@inproceedings{07c33cbd3e6c40a5804ac8266f31169b,
title = "Segregation of cohesive powders in a vibrated granular bed",
abstract = "The segregation behavior of cohesive powders in a vibrated granular bed is studied by both experiment and simulation. The discrete element method (DEM) incorporating a simplified model of dynamic bridge strength based on the superposition of lubrication and a circular approximation is employed. The rise time of large intruders with various size and density is recorded to calculate the segregation rate. Both experimental and simulation results show that the presence of convection has a strong influence on the rise time of an intruder. As the size ratio remains constant, the segregation rate of cohesive powders is strongly dependent on the intruder density. A non-monotonic dependence of the rise time is found as a function of the density ratio. The rise time of an intruder exhibits a pronounced peak as the density ratio approaches 0.5. The segregation is also strongly influenced by the cohesion force due to liquid bridges. Finally, experimental and simulation results are compared to theoretical predictions.",
author = "Yang, {S. C.} and Hsiau, {S. S.}",
note = "Funding Information: The author gratefully acknowledges the financial support from the National Science Council of the ROC for this work through project NSC 92-2212-E-270-005. ; 5th International Conference on the Micromechanics of Granular Media: Powders and Grains 2005 ; Conference date: 18-07-2005 Through 22-07-2005",
year = "2005",
language = "???core.languages.en_GB???",
isbn = "0415383471",
series = "Powders and Grains 2005 - Proceedings of the 5th International Conference on Micromechanics of Granular Media",
pages = "579--582",
booktitle = "Powders and Grains 2005 - Proceedings of the 5th International Conference on Micromechanics of Granular Media",
}