TY  - JOUR
AU  - Isele-Holder, Rolf
AU  - Jäger, Julia
AU  - Saggiorato, Guglielmo
AU  - Elgeti, Jens
AU  - Gompper, Gerhard
TI  - Dynamics of self-propelled filaments pushing a load
JO  - Soft matter
VL  - 12
IS  - 41
SN  - 1744-6848
CY  - London
PB  - Royal Soc. of Chemistry
M1  - FZJ-2016-05824
SP  - 8495 - 8505
PY  - 2016
AB  - Worm-like filaments, which are propelled by a tangential homogeneous force along their contour, are studied as they push loads of different shapes and sizes. The resulting dynamics is investigated using Langevin dynamics simulations. The effects of size and shape of the load, propulsion strength, and thermal noise are systematically explored. The propulsive force and hydrodynamic friction of the load cause a compression in the filament that results in a buckling instability and versatile motion. Distinct regimes of elongated filaments, curved filaments, beating filaments, and filaments with alternating beating and circular motion are identified, and a phase diagram depending on the propulsion strength and the size of the load is constructed. Characteristic features of the different phases, such as beating frequencies and rotational velocities, are demonstrated to have a power-law dependence on the propulsive force.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000386247100005
C6  - pmid:27759125
DO  - DOI:10.1039/C6SM01094F
UR  - https://juser.fz-juelich.de/record/820540
ER  -