Memorias de investigación
Research Publications in journals:
Comparison of Two Depth Averaged Numerical Models For Debris Flow Runout Estimation
Year:2018

Research Areas
  • Applications for ingineerings and sciences,
  • Civil engineering and architecture

Information
Abstract
This paper analyses an important aspect of the continuum numerical modeling of rapid landslides as debris flows: by using the same rheological parameter values, are the results, obtained with codes that implement the same constitutive equations but a different numerical solver, equal? In order to answer this question, the two numerical codes RASH3D and GeoFlow_SPH are here used to back-analyze the debris flow event occurred in the Nora stream (Northwestern Italian Alps) in October 2000. Comparison of results evidenced that the RASH3D best fit rheological values for the Nora event back analysis overestimated both the final depositional heights and the simulated flow velocities if used in GeoFlow_SPH. In order to obtain thickness values comparable with those measured in situ, it was necessary to re-calibrate GeoFlow_SPH rheological parameter values. In this way, with the exception of a larger lateral spreading of the sliding mass given by RASH3D, both thickness and velocity values were similar for the two numerical codes.
International
Si
JCR
Si
Title
Canadian Geotechnical Journal
ISBN
0008-3674
Impact factor JCR
2,138
Impact info
Datos JCR del año 2016
Volume
10.1139/cgj-2017-0455
Journal number
From page
1
To page
46
Month
ABRIL
Ranking
Participants

Research Group, Departaments and Institutes related
  • Creador: Centro o Instituto I+D+i: Centro de Investigación en Simulación Computacional
  • Departamento: Matemática e Informática Aplicadas a la Ingenierías Civil y Naval