Simulating the evolution of focused waves by a two-layer Boussinesq-type model

Ping Wang; Zhongbo Liu; Kezhao Fang; Wenfeng Zou; Xiangke Dong; Jiawen Sun

doi:10.1007/s13131-024-2321-z

Volume 43 Issue 5

May 2024

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Article Navigation > Acta Oceanologica Sinica > 2024 > 43(5): 91-99

Ping Wang, Zhongbo Liu, Kezhao Fang, Wenfeng Zou, Xiangke Dong, Jiawen Sun. Simulating the evolution of focused waves by a two-layer Boussinesq-type model[J]. Acta Oceanologica Sinica, 2024, 43(5): 91-99. doi: 10.1007/s13131-024-2321-z

Citation:

Ping Wang, Zhongbo Liu, Kezhao Fang, Wenfeng Zou, Xiangke Dong, Jiawen Sun. Simulating the evolution of focused waves by a two-layer Boussinesq-type model[J]. Acta Oceanologica Sinica, 2024, 43(5): 91-99. doi: 10.1007/s13131-024-2321-z

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Simulating the evolution of focused waves by a two-layer Boussinesq-type model

doi: 10.1007/s13131-024-2321-z

1.
State Environmental Protection Key Laboratory of Marine Ecosystem Restoration, National Marine Environmental Monitoring Center, Dalian 116023, China
2.
College of Transportation Engineering, Dalian Maritime University, Dalian 116026, China
3.
State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China

Funds: The National Natural Science Foundation under contract Nos 52171247, 51779022, 52071057, and 51709054.

More Information

Corresponding author: E-mail: liuzhongbo@dlmu.edu.cn
Received Date: 2023-07-30
Accepted Date: 2024-01-03

Available Online: 2024-04-26

Publish Date: 2024-05-30

Abstract

Abstract

Accurate simulation of the evolution of freak waves by the wave phase focusing method requires accurate linear and nonlinear properties, especially in deep-water conditions. In this paper, we analyze the ability to simulate deep-water focused waves of a two-layer Boussinesq-type (BT) model, which has been shown to have excellent linear and nonlinear performance. To further improve the numerical accuracy and stability, the internal wave-generated method is introduced into the two-layer Boussinesq-type model. Firstly, the sensitivity of the numerical results to the grid resolution is analyzed to verify the convergence of the model; secondly, the focused wave propagating in two opposite directions is simulated to prove the symmetry of the numerical results and the feasibility of the internal wave-generated method; thirdly, the limiting focused wave condition is simulated to compare and analyze the wave surface and the horizontal velocity of the profile at the focusing position, which is in good agreement with the measured values. Meanwhile the simulation of focused waves in very deep waters agrees well with the measured values, which further demonstrates the capability of the two-layer BT model in simulating focused waves in deep waters.
- focused waves,
- numerical simulation,
- Boussinesq-type model,
- velocity profile

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References(32)

References

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