Abstract
The phenomenon of gap resonance has increasingly captured the attention of researchers due to its significant impact on offshore and coastal structures. Despite extensive studies, the effect of the heave motion of floating structures on gap resonance has lacked thorough investigation. This paper addresses this gap by using a two-dimensional numerical wave tank in OpenFOAM (version v1812) to compare both fixed-box and floating-box systems. Our findings reveal that the inclusion of the heave motions of structures shifts the resonance frequency to higher values (larger kh) and significantly reduces wave amplification compared with fixed-box systems. Furthermore, while gap resonance can induce extreme wave forces, its impact on the rear box in floating-box systems is minimal. These results underscore the necessity of considering the motion of floating structures in gap resonance studies to enhance the stability and design of offshore and coastal structures, a factor that has been insufficiently addressed in previous research.
| Original language | English |
|---|---|
| Article number | 3644 |
| Journal | Water |
| Volume | 16 |
| Issue number | 24 |
| Early online date | 18 Dec 2024 |
| DOIs | |
| Publication status | Published - 18 Dec 2024 |
Data Availability Statement
The data presented in this study are available on request from the corresponding author.Funding
This work was financially supported by the Royal Academy of Engineering (grant no. UK-CIAPP/73), the UK EPSRC (grant no. EP/M022382/1; grant no. EP/T026782/1), the National Natural Science Foundation of China (grant no. 52371277), the State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation (Tianjin University) (grant no. HESS-2323), and the Guangdong Basic and Applied Basic Research Foundation (grant no. 2023A1515010890).