1. Risk Assessment of Wave Over-Topping Based on Smoothed-Particle Hydrodynamics Method
- Author
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Lei Wang, Li Zhang, Yanshuang Xie, Yaozhao Zhong, Yuan Sun, Zhiyuan Wang, Feng Zhang, and Shaoping Shang
- Subjects
seawall ,flooding risk assessment ,waves ,storm surge ,Naval architecture. Shipbuilding. Marine engineering ,VM1-989 ,Oceanography ,GC1-1581 - Abstract
FETSWCM-SWAN and DualSPHysics models are used to study the storm flooding process of Dazuo Seawall in Quanzhou city, Fujian province, China. Firstly, a storm over-topping assessment method is proposed. Secondly, the water level and storm wave at the foot of Dazuo Seawall calculated by FETSWCM-SWAN during the process of Typhoon Usagi in 2013 and Typhoon Dujuan in 2015. Finally, the typical wave and storm run-up processes at Dazuo Seawall are modeled by DualSPHysics. The results show that the typical wave run-up of Dazuo Seawall is less than 2 m, but the storm wave run-up can reach 6.85 m under Usagi. The risk is high when high tide is encountered. The risk of storm flooding is classified into three grades. This risk assessment could provide decision-making support to government departments in warning against storm flooding threats.
- Published
- 2022
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