A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch
A high-precision calculation method for internal trajectory was proposed for the pneumatic launch system of underwater weapons. The method combined high-precision theoretical derivation with computational fluid mechanics slip technique and used the fourth-order Runge-Kutta method to solve the high-p...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | zho |
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Science Press (China)
2024-12-01
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| Series: | 水下无人系统学报 |
| Subjects: | |
| Online Access: | https://sxwrxtxb.xml-journal.net/cn/article/doi/10.11993/j.issn.2096-3920.2023-0123 |
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| _version_ | 1841557039874048000 |
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| author | Chun YANG Kaifu LI Weibin CHEN Lutian LI Yinlong LI |
| author_facet | Chun YANG Kaifu LI Weibin CHEN Lutian LI Yinlong LI |
| author_sort | Chun YANG |
| collection | DOAJ |
| description | A high-precision calculation method for internal trajectory was proposed for the pneumatic launch system of underwater weapons. The method combined high-precision theoretical derivation with computational fluid mechanics slip technique and used the fourth-order Runge-Kutta method to solve the high-pressure gas domain during the launch process. The sliding grid was used to simulate the single degree of freedom weapon launch in the water area, so as to realize the high-precision calculation of internal trajectory, which could make up for the defects of large theoretical calculation error and high cost of fluid simulation. Through comparison with the test data, it can be seen that the average error of the discharge velocity of the weapon and the average error of the cutoff pressure of the posterior cavity obtained by this method are 5.6% and 4.0%, which proves the accuracy of this method. |
| format | Article |
| id | doaj-art-bca3496aa1ee47388377c43d46ddf200 |
| institution | Kabale University |
| issn | 2096-3920 |
| language | zho |
| publishDate | 2024-12-01 |
| publisher | Science Press (China) |
| record_format | Article |
| series | 水下无人系统学报 |
| spelling | doaj-art-bca3496aa1ee47388377c43d46ddf2002025-01-07T02:42:15ZzhoScience Press (China)水下无人系统学报2096-39202024-12-013261117112210.11993/j.issn.2096-3920.2023-01232023-0123A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon LaunchChun YANG0Kaifu LI1Weibin CHEN2Lutian LI3Yinlong LI4The 705 Research Institute, China State Shipbuilding Corporation Limited, Kunming 650101, ChinaThe 705 Research Institute, China State Shipbuilding Corporation Limited, Kunming 650101, ChinaThe 705 Research Institute, China State Shipbuilding Corporation Limited, Kunming 650101, ChinaKunming Optics-Mechanics-Electricity Technology Corporation Limited, Kunming 650106, ChinaThe 705 Research Institute, China State Shipbuilding Corporation Limited, Kunming 650101, ChinaA high-precision calculation method for internal trajectory was proposed for the pneumatic launch system of underwater weapons. The method combined high-precision theoretical derivation with computational fluid mechanics slip technique and used the fourth-order Runge-Kutta method to solve the high-pressure gas domain during the launch process. The sliding grid was used to simulate the single degree of freedom weapon launch in the water area, so as to realize the high-precision calculation of internal trajectory, which could make up for the defects of large theoretical calculation error and high cost of fluid simulation. Through comparison with the test data, it can be seen that the average error of the discharge velocity of the weapon and the average error of the cutoff pressure of the posterior cavity obtained by this method are 5.6% and 4.0%, which proves the accuracy of this method.https://sxwrxtxb.xml-journal.net/cn/article/doi/10.11993/j.issn.2096-3920.2023-0123underwater weapon; computational fluid mechanicsinternal trajectorypneumatic launch system |
| spellingShingle | Chun YANG Kaifu LI Weibin CHEN Lutian LI Yinlong LI A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch 水下无人系统学报 underwater weapon; computational fluid mechanics internal trajectory pneumatic launch system |
| title | A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch |
| title_full | A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch |
| title_fullStr | A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch |
| title_full_unstemmed | A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch |
| title_short | A High-Precision Calculation Method for Internal Trajectory of Underwater Weapon Launch |
| title_sort | high precision calculation method for internal trajectory of underwater weapon launch |
| topic | underwater weapon; computational fluid mechanics internal trajectory pneumatic launch system |
| url | https://sxwrxtxb.xml-journal.net/cn/article/doi/10.11993/j.issn.2096-3920.2023-0123 |
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