Temporal sequence analysis of tsunami complex disaster in coastal cities

本文编制了两种海啸灾害三维数值分析程序。一种是预测海啸对河流水质的影响。将该准则应用于大阪的游道河，估算了海啸对净水厂造成的损失。另一个模型预测了大海啸时扇门式防波堤的行为；通过与实验的比较，验证了该方法的有效性。此外，应用程序对一个实际场景进行了模拟，验证了翻板式防波堤的有效性。

In this study two types of three dimensional numerical analysis code for tsunami disasters have been developed. One is for predicting the effect on water quality in rivers exposed to a tsunami flow. The damage to water purification plants due to a tsunami has been estimated by applying the code to Yodo River in Osaka. The other one predicts the behavior of a flapgate type breakwater during a huge tsunami ; its validity has been verified by comparing with experiments. Moreover the effectiveness of the flapgate type breakwater has been confirmed by applying the code to simulate a real-scale scenario.