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A Comparison Between Two Kinematic Wave Solutions for Movement of Debris Flows

by M. Arattano, CNR IRPI, Torino, Italy,
W. Z. Savage, CNR IRPI, Torino, Italy,



Document Type: Proceeding Paper

Part of: Hydraulic Engineering

Abstract:

We compare an asymptotic kinematic wave solution for movement of debris flows with a solution obtained by the method of characteristics. The differences between the two solutions in the field of applicability of the theory are negligible for wide rectangular channels but increase for narrow channels. The two solutions converge for large elapsed times after debris-flow initiation.

Subject Headings: Kinematic waves | Solids flow | Debris | Unsteady flow | Sediment transport | Channels (waterway) | Channel flow

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