Numerical Simulation of Debris-flow Behavior Incorporating a Dynamic Method for Estimating the Entrainment

Release time:2018-06-13

Journal:Engineering Geology

Abstract:There is a pressing need to estimate debris-flow entrainment because several lines of studies have substantiated that the magnitude of a debris flow may grow manyfold due to sediment entrainment. In this paper, we present a two-dimensional numerical model of debris-flow behavior for estimating entrainment over complex topography. The model is governed by a numerical integration of the depth-average motion equations using shallow water approximation. The governing equations are numerically solved using the semi-Lagrangian method in an explicit finite difference grid. Compared to previous models

Co-author:(中科院一区、TOP期刊) Han Z., Chen G.Q., et al.

Document Code:https://doi.org/10.1016/j.enggeo.2015.02.009

Document Type:J

Volume:190

Page Number:52-64

Translation or Not:no

Date of Publication:2015-05-14