D-Claw swMATH ID: 21531 Software Authors: George, David L.; Iverson, Richard M. Description: A depth-averaged debris-flow model that includes the effects of evolving dilatancy. II: Numerical predictions and experimental tests. We evaluate a new depth-averaged mathematical model that is designed to simulate all stages of debris-flow motion, from initiation to deposition. A companion paper shows how the model’s five governing equations describe simultaneous evolution of flow thickness, solid volume fraction, basal pore-fluid pressure and two components of flow momentum. Each equation contains a source term that represents the influence of state-dependent granular dilatancy. Here, we recapitulate the equations and analyse their eigenstructure to show that they form a hyperbolic system with desirable stability properties. To solve the equations, we use a shock-capturing numerical scheme with adaptive mesh refinement, implemented in an open-source software package we call D-Claw. As tests of D-Claw, we compare model output with results from two sets of large-scale debris-flow experiments. One set focuses on flow initiation from landslides triggered by rising pore-water pressures, and the other focuses on downstream flow dynamics, runout and deposition. D-Claw performs well in predicting evolution of flow speeds, thicknesses and basal pore-fluid pressures measured in each type of experiment. Computational results illustrate the critical role of dilatancy in linking coevolution of the solid volume fraction and pore-fluid pressure, which mediates basal Coulomb friction and thereby regulates debris-flow dynamics.par For part I, see []. Homepage: https://github.com/dlgeorge/D-Claw Source Code: https://github.com/dlgeorge/D-Claw Related Software: HE-E1GODF; GEOCLAW; PVM; CLAWPACK; chammp; ReALE; Chemotaxis; SedFoam; MPAS-Ocean; SWASHES; HLLE; VisIt; CUDA; TENSOR; GitHub; BayesDA; Optimization Toolbox; Matlab; CitcomS; ma2dfc Cited in: 24 Documents all top 5 Cited by 60 Authors 5 Fernández-Nieto, Enrique Domingo 5 Mangeney, Anne 4 Bouchut, François 4 Narbona-Reina, Gladys 4 Wang, Yongqi 3 Meng, Xiannan 2 Bachini, Elena 2 Garres-Díaz, José 2 George, David L. 2 Gray, John Mark Nicholas Timm 2 Heß, Julian 2 Johnson, Christopher G. 2 Putti, Mario 1 Abreu, Eduardo 1 Bartelt, Perry 1 Bonamy, Cyrille 1 Borman, D. J. 1 Bueler, Edward L. 1 Bühler, Yves 1 Carlino, Michele Giuliano 1 Caviezel, Andrin 1 Chalk, C. M. 1 Chareyre, Bruno 1 Chauchat, Julien 1 Chiou, Min-Ching 1 Delgado Sánchez, Juan M. 1 Dong, Ping 1 Edwards, Andrew N. 1 Gaburro, Elena 1 Hansen, Samantha E. 1 Hoteit, Ibrahim 1 Hsu, Tian-Jian 1 Hutter, Kolumban 1 Ivanova, Kseniya 1 Iverson, Richard M. 1 Jing, Lu 1 Knio, Omar M. 1 Kokelaar, B. P. 1 Koné, El Hadji 1 Kwok, C. Y. 1 Le Maître, Olivier P. 1 Lee, Cheng-Hsien 1 Mandli, Kyle T. 1 Montellà, Eduard Puig 1 Morales de Luna, Tomás 1 Navarro, Maria C. 1 Peakall, J. 1 Perez, John 1 Rocha, Francisco Marcelo M. 1 Shi, Huabin 1 Sleigh, P. A. 1 Sobral, Yuri D. 1 Stowell, Harold H. 1 Sun, Hongguang 1 Tai, Yih-Chin 1 Yu, Xiping 1 Zayernouri, Mohsen 1 Zhang, Yong 1 Zhou, Yan 1 Zhou, Yunlai all top 5 Cited in 14 Serials 6 Journal of Fluid Mechanics 4 Journal of Computational Physics 2 Computers and Fluids 2 Applied Mathematics and Computation 1 Acta Mechanica 1 Computer Methods in Applied Mechanics and Engineering 1 Chaos, Solitons and Fractals 1 Journal of Scientific Computing 1 SIAM Journal on Applied Mathematics 1 Continuum Mechanics and Thermodynamics 1 Proceedings of the Royal Society of London. Series A. Mathematical, Physical and Engineering Sciences 1 European Journal of Mechanics. B. Fluids 1 Computational Geosciences 1 European Series in Applied and Industrial Mathematics (ESAIM): Mathematical Modelling and Numerical Analysis all top 5 Cited in 6 Fields 22 Fluid mechanics (76-XX) 9 Geophysics (86-XX) 6 Numerical analysis (65-XX) 3 Partial differential equations (35-XX) 3 Mechanics of deformable solids (74-XX) 1 Statistics (62-XX) Citations by Year