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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/24161

Title: Numerical Modeling of Granular Debris Flow Using Discontinuum Approach
Authors: Huang-Cheng Yang;Shih-Meng Hsu
Contributors: NTOU:Department of Harbor and River Engineering
Keywords: Debris flow;discontinuum approach;particulate mechanics;DDA;numerical modeling
Date: 2010
Issue Date: 2011-10-20T08:10:32Z
Publisher: Proceedings of International Society of Offshore and Polar Engineers
Abstract: abstract:This paper presents the use of the discontinuum approach based on the Discontinuous Deformation Analysis (DDA) for the modeling of granular debris flows which are found to be the major type of the debris flow in Taiwan. Differing from the conventional continuum-based method which lacks of the mechanics for describing the behavior of the stony debris flow or the granular flow, our proposed method based on DDA is capable of exploring the initiation and mechanism of the granular debris flow to further understand the debris flow behavior. In addition, the incorporation of the effects of fluid flow into the DDA for establishing the methodology and code is presented in this study. Results obtained demonstrate that the proposed method can be a useful tool to model the initiation and mechanism of the granular debris flow based on the discontinuum mechanics with emphasis on the particle mechanics for more realistically studying the debris flow problem.
URI: http://ntour.ntou.edu.tw/handle/987654321/24161
Appears in Collections:[河海工程學系] 演講及研討會

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