MECモデルを用いた海域浄化装置の効果に関する数値シミュレーション

概要

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The authors took part in a project for developing a new ocean model called the MEC model, the special feature of which is that the model comprises hydrostatic and full-3D(non-hydrostatic)models for analyzing two different-scale physical phenomena, i.e. 1km-100km and 1m-100m. The connection between the two models are such that the full-3D model domain matches one cell of the hydrostatic model and that the velocities of the hydrostatic model on the interface is calculated by using both of hydrostatic and full-3D velocities and those of full-3D model are interpolated trilinearly by using the ones in the hydrostatic model. We applied the model to the simulations of purification effects of the Density Current Generator set in Hazama-Inlet, Gokasyo-Bay in Mie, where red tide has been insignificant at least for these 4 years since the installation of the apparatus. Simulation results indicated that the apparatus puts the water including nutrients sucked from the bottom onto the thermocline and that such water intrudes in the horizontal direction and never mixes in the vertical direction. The water of nutrients on the thermocline is numerically simulated to spread to the whole bay within a week mainly by tidal motion.
社団法人日本船舶海洋工学会の論文
2001-09-25