Abstract
In rough seas, ships may be subject to wave-induced slamming loads caused by high vertical velocities and accelerations imposed by incident waves in way of water entry. Suitable modelling of fluid and structural mechanics, and their dynamic interactions may help with the evaluation of local slamming loads for use in design. This paper presents the use of a partitioned FSI method combining CFD and dynamic FEA via a two - way coupling scheme with the aim to study the influence of water impact on flat plate and wedge structures entering the water. The approach employs a volume of fluid (VOF) method to track the shape and position of the air-water interface. An implicit unsteady solver is utilized to solve the governing equations based on Finite Volume Method (FVM) and nonlinear transient dynamic responses are implemented by FEA. Computational results are assessed and compared against available experimental data. It is concluded that even when the speed of the body motion is moderate, the contact boundary between the water and structure expand at high speed in way of water entry. Slamming loads may vary depending on the magnitude of impact pressure, the angle of impingement on water and the flexibility of the structure.
Original language | English |
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Title of host publication | Proceedings of the International Conference on Ships and Offshore Structures ICSOS 2021 |
Number of pages | 12 |
Publication status | Published - 6 Sept 2021 |
MoE publication type | Not Eligible |
Event | International Conference on Ships and Offshore Structures - Hamburg, Germany Duration: 6 Sept 2020 → 8 Sept 2021 https://www.icsos.info/past-conferencese289df64 |
Conference
Conference | International Conference on Ships and Offshore Structures |
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Abbreviated title | ICSOS |
Country/Territory | Germany |
City | Hamburg |
Period | 06/09/2020 → 08/09/2021 |
Internet address |
Keywords
- Sea Loads
- Slamming
- Hydroelasticity
- Fluid–structure–interactions (FSI)
- CFD
- FEA
Field of art
- Design