Two-dimensional Mathematical Modelling Of Debris Flows With
Practical Applications
Author(s)
M. Cetina & M. Krzyk
Abstract
Two-dimensional mathematical modelling of
debris flows with practical applications
M. Cetina & M. Krzyk
University of Ljubljana, Faculty of Civil and Geodetic Engineering,
Ljubljana, Slovenia
Abstract
The paper deals with mathematical modelling of landslide - debris flow. Onedimensional
models can be used in upper parts of the affected regions where
debris flow is in a steep narrow canyon, while at relatively flat downstream areas
near villages two-dimensional models are neccessary. Two mathematical models
are described into more detail: one-dimensional model DEBlUFlD and twodimensional
model PCFLOW2D, both developed at the Faculty of Civil and
Geodetic Engineering of the University of Ljubljana. Basic continuity and
momentum conservation equations were accomplished with the non-Newtonian
Bingharn plastic fluid model proposed by O'Brien and Julien. As a case study,
numerical simulations of the landslide - debris flow, which occurred in
November 2000 and destroyed a part of the village Log pod
Keywords
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