TY - JOUR
T1 - Impulse-based dynamics for studying quasi-static granular flows
T2 - Application to hopper emptying of non-spherical particles
AU - Toson, Peter
AU - Khinast, Johannes G.
PY - 2017/5/15
Y1 - 2017/5/15
N2 - Impulse-Based dynamics (IBD) have been successfully utilized to describe mechanical systems in robotics and augmented/virtual reality applications for a long time. However, the method received only limited attention in the field of granular flows so far. In this work, a simulation model based on the bullet physics library has been implemented and applied to a model problem, i.e., the hopper discharge of non-spherical particles. The IBD simulations involved various particle shapes (ideal ellipsoids, cylinders and cuboids) with different aspect ratios and friction coefficients. The results have been compared with discrete element method (DEM) simulations and verified by the Beverloo equation.
AB - Impulse-Based dynamics (IBD) have been successfully utilized to describe mechanical systems in robotics and augmented/virtual reality applications for a long time. However, the method received only limited attention in the field of granular flows so far. In this work, a simulation model based on the bullet physics library has been implemented and applied to a model problem, i.e., the hopper discharge of non-spherical particles. The IBD simulations involved various particle shapes (ideal ellipsoids, cylinders and cuboids) with different aspect ratios and friction coefficients. The results have been compared with discrete element method (DEM) simulations and verified by the Beverloo equation.
KW - Discrete element method (DEM)
KW - Granular flow
KW - Hopper emptying
KW - Impulse-based dynamics
KW - Non-spherical particles
UR - http://www.scopus.com/inward/record.url?scp=85015965438&partnerID=8YFLogxK
U2 - 10.1016/j.powtec.2017.03.016
DO - 10.1016/j.powtec.2017.03.016
M3 - Article
AN - SCOPUS:85015965438
SN - 0032-5910
VL - 313
SP - 353
EP - 360
JO - Powder Technology
JF - Powder Technology
ER -