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CFD Simulation of Surge Wave Generated by Flow-Like Landslides
Authors: Liu-Chao Qiu
Abstract:The damage caused by surge waves generated in water bodies by flow-like landslides can be very high in terms of human lives and economic losses. The complicated phenomena occurred in this highly unsteady process are difficult to model because three interacting phases: air, water and sediment are involved. The problem therefore is challenging since the effects of non-Newtonian fluid describing the rheology of the flow-like landslides, multi-phase flow and free surface have to be included in the simulation. In this work, the commercial computational fluid dynamics (CFD) package FLUENT is used to model the surge waves due to flow-like landslides. The comparison between the numerical results and experimental data reported in the literature confirms the accuracy of the method.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1112159Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 986
 Quecedo M, Pastor M, Herreros MI. Numerical modelling of impulse wave generated by fast landslides. International journal for numerical methods in engineering 2004; 12: 1633-1656.
 Jakob M, Hungr O (eds). Debris-flow Hazard and Related Phenomena. Springer: Berlin, 2005; 739.
 Pastor M, Quecedo M, Fern´andez Merodo JA, Herreros MI, Gonz´alez E, Mira P. Modelling tailing dams and mine waste dumps failures. Geotechnique 2002; LII(8):579–592.
 Huang X, Garca M. A perturbation solution for Bingham-plastic mud flows. ASCE Journal of Hydraulic Engineering 1997; 120:1350-1363.
 Jiang L, LeBlond PH. Numerical modeling of an underwater Bingham plastic mudslide and the waves which it generates. Journal of Geophysical Research 1993; 98 :10303–10317.
 Trunk FJ, Dent JD, Lang TE. Computer modeling of large rock slides: Journal of Geotechnical Engineering 1986; 112 (3):348–360.
 Mei CC, Liu KF. Approximate equations for the slow spreadingof a thin sheet of Bingham plastic fluid. Physics of Fluids 1990; 2:30–36.
 Savage SB, Hutter K. The motion of a finite mass of granular material down a rough incline. J. Fluid Mech. 1989; 199:177-215.
 Walder JS, Watts P, Sorensen OE and Janssen K. Tsunami generated by subaerial mass flows. J. Geophysical Res. 2001; 108: 22-36.
 Fritz HM, Hager WH and Minor HE. Near Field Characteristic of Landslide Generated Impulse Waves, J. Waterway, Port, Coast, and Ocean Engrg. 2004; 130:287-302.
 Liu, PLF, Wu TR, Raichlen F, Synolakis CE and Borrero JC. Runup and rundown generated by three-dimensional sliding masses. J. Fluid Mech. 2005; 536:107-144.
 Enet F and Grilli ST. Experimental Study of Tsunami Generation by Three-dimensional Rigid Underwater Landslides, J. Waterway Port Coastal and Ocean Engng. 2007; 6:442-454.
 Heinrich P. Nonlinear water wave generated by submarine and aerial landslides. J. Waterway, Port, Coastal and Ocean Engineering 1992;118(3): 249-266.
 Monaghan JJ, Kos A, Issa N. Fluid motion generated by impact. Journal of the Waterway, Port, Coastal, and Ocean Engineering (ASCE) 2003; 129:250–259.
 Qiu LC. Two-Dimensional SPH Simulations of Landslide-Generated Water Waves. J. Hydr. Engrg. (ASCE) 2008; 5(134): 668-671.
 Fluent. Fluent 6.3 user’s guide. Lebanon: New Hampshire (USA) Fluent Inc.;2006.
 Rzadkeiwicz SA, Mariotti C, Heinrich P. Numerical simulation of submarine landslides and their hydraulic effects. Journal of Waterway, Port, Coastal, and Ocean Engineering 1997; 123: 149-157.