TXT-tool 3.886-1.1: Debris2D Tutorial

Chapter

Abstract

The introduction of the Debris-2D program for two-dimensional debris flow simulation is presented. Debris-2D is one of the most used models in Taiwan, and it has been verified as a practical tool for debris flow assessment. The introduction focuses on the theoretical background, computational algorithm, program input and output data, and applications review. In the fundamental theory, debris flow is treated as a non-Newtonian fluid with a yield stress. For simulations, the input data includes initial mass distributions of debris flow and yield stress. Debris-2D can simulate and output flow depth, flow velocity, impact force, and affected area of time variation with high spatial and arbitrary temporal resolution. Some simulation results of real cases in Taiwan are described. These results show that Debris-2D is a practical and effective program for debris flow assessment.

Keywords

Debris-2D Debris flow Numerical simulation Assessment 

References

  1. Julien PY, Lan Y (1991) Rheology of hyper-concentrations. J Hydr Eng ASCE 117(3):346–353CrossRefGoogle Scholar
  2. Liu KF, Lee FC, Tsai SP (1997) The flow field and impact force on a debris dam. In: Proceedings of the first international conference on debris-flow hazards mitigation: mechanics, prediction, and assessment, pp 737–746Google Scholar
  3. Liu KF, Huang MC (2006) Numerical simulation of debris flow with application on hazard area mapping. Comput Geosci 10:221–240CrossRefGoogle Scholar
  4. Liu KF, Li HC (2007) The assessment of debris flow emergency measures. J City Plann 34(1):57–73 (in Chinese)Google Scholar
  5. Liu KF, Li HC, Hsu YC (2009) Debris flow hazard defense magnitude assessment with numerical simulation. Nat Hazards 49(1):137–161CrossRefGoogle Scholar
  6. Liu KF, Wu YH (2010) The assessment of debris flow hazard in Korea using Debris-2D. In: Interpraevent 2010 international symposium in Pacific Rim, TaiwanGoogle Scholar
  7. Wu YH, Liu KF, Chen YC (2013) Comparison between FLO-2D and Debris-2D on the application of assessment of granular debris flow hazards with case study. J Mt Sci. doi: 10.1007/s11629-013-2511-1Google Scholar
  8. Takahashi T (1981) Debris flow. Ann Rev Fluid Mech 13:57–77CrossRefGoogle Scholar
  9. Tsai MP, Hsu YC, Li HC, Shu HM, Liu KF (2011) Applications of simulation technique on debris flow hazard zone delineation: a case study in Daniao tribe, Eastern Taiwan. Nat Hazard Earth Syst 11:3053–3062CrossRefGoogle Scholar

Copyright information

© Springer International Publishing AG 2018

Authors and Affiliations

  1. 1.Department of Civil EngineeringNational Taiwan UniversityTaipeiTaiwan, Republic of China
  2. 2.Disaster Research Prevention InstituteKyoto UniversityKyotoJapan

Personalised recommendations