Herrmann, Hans J.
- Journal Article
Rights / licenseCreative Commons Attribution 4.0 International
We investigate the electrostatic charging of an agitated bed of identical grains using simulations, mathematical modeling, and experiments. We simulate charging with a discrete-element model including electrical multipoles and find that infinitesimally small initial charges can grow exponentially rapidly. We propose a mathematical Turing model that defines conditions for exponential charging to occur and provides insights into the mechanisms involved. Finally, we confirm the predicted exponential growth in experiments using vibrated grains under microgravity, and we describe novel predicted spatiotemporal states that merit further study. Show more
Journal / seriesScientific Reports
Pages / Article No.
PublisherNature Publishing Group
SubjectSoft materials; Nonlinear phenomena
Organisational unit03733 - Herrmann, Hans Jürgen (emeritus) / Herrmann, Hans Jürgen (emeritus)
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