Articles | Volume 10, issue 11
https://doi.org/10.5194/gmd-10-3963-2017
https://doi.org/10.5194/gmd-10-3963-2017
Model evaluation paper
 | 
03 Nov 2017
Model evaluation paper |  | 03 Nov 2017

DebrisInterMixing-2.3: a finite volume solver for three-dimensional debris-flow simulations with two calibration parameters – Part 2: Model validation with experiments

Albrecht von Boetticher, Jens M. Turowski, Brian W. McArdell, Dieter Rickenmann, Marcel Hürlimann, Christian Scheidl, and James W. Kirchner

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Cited articles

Bertolo, P. and Wieczorek, G. F.: Calibration of numerical models for small debris flows in Yosemite Valley, California, USA, Nat. Hazards Earth Syst. Sci., 5, 993–1001, https://doi.org/10.5194/nhess-5-993-2005, 2005.
Christen, M., Bühler, M., Bartelt, P., Leine, R., Glover, J., Schweizer, A., Graf, C., McArdell, B. W., Gerber, W., Deubelbeiss, Y., Feistl, T., and Volkwein, A.: Integral hazard management using a unified software environment: numerical simulation tool “RAMMS” for gravitational natural hazards, in: 12th Congress INTERPRAEVENT, Proceedings Vol. 1, 77–86, International Research Society INTERPRAEVENT, Grenoble, France, 2012.
Deganutti, A., Tecca, P., and Genevois, R.: Characterization of friction angles for stability and deposition of granular material, in: Italian Journal of Engineering and Environment: 5th International Conference on Debris-Flow Hazards: Mitigation, Mechanics, Prediction and Assessment, 313–318, Padua, Italy, 2011.
Domnik, B., Pudasaini, S., Katzenbach, R., and Miller, S.: Coupling of full two-dimensional and depth-averaged models for granular flows, J. Non-Newton. Fluid, 201, 56–68, 2013.
Fischer, J. T., Kowalski, J., and Pudasaini, S.: Topographic curvature effects in applied avalanche modeling, Cold Reg. Sci. Technol., 74, 21–30, https://doi.org/10.1016/j.coldregions.2012.01.005, 2012.
Short summary
The open-source fluid dynamic solver presented in v. Boetticher et al. (2016) combines a Coulomb viscosplastic rheological model with a Herschel–Bulkley model based on material properties for 3-D debris flow simulations. Here, we validate the solver and illustrate the model sensitivity to water content, channel curvature, content of fine material and channel bed roughness. We simulate both laboratory-scale and large-scale debris-flow experiments, using only one of the two calibration parameters.
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