52 citations · 115 across the 20 of their papers we have counts for
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Optimal control of a swimming robot based on Purcell's microswimmer model
Noam Berkovich Lahav, Oren Wiezel, Yizhar Or
Purcell's swimmer is a well-known planar model of a swimming microorganism, governed by low Reynolds number hydrodynamics, which is comprised of three rigid links connected by actu…
Dynamics of Purcell-type microswimmers with active-elastic joints
Anna Zigelman, Gilad Ben Zvi, Yizhar Or
Purcell's planar three-link microswimmer is a classic model of swimming in low-Reynolds-number fluid, inspired by motion of flagellated microorganisms. Many works analyzed this mod…
Nonlinear dynamics and bifurcations of a planar undulating magnetic microswimmer
Jithu Paul, Yizhar Or, Oleg Gendelman
Swimming micro-organisms such as flagellated bacteria and sperm cells have fascinating locomotion capabilities. Inspired by their natural motion, there is an ongoing effort to deve…
Lamb-type solution and properties of unsteady Stokes equations
Itzhak Fouxon, Alexander Leshansky, Boris Rubinstein +1
We derive the general solution of the unsteady Stokes equations for an unbounded fluid in spherical polar coordinates, in both time and frequency domains. The solution is an expans…
Viscous flow-fields in hyperelastic Chambers
Eran Ben-Haim, Dotan Ilssar, Yizhar Or +1
Viscous flows in hyperelastic chambers are relevant to many biological phenomena such as inhalation into the lung's acinar region and medical applications such as the inflation of…
Leveraging viscous peeling in soft actuators and reconfigurable microchannel networks
Lior Salem, Benny Gamus, Yizhar Or +1
The research fields of microfluidics and soft robotics both involve complex small-scale internal channel networks, embedded within a solid structure. This work examines leveraging…
Energy-optimal strokes for multi-link microswimmers: Purcell's loops and Taylor's waves reconciled
François Alouges, Antonio DeSimone, Laetitia Giraldi +2
Micron-scale swimmers move in the realm of negligible inertia, dominated by viscous drag forces. In this paper, we formulate the leading-order dynamics of a slender multi-link (N-l…
Inertial self-propulsion of spherical microswimmers by rotation-translation coupling
Itzhak Fouxon, Yizhar Or
We study swimming of small spherical particles who regulate fluid flow on their surface by applying tangential squirming strokes. We derive translational and rotational velocities…
Planar Multi-link Swimmers: Experiments and Theoretical Investigation Using "Perfect Fluid" Model
Evgenia Virozub, Oren Wiezel, Alon Wolf +1
Robotic swimmers are currently a subject of extensive research and development for several underwater applications. Clever design and planning must rely on simple theoretical model…
Nonlinear parametric excitation effect induces stability transitions in swimming direction of flexible superparamagnetic microswimmers
Yuval Harduf, Dongdong Jin, Yizhar Or +1
Microscopic artificial swimmers have recently become highly attractive due to their promising potential for biomedical applications. The pioneering work of Dreyfus et al (2005) has…
Optimization and small-amplitude analysis of Purcell's three-link microswimmer model
Oren Wiezel, Yizhar Or
This work studies the motion of Purcell's three-link microswimmer in viscous flow, by using perturbation expansion of its dynamics under small-amplitude strokes. Leading-order expr…