The Underwater Projectile Launching Process Prediction Based on Reduced Order Method
In this paper, computational fluid dynamics (CFD) and reduced order method (ROM) are developed for predicting the velocity time series during the initial stage of projectile launching. The overlapping grid technique is firstly applied to perform high accuracy CFD simulations of the underwater launch...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
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Wiley
2024-01-01
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| Series: | International Journal of Aerospace Engineering |
| Online Access: | http://dx.doi.org/10.1155/2024/4001586 |
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| _version_ | 1832546137712623616 |
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| author | Ke Deng Yi Jiang Huan-Xing Liu |
| author_facet | Ke Deng Yi Jiang Huan-Xing Liu |
| author_sort | Ke Deng |
| collection | DOAJ |
| description | In this paper, computational fluid dynamics (CFD) and reduced order method (ROM) are developed for predicting the velocity time series during the initial stage of projectile launching. The overlapping grid technique is firstly applied to perform high accuracy CFD simulations of the underwater launch of a submarine-launched projectile under two-parameter varying working conditions (i.e., different piston velocities and pipe interface radii). After that, the proper orthogonal decomposition (POD)–based ROM is used for decomposing the launching process into several spatial dependent mode functions and the corresponding time coefficients. The prediction of the initial stage of the launching velocity (which is the most important part of the launching process) is realized by establishing the neural network between the working condition parameters and the POD basis coefficients. The analysis results show that this method of CFD and ROM can accurately predict the complex dynamic process such as projectile launching process. |
| format | Article |
| id | doaj-art-6cdedc4f42c2458b892245d946a658a2 |
| institution | Kabale University |
| issn | 1687-5974 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Aerospace Engineering |
| spelling | doaj-art-6cdedc4f42c2458b892245d946a658a22025-02-03T07:23:46ZengWileyInternational Journal of Aerospace Engineering1687-59742024-01-01202410.1155/2024/4001586The Underwater Projectile Launching Process Prediction Based on Reduced Order MethodKe Deng0Yi Jiang1Huan-Xing Liu2Beijing Institute of TechnologyBeijing Institute of TechnologyResearch DepartmentIn this paper, computational fluid dynamics (CFD) and reduced order method (ROM) are developed for predicting the velocity time series during the initial stage of projectile launching. The overlapping grid technique is firstly applied to perform high accuracy CFD simulations of the underwater launch of a submarine-launched projectile under two-parameter varying working conditions (i.e., different piston velocities and pipe interface radii). After that, the proper orthogonal decomposition (POD)–based ROM is used for decomposing the launching process into several spatial dependent mode functions and the corresponding time coefficients. The prediction of the initial stage of the launching velocity (which is the most important part of the launching process) is realized by establishing the neural network between the working condition parameters and the POD basis coefficients. The analysis results show that this method of CFD and ROM can accurately predict the complex dynamic process such as projectile launching process.http://dx.doi.org/10.1155/2024/4001586 |
| spellingShingle | Ke Deng Yi Jiang Huan-Xing Liu The Underwater Projectile Launching Process Prediction Based on Reduced Order Method International Journal of Aerospace Engineering |
| title | The Underwater Projectile Launching Process Prediction Based on Reduced Order Method |
| title_full | The Underwater Projectile Launching Process Prediction Based on Reduced Order Method |
| title_fullStr | The Underwater Projectile Launching Process Prediction Based on Reduced Order Method |
| title_full_unstemmed | The Underwater Projectile Launching Process Prediction Based on Reduced Order Method |
| title_short | The Underwater Projectile Launching Process Prediction Based on Reduced Order Method |
| title_sort | underwater projectile launching process prediction based on reduced order method |
| url | http://dx.doi.org/10.1155/2024/4001586 |
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