2334 二酸化炭素海洋中層隔離法の数値予測モデル

概要

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It is important to predict biological impacts caused by the ocean sequestration of CO_2. For this purpose, a mortality model was developed to predict the acute lethal damage of CO_2 to marine organisms. The model was installed in a LES code with mass transfer, with had been developed in order to reconstruct fluctuating flows in the small-scale ocean based on single-point measurement in the real sea. In the method, small-wavenumber components of fluctuation are forced and large-wavenumber components evolve freely in the computation. Energy spectrum in the wavenumber space is made from the time-sequential data obtained at a single measurement point, assuming the Taylor's hypothesis and spherically even distribution of energy for large eddies. The simulation results suggest that the biological impacts of the CO_2 sequestration can be insignificant in terms of mortality in the cases proposed in this article.
一般社団法人日本機械学会の論文
2003-08-05