A Study on the 3D Analysis of Debris Flow Based on Large Deformation Technique (Coupled Eulerian-Lagrangian)

대변형 해석기법(Coupled Eulerian-Lagrangian)을 이용한 3차원 토석류 거동분석

Jeong, Sang-Seom;Lee, Kwang-Woo;Ko, Jun-Young

  • Received : 2015.09.25
  • Accepted : 2015.12.21
  • Published : 2015.12.31


This paper presents the application of the Coupled Eulerian-Lagrangian (CEL) technique to simulate the debris flow. The main objective of this study is to investigate the applicability of CEL technique to the behavior of debris flow, such as flow velocity and influence area. Comprehensive studies to verify the behavior of debris flow are presented in this study. Through comparison with measured flow velocity from Umyeonsan (Mt.), CEL approach was found to be in good agreement with the general trend observed by in actual debris flow. In addition, CEL technique accurately simulated the behavior of debris flows, therefore, it can be used for designing the countermeasure structure.


Large deformation FE analysis;Coupled Eulerian-Lagrangian technique;Debris flow analysis;Flow velocity;Countermeasure structure


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