Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation
This study investigates the early pressure characteristics of CL-20 explosives in near-field underwater explosions, focusing on the second ultra-high-pressure pulse in the detonation product zone. We use a compressible multiphase fluid solver with high-order finite difference schemes, including fift...
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| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2024-12-01
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| Series: | AIP Advances |
| Online Access: | http://dx.doi.org/10.1063/5.0228133 |
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| author | Yi Hao Zhenxin Sheng Bo Yan Teng Xie Lunping Zhang Haibin Mao Jun Yu |
| author_facet | Yi Hao Zhenxin Sheng Bo Yan Teng Xie Lunping Zhang Haibin Mao Jun Yu |
| author_sort | Yi Hao |
| collection | DOAJ |
| description | This study investigates the early pressure characteristics of CL-20 explosives in near-field underwater explosions, focusing on the second ultra-high-pressure pulse in the detonation product zone. We use a compressible multiphase fluid solver with high-order finite difference schemes, including fifth-order weighted essentially non-oscillatory for spatial and third-order total variation diminishing Runge–Kutta for temporal discretization. The level-set method and modified ghost fluid method accurately capture multiphase interface dynamics. Validation against 1D detonation wave tests confirms the accuracy of our burn model. Numerical simulations of cylindrical and spherical CL-20 charges under near-field conditions show good agreement with the experimental data, highlighting the model’s precision in predicting shock wave propagation and interface motion. In spherical charges, the second pulse arises from rarefaction wave reflections within the gaseous products. The analysis of peak pressures at various distance-to-radius ratios provides insights into pressure distribution. These findings demonstrate the effectiveness of our numerical model in simulating complex detonation phenomena, offering valuable insights for both theoretical and practical applications. |
| format | Article |
| id | doaj-art-4dda5e8734c74f048d04c251296dc0c5 |
| institution | Kabale University |
| issn | 2158-3226 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | AIP Advances |
| spelling | doaj-art-4dda5e8734c74f048d04c251296dc0c52025-01-02T17:23:44ZengAIP Publishing LLCAIP Advances2158-32262024-12-011412125025125025-1310.1063/5.0228133Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonationYi Hao0Zhenxin Sheng1Bo Yan2Teng Xie3Lunping Zhang4Haibin Mao5Jun Yu6National Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaNational Key Laboratory of Ship Structural Safety, Wuxi 214082, ChinaThis study investigates the early pressure characteristics of CL-20 explosives in near-field underwater explosions, focusing on the second ultra-high-pressure pulse in the detonation product zone. We use a compressible multiphase fluid solver with high-order finite difference schemes, including fifth-order weighted essentially non-oscillatory for spatial and third-order total variation diminishing Runge–Kutta for temporal discretization. The level-set method and modified ghost fluid method accurately capture multiphase interface dynamics. Validation against 1D detonation wave tests confirms the accuracy of our burn model. Numerical simulations of cylindrical and spherical CL-20 charges under near-field conditions show good agreement with the experimental data, highlighting the model’s precision in predicting shock wave propagation and interface motion. In spherical charges, the second pulse arises from rarefaction wave reflections within the gaseous products. The analysis of peak pressures at various distance-to-radius ratios provides insights into pressure distribution. These findings demonstrate the effectiveness of our numerical model in simulating complex detonation phenomena, offering valuable insights for both theoretical and practical applications.http://dx.doi.org/10.1063/5.0228133 |
| spellingShingle | Yi Hao Zhenxin Sheng Bo Yan Teng Xie Lunping Zhang Haibin Mao Jun Yu Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation AIP Advances |
| title | Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation |
| title_full | Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation |
| title_fullStr | Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation |
| title_full_unstemmed | Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation |
| title_short | Investigation on the early pressure load characteristics of bubbles in near-field underwater explosion with condensed-phase CL-20 explosive detonation |
| title_sort | investigation on the early pressure load characteristics of bubbles in near field underwater explosion with condensed phase cl 20 explosive detonation |
| url | http://dx.doi.org/10.1063/5.0228133 |
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