Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow
This study examines the influence of drift angle on the wave and flow field generated by a submarine navigating through a density-stratified fluid. Employing a numerical methodology, this research computed the viscous flow field around the SUBOFF bare hull under conditions of oblique shipping maneuv...
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| Language: | English |
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MDPI AG
2024-11-01
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| Series: | Journal of Marine Science and Engineering |
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| Online Access: | https://www.mdpi.com/2077-1312/12/12/2139 |
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| author | Xiaoxing Zhao Liuliu Shi Eryun Chen |
| author_facet | Xiaoxing Zhao Liuliu Shi Eryun Chen |
| author_sort | Xiaoxing Zhao |
| collection | DOAJ |
| description | This study examines the influence of drift angle on the wave and flow field generated by a submarine navigating through a density-stratified fluid. Employing a numerical methodology, this research computed the viscous flow field around the SUBOFF bare hull under conditions of oblique shipping maneuvers. The analytical framework relies on the Reynolds-Averaged Navier–Stokes (RANS) equations, supplemented by the Re-Normalization Group (RNG) k-ε turbulence model and the Volume of Fluid (VOF) method. The initial phases of this study involved verifying grid convergence and the accuracy of the numerical methods used. Subsequently, numerical simulations were performed across a spectrum of drift angles while maintaining a fixed Froude number of F<sub>n</sub> = 0.5, with submergence depths set at 1.1 D and 2.0 D. The analysis focused on the wave profiles at both the free surface and the internal surface. The results indicate that the presence of a drift angle produces significant alterations in the characteristics of the free surface and internal surface when compared with straight-ahead motion. Specifically, the asymmetry in the flow field is enhanced, and the variability in the roughness of the free surface is pronounced. |
| format | Article |
| id | doaj-art-3be973238ece43fda6c8f468ca284737 |
| institution | DOAJ |
| issn | 2077-1312 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Marine Science and Engineering |
| spelling | doaj-art-3be973238ece43fda6c8f468ca2847372025-08-20T02:50:59ZengMDPI AGJournal of Marine Science and Engineering2077-13122024-11-011212213910.3390/jmse12122139Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer FlowXiaoxing Zhao0Liuliu Shi1Eryun Chen2School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaThis study examines the influence of drift angle on the wave and flow field generated by a submarine navigating through a density-stratified fluid. Employing a numerical methodology, this research computed the viscous flow field around the SUBOFF bare hull under conditions of oblique shipping maneuvers. The analytical framework relies on the Reynolds-Averaged Navier–Stokes (RANS) equations, supplemented by the Re-Normalization Group (RNG) k-ε turbulence model and the Volume of Fluid (VOF) method. The initial phases of this study involved verifying grid convergence and the accuracy of the numerical methods used. Subsequently, numerical simulations were performed across a spectrum of drift angles while maintaining a fixed Froude number of F<sub>n</sub> = 0.5, with submergence depths set at 1.1 D and 2.0 D. The analysis focused on the wave profiles at both the free surface and the internal surface. The results indicate that the presence of a drift angle produces significant alterations in the characteristics of the free surface and internal surface when compared with straight-ahead motion. Specifically, the asymmetry in the flow field is enhanced, and the variability in the roughness of the free surface is pronounced.https://www.mdpi.com/2077-1312/12/12/2139stratified fluiddrift angleSUBOFFoblique shipping maneuvers |
| spellingShingle | Xiaoxing Zhao Liuliu Shi Eryun Chen Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow Journal of Marine Science and Engineering stratified fluid drift angle SUBOFF oblique shipping maneuvers |
| title | Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow |
| title_full | Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow |
| title_fullStr | Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow |
| title_full_unstemmed | Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow |
| title_short | Numerical Study on the Influence of Drift Angle on Wave Properties in a Two-Layer Flow |
| title_sort | numerical study on the influence of drift angle on wave properties in a two layer flow |
| topic | stratified fluid drift angle SUBOFF oblique shipping maneuvers |
| url | https://www.mdpi.com/2077-1312/12/12/2139 |
| work_keys_str_mv | AT xiaoxingzhao numericalstudyontheinfluenceofdriftangleonwavepropertiesinatwolayerflow AT liuliushi numericalstudyontheinfluenceofdriftangleonwavepropertiesinatwolayerflow AT eryunchen numericalstudyontheinfluenceofdriftangleonwavepropertiesinatwolayerflow |