TY - GEN
T1 - Simplified multi-sphere model-based DEM simulation of particle behavior in hopper during ship loading for dust control
AU - Tan, Yuan
AU - Günthner, Willibald A.
AU - Kessler, Stephan
N1 - Publisher Copyright:
© Springer Science+Business Media Singapore 2017.
PY - 2017
Y1 - 2017
N2 - In conventional ship loading with hopper, dust dispersion is a major cause of material waste and air pollution. Just as the discharge of bulk material in frequently used silo, two factors, air entrainment and particle velocity at the orifice significantly contribute to dust emission during downstream flow of free-falling particles. This study is dedicated to simulate particle behavior until approaching the hopper orifice. To improve computational efficiency, simplified multi-sphere model should be used rather than relatively accurate particle representation for actual material. However, in the pertinent literatures the degree of approximation to the particle surface for a reliable analysis of the two mentioned factors was still not documented. The objective of this paper is to evaluate the performance of different simplification methods in DEM (Discrete Element Method) simulation by testing various combinations of parameters (i.e. size, number and position of spheres), and, therefore to select a suitable particle model, based on which, the results of simulation can be used to predict granular flow after the orifice within acceptable computational time.
AB - In conventional ship loading with hopper, dust dispersion is a major cause of material waste and air pollution. Just as the discharge of bulk material in frequently used silo, two factors, air entrainment and particle velocity at the orifice significantly contribute to dust emission during downstream flow of free-falling particles. This study is dedicated to simulate particle behavior until approaching the hopper orifice. To improve computational efficiency, simplified multi-sphere model should be used rather than relatively accurate particle representation for actual material. However, in the pertinent literatures the degree of approximation to the particle surface for a reliable analysis of the two mentioned factors was still not documented. The objective of this paper is to evaluate the performance of different simplification methods in DEM (Discrete Element Method) simulation by testing various combinations of parameters (i.e. size, number and position of spheres), and, therefore to select a suitable particle model, based on which, the results of simulation can be used to predict granular flow after the orifice within acceptable computational time.
UR - https://www.scopus.com/pages/publications/85007284272
U2 - 10.1007/978-981-10-1926-5_137
DO - 10.1007/978-981-10-1926-5_137
M3 - Conference contribution
AN - SCOPUS:85007284272
SN - 9789811019258
T3 - Springer Proceedings in Physics
SP - 1335
EP - 1342
BT - Proceedings of the 7th International Conference on Discrete Element Methods
A2 - Li, Xikui
A2 - Feng, Yuntian
A2 - Mustoe, Graham
PB - Springer Science and Business Media, LLC
T2 - 7th International Conference on Discrete Element Methods, DEM7 2016
Y2 - 1 August 2016 through 4 August 2016
ER -