Continuum-Mechanics-Based Rheological Formulation for Debris Flow

by Cheng-lung Chen, U.S. Geological Survey, Menlo Park, United States,
Chi-Hai Ling, U.S. Geological Survey, Menlo Park, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


This paper aims to assess the validity of the generalized viscoplastic fluid (GVF) model in the light of both the classical relative-viscosity versus concentration relation and the dimensionless stress versus shear-rate squared relations based on kinetic theory, thereby addressing how to evaluate the rheological parameters of the GVF model using Bagnold's data.

Subject Headings: Rheology | Debris | Solids flow | Fluid flow | Sediment transport | Shear stress | Parameters (statistics) | Kinetics

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