Simulation of storm surge with wave-current coupled model on unstructured grids
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Title
- Simulation of storm surge with wave-current coupled model on unstructured grids
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Author(s)
- 윤종주; 전기천; 박광순; 심재설
- KIOST Author(s)
- null전기천
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Alternative Author(s)
- 윤종주; 전기천; 박광순; 심재설
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Publication Year
- 2012-05-24
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Abstract
- Typhoon-induced storm surge, waves, and coastal inundation in the western and southern coast of Korea region are simulated using fine mesh unstructured grid model FVCOM(an unstructured-grid Finite-Volume Coastal Ocean Model) coupled to a coastal wave model SWAN. The reanalysis 10-m wind and air pressure data are produced by WRF and a relatively simple analytical wind model are used on Typhoon wind. The wave-current couple procedure includes depth dependent wave radiation stress terms, Stokes drift, vertical transfer of wave-generated pressure transfer to the mean momentum equation, wave dissipation as a source term in the turbulence kinetic energy equation, and mean current advection and refraction of wave energy. We considered the role of wave induced forces on typhoon storm surge and the role of storm surge on the nearshore wave-field. Model results show that the extent of the simulated inundation region is increased when the effects of waves are included. Waves significantly affect the storm surge, accounting up to 25% of the total surge. This simulations show the importance of the inclusion of the wave effects for the hindcast of the water levels during the storm surge.a coastal wave model SWAN. The reanalysis 10-m wind and air pressure data are produced by WRF and a relatively simple analytical wind model are used on Typhoon wind. The wave-current couple procedure includes depth dependent wave radiation stress terms, Stokes drift, vertical transfer of wave-generated pressure transfer to the mean momentum equation, wave dissipation as a source term in the turbulence kinetic energy equation, and mean current advection and refraction of wave energy. We considered the role of wave induced forces on typhoon storm surge and the role of storm surge on the nearshore wave-field. Model results show that the extent of the simulated inundation region is increased when the effects of waves are included. Waves significantly affect th
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/27783
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Bibliographic Citation
- OCEANS 2012 YEOSU, pp.1 - 5, 2012
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Publisher
- MTS/IEEE
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Type
- Conference
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Language
- English
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