TY - JOUR
T1 - Sph-dem coupling for debris flows
AU - Trujillo-Vela, Mario Germán
AU - Galindo-Torres, Sergio Andrés
AU - Zhang, Xue
AU - Ramos-Cañón, Alfonso Mariano
AU - Escobar-Vargas, Jorge Alberto
N1 - Publisher Copyright:
© 2021, Univelt Inc., All rights reserved.
PY - 2021
Y1 - 2021
N2 - Debris flows are natural events with a high potential of damage due to the materials, volume, and velocity they can reach once the flows were triggered. Mathematical models and numerical schemes constitute a transcendental way to get a deeper comprehension of these natural phenomena. Thus, the coupling of numerical methods is becoming more relevant to describe the behaviour of debris flows. The coupling of Smooth Particle Hydrodynamics (SPH) and Discrete Element Method (DEM) is presented in this work to show the capability to represent the interaction of several materials simultaneously. SPH is employed to represent the fluid and soil by using different constitutive models, from a continuum approach. On the other hand, DEM describes immersed objects to represent large boulders and unmoveable boundary conditions. Thus, it is possible to couple the behaviour occurring at very different scales, fines and water through the continuum approach, and boulders with the discrete one. A hypothetical case here presented shows the potential of our coupling method for simulating debris flows.
AB - Debris flows are natural events with a high potential of damage due to the materials, volume, and velocity they can reach once the flows were triggered. Mathematical models and numerical schemes constitute a transcendental way to get a deeper comprehension of these natural phenomena. Thus, the coupling of numerical methods is becoming more relevant to describe the behaviour of debris flows. The coupling of Smooth Particle Hydrodynamics (SPH) and Discrete Element Method (DEM) is presented in this work to show the capability to represent the interaction of several materials simultaneously. SPH is employed to represent the fluid and soil by using different constitutive models, from a continuum approach. On the other hand, DEM describes immersed objects to represent large boulders and unmoveable boundary conditions. Thus, it is possible to couple the behaviour occurring at very different scales, fines and water through the continuum approach, and boulders with the discrete one. A hypothetical case here presented shows the potential of our coupling method for simulating debris flows.
KW - Debris flows simulation
KW - SPH-DEM coupling
KW - Three-phases model
UR - http://www.scopus.com/inward/record.url?scp=85122085015&partnerID=8YFLogxK
U2 - 10.23967/wccm-eccomas.2020.316
DO - 10.23967/wccm-eccomas.2020.316
M3 - Conference article
AN - SCOPUS:85122085015
SN - 2696-6999
VL - 1600
SP - 1
EP - 12
JO - World Congress in Computational Mechanics and ECCOMAS Congress
JF - World Congress in Computational Mechanics and ECCOMAS Congress
T2 - 14th World Congress of Computational Mechanics and ECCOMAS Congress, WCCM-ECCOMAS 2020
Y2 - 11 January 2021 through 15 January 2021
ER -