有明海の海上空港による流況変化の数値解析

概要

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An assessment of ocean environment is presented for a planning airport in Ariake Bay, which is well known to have large tides and vast tidal marsh. A newly developed ADI method is applied for calculating the tides and currents in the bay with the effects of tidal marsh. Moving boundaries on tidal marsh are treated by the quasi-statical approaximation at every time steps in the calculations. Assessment functions for the changes of tides and currents are defined by the ocean area which is affected by the construction of a planning airport in the bay. Three locations of an island airport and an approaximated floating airport are compared in the assessment functions. Diffusion of COD from four rivers is also simulated and the distribution patterns of COD density after 30 tides are compared each other. It is found that the location of the airport is very important for ocean environment, especially near coast of tidal marsh. Those results are presented graphically.
社団法人日本船舶海洋工学会の論文
1994-09-04