Tidal simulation of a bay with a very large floating structure using a multi-level model

Accurate tidal flow simulation is necessary for environmental assessment of a large-scale ocean development in a bay, because the flow plays an important role in mass-transport and other physical phenomena. In this paper the authors present a method to simulate tidal flows of a bay with a very large floating structure using a multi-level model. Pressure under the pontoon-type floating structure is obtained by solving the Poisson equation. Effects of vertical displacement of the pontoon due to tidal force are considered in the tidal simulation. Tidal currents, residual currents and wind driven currents in a bay with/without the structure are presented graphically and discussed.