Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory
ABSTRACTThe motion response of a ship in a cross sea is studied based on computational fluid dynamics. Firstly, according to the established numerical pool, and based on the Reynolds-averaged Navier–Stokes equations and the re-normalisation group K–ϵ turbulence model, the free surface is treated by...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Taylor & Francis Group
2023-12-01
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| Series: | Engineering Applications of Computational Fluid Mechanics |
| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/10.1080/19942060.2022.2164618 |
| _version_ | 1797403921075929088 |
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| author | Yu Lu Wu Shao Zhuhao Gu Chunxiao Wu Chuang Li |
| author_facet | Yu Lu Wu Shao Zhuhao Gu Chunxiao Wu Chuang Li |
| author_sort | Yu Lu |
| collection | DOAJ |
| description | ABSTRACTThe motion response of a ship in a cross sea is studied based on computational fluid dynamics. Firstly, according to the established numerical pool, and based on the Reynolds-averaged Navier–Stokes equations and the re-normalisation group K–ϵ turbulence model, the free surface is treated by the volume of fluid(VOF) method, and a numerical simulation method is established. The wave results obtained by the numerical simulation are compared with theoretical waves to verify the reliability of the method. Then, considering the DTMB5415 ship model, a prediction method for the ship’s motion in a cross sea is established by using an overlapping mesh and VOF technology. The influence of a cross sea on ship motion performance under different wave direction angles, different wave heights and for different periods is analyzed. In addition, a method is also established for studying the ship’s motion response based on potential flow theory, and it is found that ships sailing under superimposed waves will exhibit the phenomenon of beat vibration. Finally, by comparing the results obtained by the two methods, the consistency of the two methods is verified, which provides a strong basis for the safety assessment of ships in cross seas. |
| first_indexed | 2024-03-09T02:46:26Z |
| format | Article |
| id | doaj.art-9f17d9be40c444af990ec8180e13176f |
| institution | Directory Open Access Journal |
| issn | 1994-2060 1997-003X |
| language | English |
| last_indexed | 2024-03-09T02:46:26Z |
| publishDate | 2023-12-01 |
| publisher | Taylor & Francis Group |
| record_format | Article |
| series | Engineering Applications of Computational Fluid Mechanics |
| spelling | doaj.art-9f17d9be40c444af990ec8180e13176f2023-12-05T16:53:44ZengTaylor & Francis GroupEngineering Applications of Computational Fluid Mechanics1994-20601997-003X2023-12-0117110.1080/19942060.2022.2164618Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theoryYu Lu0Wu Shao1Zhuhao Gu2Chunxiao Wu3Chuang Li4Naval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, People’s Republic of ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, People’s Republic of ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, People’s Republic of ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, People’s Republic of ChinaNaval Architecture and Ocean Engineering College, Dalian Maritime University, Dalian, People’s Republic of ChinaABSTRACTThe motion response of a ship in a cross sea is studied based on computational fluid dynamics. Firstly, according to the established numerical pool, and based on the Reynolds-averaged Navier–Stokes equations and the re-normalisation group K–ϵ turbulence model, the free surface is treated by the volume of fluid(VOF) method, and a numerical simulation method is established. The wave results obtained by the numerical simulation are compared with theoretical waves to verify the reliability of the method. Then, considering the DTMB5415 ship model, a prediction method for the ship’s motion in a cross sea is established by using an overlapping mesh and VOF technology. The influence of a cross sea on ship motion performance under different wave direction angles, different wave heights and for different periods is analyzed. In addition, a method is also established for studying the ship’s motion response based on potential flow theory, and it is found that ships sailing under superimposed waves will exhibit the phenomenon of beat vibration. Finally, by comparing the results obtained by the two methods, the consistency of the two methods is verified, which provides a strong basis for the safety assessment of ships in cross seas.https://www.tandfonline.com/doi/10.1080/19942060.2022.2164618Computational fluid dynamicscross seaseakeeping performancenonlinear |
| spellingShingle | Yu Lu Wu Shao Zhuhao Gu Chunxiao Wu Chuang Li Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory Engineering Applications of Computational Fluid Mechanics Computational fluid dynamics cross sea seakeeping performance nonlinear |
| title | Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| title_full | Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| title_fullStr | Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| title_full_unstemmed | Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| title_short | Research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| title_sort | research on ship motion characteristics in a cross sea based on computational fluid dynamics and potential flow theory |
| topic | Computational fluid dynamics cross sea seakeeping performance nonlinear |
| url | https://www.tandfonline.com/doi/10.1080/19942060.2022.2164618 |
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