ABSTRACT
P. Vollmöller Ecole Polytechnique Fédérale de Lausanne, Switzerland
A. Dedner Institute for Applied Mathematics University Freiburg, Germany
C. Ancey Ecole Polytechnique Fédérale de Lausanne, Switzerland
ABSTRACT: The Savage-Hutter (SH) equations for dry granular flows are a system of hyperbolic balance laws, which is based on a Coulomb friction approach for the description of internal failure and basal sliding and determines the time-dependent behavior of depth and depth-integrated velocity components in a terrain following coordinate system. In this paper we present results derived with a new numerical model, operating in the finite-volume context with a shock-capturing wave-propagation method. The numerical model is applied on a laboratory test problem, a dry granular avalanche down an irregular topography and compared against the corresponding laboratory experiments.
