DebrisInterMixing-2.3: a Finite Volume solver for three dimensional debris flow simulations based on a single calibration parameter – Part 2: Model validation
- 1Department of Environmental Systems Science, Swiss Federal Institute of Technology Zurich ETHZ, CHN H41 8092 Zürich, Switzerland
- 2Helmholtz-Centre Potsdam GFZ German Research Center for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
- 3Swiss Federal Research Institute WSL, Zürcherstrasse 111 8903 Birmensdorf, Switzerland
- 4Department of Geotechnical Engineering and Geosciences, Technical University of Catalonia UPC, Jordi Girona, 1-3 (D2) 08034 Barcelona, Spain
- 5Institute of Mountain Risk Engineering, BOKU, Peter-Jordan-Straße 82, 1190 Vienna, Austria
- 1Department of Environmental Systems Science, Swiss Federal Institute of Technology Zurich ETHZ, CHN H41 8092 Zürich, Switzerland
- 2Helmholtz-Centre Potsdam GFZ German Research Center for Geosciences, Telegrafenberg, 14473 Potsdam, Germany
- 3Swiss Federal Research Institute WSL, Zürcherstrasse 111 8903 Birmensdorf, Switzerland
- 4Department of Geotechnical Engineering and Geosciences, Technical University of Catalonia UPC, Jordi Girona, 1-3 (D2) 08034 Barcelona, Spain
- 5Institute of Mountain Risk Engineering, BOKU, Peter-Jordan-Straße 82, 1190 Vienna, Austria
Correspondence: A. von Boetticher (albrecht.vonboetticher@usys.ethz.ch)
Hide author detailsAbstract. Here we present the validation of the fluid dynamic solver presented in part one of this work (von Boetticher et al., 2015), simulating laboratory-scale and large-scale debris-flow experiments. The material properties of the experiments, including water content, sand content, clay content and its mineral composition, and gravel content and its friction angle, were known. We show that given these measured properties, a single free model parameter is sufficient for calibration, and a range of experiments with different material compositions can be reproduced by the model without recalibration. The model validation focuses on different case studies illustrating the sensitivity of debris flows to water and clay content, channel curvature, channel roughness and the angle of repose of the gravel. We characterize the accuracy of the model using experimental observations of flow head positions, front velocities, run-out patterns and basal pressures.
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A. von Boetticher et al.
Interactive discussion


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RC C2383: 'peer review comments by Richard Iverson', Richard Iverson, 03 Oct 2015
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EC C4433: 'Editorial Comment', Jeffrey Neal, 02 Dec 2016
Interactive discussion


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RC C2383: 'peer review comments by Richard Iverson', Richard Iverson, 03 Oct 2015
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EC C4433: 'Editorial Comment', Jeffrey Neal, 02 Dec 2016
A. von Boetticher et al.
A. von Boetticher et al.
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Cited
3 citations as recorded by crossref.
- DebrisInterMixing-2.3: a finite volume solver for three-dimensional debris-flow simulations with two calibration parameters – Part 1: Model description A. von Boetticher et al. 10.5194/gmd-9-2909-2016
- An integrated method for rapid estimation of the valley incision by debris flows Z. Han et al. 10.1016/j.enggeo.2017.11.007
- Development of a mathematical model for submarine granular flows P. Si et al. 10.1063/1.5030349
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