Modeling Study on the Hydrodynamic Environmental Impact Caused by the Sea for Regional Construction near the Yanwo Island in Zhoushan, China

Waves are one of the most important factors affecting offshore marine engineering. Accurate calculation of wave distribution is an important prerequisite to ensure the safety of coastal engineering construction. Due to the influence of complex topography, hydrological conditions, and marine structur...

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Bibliographic Details
Published in:Water (Basel) 2019-08, Vol.11 (8), p.1674
Main Authors: Gou, He, Luo, Feng, Li, Ruijie, Dong, Xiaotian, Zhang, Yifeng
Format: Article
Language:English
Subjects:
Berthing
Boundary conditions
Boussinesq equations
Breakwaters
Coastal engineering
Construction
Energy
Engineering
Hydraulic performance
Hydrology
Marine engineering
Offshore engineering
Planning
Ports
Safety engineering
Scenic areas
Sea level
Simulation
Topography
Tourism
Wave diffraction
Wave height
Wave propagation
Wind
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Summary:Waves are one of the most important factors affecting offshore marine engineering. Accurate calculation of wave distribution is an important prerequisite to ensure the safety of coastal engineering construction. Due to the influence of complex topography, hydrological conditions, and marine structures on the propagation of waves offshore, slowly varying topography, refraction, diffraction, reflection, shallowness, and other phenomena may occur. This article combines the MIKE21 Spetral Waves (SW) wave model and the MIKE21 Boussinesq Waves (BW) wave model which are developed by Danish Hydraulic Institute (DHI) for a joint application (SW–BW nested model). It simulates the hydrodynamic environment of the Yanwo Island scenic area, located in Zhoushan, in both large and small ranges. In addition, wave height distribution and berthing stability of different breakwater planning schemes are calculated to optimize the layout of the breakwater. Through the analysis of simulation results, it is concluded that the hydraulic performance of Scheme 2 (the broken line section on the west side is 100 m long, and that on the east is 1200 m long, and the breakwater is rotated 8 degrees counterclockwise along the axis on the basis of Scheme 1) is better than that of Scheme 1 (the broken line section on the west side is 100 m long, and that on the east is 1100 m long), which can provide a more reliable construction reference for the construction of the Yanwo Island scenic area.
ISSN:2073-4441
2073-4441
DOI:10.3390/w11081674