7 papers · 1 filter
Effective longitudinal slip over grooves encapsulated by a nearly inviscid lubricant
Ory Schnitzer, Ehud Yariv
We calculate the effective slip length for a rectangularly grooved periodic surface encapsulated (i.e., fully wetted) by a lubricant fluid and subjected to exterior shear flow para…
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…
Giant superhydrophobic slip of shear-thinning liquids
Ory Schnitzer, Prasun K. Ray
We theoretically illustrate how complex fluids flowing over superhydrophobic surfaces may exhibit giant flow enhancements in the double limit of small solid fractions () an…
Onset of spontaneous beating and whirling in the follower force model of an active filament
Ory Schnitzer
We study the onset of spontaneous dynamics in the follower force model of an active filament, wherein a slender elastic filament in a viscous liquid is clamped normal to a wall at…
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…