Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles
ObjectiveThis paper aims to explore the hydrodynamic characteristics of underwater vehicles under the action of internal solitary waves.MethodsBased on the internal solitary wave mKdV theory under the strong stratification assumption, the incompressible Navier-Stokes （N-S） equation is discretized by...
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| Format: | Article |
| Language: | English |
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Editorial Office of Chinese Journal of Ship Research
2022-06-01
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| Series: | Zhongguo Jianchuan Yanjiu |
| Subjects: | |
| Online Access: | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02742 |
| _version_ | 1828807755702468608 |
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| author | Chao WANG Wei DU Guanghua LI Peng DU Sen ZHAO Zhuoyue LI Xiaopeng CHEN Haibao HU |
| author_facet | Chao WANG Wei DU Guanghua LI Peng DU Sen ZHAO Zhuoyue LI Xiaopeng CHEN Haibao HU |
| author_sort | Chao WANG |
| collection | DOAJ |
| description | ObjectiveThis paper aims to explore the hydrodynamic characteristics of underwater vehicles under the action of internal solitary waves.MethodsBased on the internal solitary wave mKdV theory under the strong stratification assumption, the incompressible Navier-Stokes （N-S） equation is discretized by the finite volume method. Combining the velocity entrance wave-making and overset grid methods, a numerical model of an underwater vehicle coupled with internal solitary waves in stratified flow is established. Through this model, the coupling process of internal solitary waves and fixed and suspended vehicles in different internal wave environments is simulated, and the variation law of the hydrodynamic load is obtained by numerical solution. ResultsThe amplitude of the force and moment of the underwater vehicle increases with the increase in wave amplitude. When the position of the fixed vehicle is close to the interface of two layers of fluid, it is more severely affected. When the suspended vehicle is close to the wave trough, the impact is more significant. The increase in the initial pitch angle will lead to a sharp increase in the horizontal force amplitude of the vehicle. In addition, the "falling depth" phenomenon occurs when a vehicle with initial speed is affected by the main wave and coda wave of an internal solitary wave.ConclusionThe results obtained in this paper have reference value for safe operation of underwater vehicles. |
| first_indexed | 2024-12-12T08:29:36Z |
| format | Article |
| id | doaj.art-66b84c2d7d284ed4880de7901388c980 |
| institution | Directory Open Access Journal |
| issn | 1673-3185 |
| language | English |
| last_indexed | 2024-12-12T08:29:36Z |
| publishDate | 2022-06-01 |
| publisher | Editorial Office of Chinese Journal of Ship Research |
| record_format | Article |
| series | Zhongguo Jianchuan Yanjiu |
| spelling | doaj.art-66b84c2d7d284ed4880de7901388c9802022-12-22T00:31:08ZengEditorial Office of Chinese Journal of Ship ResearchZhongguo Jianchuan Yanjiu1673-31852022-06-0117310211110.19693/j.issn.1673-3185.02742ZG2742Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehiclesChao WANG0Wei DU1Guanghua LI2Peng DU3Sen ZHAO4Zhuoyue LI5Xiaopeng CHEN6Haibao HU7School of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaWuhan Second Ship Design and Research Institute, Wuhan 430205, ChinaZhengzhou Electromechanical Engineering Research Institute, Zhengzhou 450015, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaSchool of Marine Science and Technology, Northwestern Polytechnical University, Xi 'an 710072, ChinaObjectiveThis paper aims to explore the hydrodynamic characteristics of underwater vehicles under the action of internal solitary waves.MethodsBased on the internal solitary wave mKdV theory under the strong stratification assumption, the incompressible Navier-Stokes （N-S） equation is discretized by the finite volume method. Combining the velocity entrance wave-making and overset grid methods, a numerical model of an underwater vehicle coupled with internal solitary waves in stratified flow is established. Through this model, the coupling process of internal solitary waves and fixed and suspended vehicles in different internal wave environments is simulated, and the variation law of the hydrodynamic load is obtained by numerical solution. ResultsThe amplitude of the force and moment of the underwater vehicle increases with the increase in wave amplitude. When the position of the fixed vehicle is close to the interface of two layers of fluid, it is more severely affected. When the suspended vehicle is close to the wave trough, the impact is more significant. The increase in the initial pitch angle will lead to a sharp increase in the horizontal force amplitude of the vehicle. In addition, the "falling depth" phenomenon occurs when a vehicle with initial speed is affected by the main wave and coda wave of an internal solitary wave.ConclusionThe results obtained in this paper have reference value for safe operation of underwater vehicles.http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02742underwater vehiclesinternal solitary wavehydrodynamic characteristicsnumerical simulation |
| spellingShingle | Chao WANG Wei DU Guanghua LI Peng DU Sen ZHAO Zhuoyue LI Xiaopeng CHEN Haibao HU Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles Zhongguo Jianchuan Yanjiu underwater vehicles internal solitary wave hydrodynamic characteristics numerical simulation |
| title | Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| title_full | Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| title_fullStr | Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| title_full_unstemmed | Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| title_short | Numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| title_sort | numerical simulation of influence of ocean internal waves on hydrodynamic characteristics of underwater vehicles |
| topic | underwater vehicles internal solitary wave hydrodynamic characteristics numerical simulation |
| url | http://www.ship-research.com/cn/article/doi/10.19693/j.issn.1673-3185.02742 |
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