Abstract
Packing of charged micron-sized particles is investigated using discrete element simulations based on adhesive contact dynamic models. The formation process and the final obtained structures of ballistic packings are studied to show the effect of interparticle Coulomb force. It is found that increasing the charge on particles causes a remarkable decrease of the packing volume fraction and the average coordination number, indicating a looser and chainlike structure. Force scaling analysis shows that the long-range Coulomb interaction changes packing structures through its influence on the particle inertia before they are bonded into the force networks. Once the contact network are formed, the expansion effect caused by the repulsive Coulomb forces are inhibited by the short-range adhesion. Based on abundant results from simulations, a dimensionless adhesion parameter, Ad, which combines the effects of the particle inertia, the short-range adhesion and the long-range Coulomb interaction, is proposed, which successfully scales the packing results for micron particles
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
