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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/62453


    Title: 台灣海嘯石之運動模擬與古海嘯事件重建;Numerical Simulation on the Kinematic of Taiwan Tsunami Boulders and Event Reconstruction of the Paleotsunami
    Authors: 吳祚任;朱佳仁;王仲宇
    Contributors: 國立中央大學水文與海洋科學研究所
    Keywords: 地球科學;海洋科學
    Date: 2012-12-01
    Issue Date: 2014-03-17 11:33:01 (UTC+8)
    Publisher: 行政院國家科學委員會
    Abstract: 研究期間:10108~10207;Tsunami boulders are coral reefs transported by tsunami bores and deposited in a dry land area. Because the size and location recorded the information of tsunami magnitude and direction, the tsunami boulders can be used to understand the background of the paleotsunamis and paleoearthquakes. In this project, we will perform the numerical simulation on the transportation of the tsunami boulders found at the northern Kenting National Park. In this study, the 3D multi-phase two-way coupled numerical model developed in the previous NSC founded project will be adopted to simulate the impinging process of the tsunami boulders with the tsunami bores. Based on the field survey we will construct the geometry of the boulders and the elevation of the coastal area. The scenario analysis will also be utilized to study the complete process of the boulder transportation. A series of laboratory experiments will be executed for validating the model accuracy. In order to have accurate description on the tectonic geomorphology and sea level changes, Professor Yoko Ota is invited to join this project. In the numerical simulation, we will adopt the 3D parallel technique for mass computation. The tsunami bore presented in the near shore region will be described by the volume of fluid (VOF) method. This model is coupled with 3D discrete element method (DEM) to accurately simulate the movement of the drifting boulders. The final deposition location will be used to invers the incoming wave speed, direction, and wave height. The data can be used for the inversion of paleotsunamis and paleoearthquakes. The research result is expected to be useful for understanding the tsunami history in Taiwan and can be used as a reference of tsunami hazard mitigation
    Relation: 財團法人國家實驗研究院科技政策研究與資訊中心
    Appears in Collections:[水文與海洋科學研究所] 研究計畫

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