions of other possible mechanisms for the fragmentation of liquid-metal droplets under different conditions are provided, with the main focus given to the fragmentation process induced by shock waves generated by pulsed laser irradiation and mechanical impact. Experimental data on pressure impulses resulting from the collapse of vapor bubbles formed upon contact between the coolant (cold water) and the overheated surface are presented. It is demonstrated that the obtained data, along with photographic evidence of the molten fragments, are consistent with the assumption of the development of the fine fragmentation process according to the cavitation-acoustic scenario. Approximate calculations conducted within the acoustic approximation support this hypothesis. |
| first_indexed | 2024-03-08T11:14:54Z |
| format | Article |
| id | doaj.art-f59cd7458d0e498ca20739691b9b12b0 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-03-08T11:14:54Z |
| publishDate | 2023-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-f59cd7458d0e498ca20739691b9b12b02024-01-26T10:38:24ZengEDP SciencesE3S Web of Conferences2267-12422023-01-014590402210.1051/e3sconf/202345904022e3sconf_sts-39_04022On the question of the fine fragmentation of liquid-metal droplets during steam explosionsIvochkin Yuri0Koveshnikov Kirill1Kubrikov Konstantin2Sinkevich Oleg3Teplyakov Igor4Yudin Stepan5Vinogradov Dmitri6Joint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesJoint Institute for High Temperatures, Russian Academy of SciencesThe presented results are based on experimental and computational studies aimed at justifying the application of the cavitation-acoustic hypothesis in describing the process of “fine” fragmentation of hot droplets falling into cold water. Such a process plays a crucial role in small-scale steam explosions. Brief descriptions of other possible mechanisms for the fragmentation of liquid-metal droplets under different conditions are provided, with the main focus given to the fragmentation process induced by shock waves generated by pulsed laser irradiation and mechanical impact. Experimental data on pressure impulses resulting from the collapse of vapor bubbles formed upon contact between the coolant (cold water) and the overheated surface are presented. It is demonstrated that the obtained data, along with photographic evidence of the molten fragments, are consistent with the assumption of the development of the fine fragmentation process according to the cavitation-acoustic scenario. Approximate calculations conducted within the acoustic approximation support this hypothesis.https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_04022.pdf |
| spellingShingle | Ivochkin Yuri Koveshnikov Kirill Kubrikov Konstantin Sinkevich Oleg Teplyakov Igor Yudin Stepan Vinogradov Dmitri On the question of the fine fragmentation of liquid-metal droplets during steam explosions E3S Web of Conferences |
| title | On the question of the fine fragmentation of liquid-metal droplets during steam explosions |
| title_full | On the question of the fine fragmentation of liquid-metal droplets during steam explosions |
| title_fullStr | On the question of the fine fragmentation of liquid-metal droplets during steam explosions |
| title_full_unstemmed | On the question of the fine fragmentation of liquid-metal droplets during steam explosions |
| title_short | On the question of the fine fragmentation of liquid-metal droplets during steam explosions |
| title_sort | on the question of the fine fragmentation of liquid metal droplets during steam explosions |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2023/96/e3sconf_sts-39_04022.pdf |
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