Abstract
This study is aimed at clarifyinga wind-drift effect in a nonstationary process.In order to examinea tide level and velocity in storm surge caused by wind setup in the nonstationary process, a numerical simulation is performed by changing such conditions as water depths, wind speeds, turbulence models and so on. As a result, it is shown that the tide level caused by wind setup becomes maximum at the first peak of the harbor oscillation.Moreover, it is demonstrated that the maximum tide level increases depending on the water depth, wind speed, turbulence model and so on becauset he natural period of the harbor oscillation and the mass flux of wind-drivenc urrents are greatly related to the maximum tide level.
