STUDY OF IMPROVEMENT OF DENSITY STRATIFICATION USING THE UPWELLING GENERATED BY COANDA EFFECT

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  • SATO Daisaku
    東京電機大学 理工学部理工学科建築・都市環境学系

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  • コアンダ効果を利用した湧昇流発生手法による密度成層の混合促進に関する検討

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<p> Organic contaminant is a significant problem in ponds and dam. Adopting of the new method of improvement of density stratification was considered by numerical simulations and experiments. In this study Nomura dam in Ehime prefecture was selected as the adopting site of the method. The simulated results were compared with the experiment results and showed a good agreement. Then, the simulated results using the flow and stratification conditions of Nomura dam indicated that the method of this study had an effectiveness for mixing layer. As an example of installing the equipment generating the upwelling, the semicircular outflow equipment was considered by experiments. From the results of experiments, the water purification curve of Nomura dam was identified, that is convenient for estimating the effective condition of installing the equipment.</p>

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