Two dimensional schematic flow of the contact-propagation-separation motion with charge distribution simulations.
Two dimensional schematic flow of the contact-propagation-separation motion with charge distribution simulations. (a) Initial contact between the flag and plate (charge generation) without external flow. (b and c) Decreasing contact area via external flow (in-plane charge separation). (d) Maximum amplitude of fluttering motion. (e) Flag approaching and then contacting the plate. (f) Increase in contact area.