64 citations · 344 across the 20 of their papers we have counts for
11 papers · 1 filter
Complex nonlinear dynamics of area-preserving, active vesicles
Reiner Kree, Annette Zippelius
We investigate the nonlinear shape dynamics and autonomous propulsion of actively driven quasi-spherical vesicles with locally inextensible membranes at low Reynolds number. Starti…
Amoeboid swimming of active vesicles
Reiner Kree, Annette Zippelius
We investigate the shape dynamics and migration of weakly deflated active vesicles driven by processes acting either directly in the membrane or transmitted by the cytoskeleton. Fo…
Amoeboid propulsion of active solid bodies, vesicles and droplets: a comparison
Reiner Kree, Annette Zippelius
We present a unified discussion of three types of near-spherical amoeboid microswimmers, driven by periodic, axially symmetric, achiral deformations (swim strokes): a solid deforma…
Deformations of an active liquid droplet
Reiner Kree, Annette Zippelius
A fluid droplet in general deforms, if subject to active driving, such as a finite slip velocity or active tractions on its interface. We show that these deformations and their dyn…
Mobilities of a drop and an encapsulated squirmer
Reiner Kree, Annette Zippelius
We have analyzed the dynamics of a spherical, uni-axial squirmer which is located inside a spherical liquid drop at general position . The squirmer is subject to an exter…
Trajectories of a droplet driven by an internal active device
Leon Rueckert, Annette Zippelius, Reiner Kree
We consider a liquid droplet which is propelled solely by internal flow. In a simple model, this flow is generated by an autonomous actuator, which moves on a prescribed trajectory…