the typhoon Muifa (No. 2212) was selected as a case study. A three-way coupled hydrodynamic-wave-sediment numerical simulation was conducted using a finite element numerical model. This simulation involved the use of large-and-small-scale-nested models within an offshore wind farm site located in Jiangsu. The objective was to calculate the evolution trend of the seabed under the influence of storm surges and waves caused by the typhoon. The results demonstrate that the extent of scouring and siltation of the seabed in the site area under the influence of the typhoon is more pronounced than that under the no-typhoon scenario. During its passage
the typhoon enhances the transport of solid materials on the seabed. The use of numerical simulation allows for the analysis and prediction of the trend of sediment scouring and siltation caused by typhoons on the seabed. This provides a scientific basis for the monitoring and prediction of seabed scouring
as well as for the safety guarantee and predictive operation and maintenance of offshore wind farms.
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