NUMERICAL MODELING OF GRANULAR DEBRIS FLOW USING MICRO-AND MACRO-APPRO ACHES
This paper presents the numerical modeling of granular debris flow using micro-and macroapproaches. The micro-approach is 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. On the other hand, the macro-approach from solving the one-dimensional shallow water equations for the modeling of fluid flow with the incorporation of the DDA is conducted. 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, the proposed method with the combination of micro- and macro- approaches is capable of exploring the initiation and mechanism of the granular debris flow to further understand the debris flow behavior.
debris flow discontinuum approach granular particle DDA numerical modeling
Cheng-yu Ku Huang-cheng Yang Jeen-shang Lin
Department of Harbor and River Engineering, National Taiwan Ocean University Department of Civil and Environmental Engineering, University of Pittsburgh, USA
国际会议
广州
英文
249-254
2010-12-17（万方平台首次上网日期，不代表论文的发表时间）