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Journal of Mountain Science

, Volume 10, Issue 2, pp 293–304 | Cite as

Comparison between FLO-2D and Debris-2D on the application of assessment of granular debris flow hazards with case study

  • Ying-Hsin Wu
  • Ko-Fei LiuEmail author
  • Yi-Chin Chen
Article

Abstract

Numerical simulation has been widely applied to the assessment of debris flow hazards. In East Asia and especially Taiwan, the most widely used numerical programs are FLO-2D and Debris-2D. Although these two programs are applied to the same engineering tasks, they are different in many aspects. These two programs were compared according to their fundamental theories, input and output data, computational algorithms and results. Using both programs, the simulations of a real debris flow with abundant granular material induced by landslides at Xinfa village in southern Taiwan are performed for comparison. The simulation results show that Debris-2D gives better assessment in hazard area delineating and flow depth predicting. Therefore, Debris-2D is better for simulation of granular debris flows.

Keywords

Debris flow assessment Program comparison FLO-2D Debris-2D 

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Copyright information

© Science Press, Institute of Mountain Hazards and Environment, CAS and Springer-Verlag Berlin Heidelberg 2013

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Taiwan UniversityTaipeiChinese Taipei
  2. 2.Hydrotech Research InstituteNational Taiwan UniversityTaipeiChinese Taipei

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