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Numerical Simulation of Typhoon-generated Waves using WAM with Implicit Scheme  

Chun, Je-Ho (Institute of Construction and Environmental Research, Handong Global University)
Ahn, Kyung-Mo (School of Spatial Environmental System Engineering, Handong Global University)
Yoon, Jong-Tae (Department of Civil Engineering, Kyungsung University)
Publication Information
Journal of Korean Society of Coastal and Ocean Engineers / v.18, no.4, 2006 , pp. 294-300 More about this Journal
Abstract
Implicit numerical scheme using fractional step method and FCT is used to improve the computational efficiency of WAM. Square wave test and simulation of typhoon generated waves are conducted to verify the numerical scheme. The applied scheme shows much less numerical diffusion and due to the implicit character of the scheme much larger time steps can be used without numerical instability. For typhoon MAEMI, comparison between the numerical results and the measured data shows good agreement.
Keywords
typhoon; implicit scheme; WAM; wave model; wave spectrum;
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