(83e) Capillary Interaction in DEM Simulations of Wet Particulate Materials
In the present work, microscopic models of particle-particle capillary interaction for inclusion in advanced DEM simulations are investigated. Liquid bridge formation, interaction force, stability and rupture are investigated as a function of the liquid volume, liquid wetting properties (e.g. contact angle), particle separation distance, particle size ratio. The extensive set of results are obtained adopting a rigorous computation of the equilibrium bridge shape and characteristics. Comparison with existing approaches, such as the toroidal approximation, will be finally presented.