Swarming and Swirling in Self-Propelled Polar Granular Rods

by: Arshad Kudrolli, Geoffroy Lumay, Dmitri Volfson, Lev S Tsimring

Physical Review Letters, Vol. 100, No. 5. (2008)

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Abstract

Using experiments with anisotropic vibrated rods and quasi-2D numerical simulations, we show that shape plays an important role in the collective dynamics of self-propelled (SP) particles. We demonstrate that SP rods exhibit local ordering, aggregation at the side walls, and clustering absent in round SP particles. Furthermore, we find that at sufficiently strong excitation SP rods engage in a persistent swirling motion in which the velocity is strongly correlated with particle orientation.

@article{citeulike:2431500, abstract = {Using experiments with anisotropic vibrated rods and quasi-2D numerical simulations, we show that shape plays an important role in the collective dynamics of self-propelled (SP) particles. We demonstrate that SP rods exhibit local ordering, aggregation at the side walls, and clustering absent in round SP particles. Furthermore, we find that at sufficiently strong excitation SP rods engage in a persistent swirling motion in which the velocity is strongly correlated with particle orientation.}, author = {Kudrolli, Arshad and Lumay, Geoffroy and Volfson, Dmitri and Tsimring, Lev S. }, citeulike-article-id = {2431500}, doi = {http://dx.doi.org/10.1103/PhysRevLett.100.058001}, journal = {Physical Review Letters}, keywords = {swarming}, number = {5}, posted-at = {2008-02-26 22:07:52}, priority = {2}, publisher = {APS}, title = {Swarming and Swirling in Self-Propelled Polar Granular Rods}, url = {http://dx.doi.org/10.1103/PhysRevLett.100.058001}, volume = {100}, year = {2008} }

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TY - JOUR ID - citeulike:2431500 L3 - citeulike-article-id:2431500 TI - Swarming and Swirling in Self-Propelled Polar Granular Rods JF - Physical Review Letters VL - 100 IS - 5 PB - APS N2 - Using experiments with anisotropic vibrated rods and quasi-2D numerical simulations, we show that shape plays an important role in the collective dynamics of self-propelled (SP) particles. We demonstrate that SP rods exhibit local ordering, aggregation at the side walls, and clustering absent in round SP particles. Furthermore, we find that at sufficiently strong excitation SP rods engage in a persistent swirling motion in which the velocity is strongly correlated with particle orientation. KW - swarming AU - Kudrolli, Arshad AU - Lumay, Geoffroy AU - Volfson, Dmitri AU - Tsimring, Lev PY - 2008/// UR - http://dx.doi.org/10.1103/PhysRevLett.100.058001 ER -

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