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Numerical simulation of the debris flow dynamics with an upwind scheme and specific friction treatment

AuthorsSánchez Burillo, Guillermo ; Beguería, Santiago ; Latorre Garcés, Borja ; Burguete Tolosa, Javier
Issue Date27-Apr-2014
CitationEuropean Geosciences Union General Assembly (27-4 a 2-5, 2014. Viena, Austria)
AbstractDebris flows, snow and rock avalanches, mud and earth flows are often modeled by means of a particular realization of the so called shallow water equations (SWE). Indeed, a number of simulation models have been already developed [1], [2], [3], [4], [5], [6], [7]. Debris flow equations differ from shallow water equations in two main aspects. These are (a) strong bed gradient and (b) rheology friction terms that differ from the traditional SWE. A systematic analysis of the numerical solution of the hyperbolic system of equations rising from the shallow water equations with different rheological laws has not been done. Despite great efforts have been done to deal with friction expressions common in hydraulics (such as Manning friction), landslide rheologies are characterized by more complicated expressions that may deal to unphysical solutions if not treated carefully.
Appears in Collections:(EEAD) Comunicaciones congresos
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