4 papers
Universal square-root-log scaling for slender-body end effects
Gunnar Peng, Ory Schnitzer
The charge on a conducting cylinder becomes uniformly distributed at large aspect ratios, albeit very slowly and with nonuniformity persisting near the ends. We show that the charg…
Slip over liquid-infused gratings in the singular limit of a nearly inviscid lubricant
Gunnar G. Peng, Ehud Yariv, Ory Schnitzer
We consider shear-driven longitudinal flow of an exterior fluid over a periodic array of rectangular grooves filled with an immiscible interior fluid (the "lubricant"), the grooves…
Bistability and charge-density blowup in the onset of drop Quincke rotation
Gunnar G. Peng, Ory Schnitzer
Particles in a sufficiently strong electric field spontaneously rotate, provided that charge relaxation is slower in the particle than in the suspending fluid. It has long been kno…
Equatorial blowup and polar caps in drop electrohydrodynamics
Gunnar G. Peng, Rodolfo Brandao, Ehud Yariv +1
We illuminate effects of surface-charge convection intrinsic to leaky-dielectric electrohydrodynamics by analyzing the symmetric steady state of a circular drop in an external fiel…