Stresslets Induced by Active Swimmers

Abstract : Active particles disturb the fluid around them as force dipoles, or stresslets, which govern their collective dynamics. Unlike swimming speeds, the stresslets of active particles are rarely determined due to the lack of a suitable theoretical framework for arbitrary geometry. We propose a general method, based on the reciprocal theorem of Stokes flows, to compute stresslets as integrals of the velocities on the particle's surface, which we illustrate for spheroidal chemically active particles. Our method will allow tuning the stresslet of artificial swimmers and tailoring their collective motion in complex environments.
Complete list of metadatas

Cited literature [45 references]  Display  Hide  Download
Contributor : Sébastien Michelin <>
Submitted on : Friday, April 19, 2019 - 5:00:41 PM
Last modification on : Friday, May 10, 2019 - 1:36:47 AM


Publisher files allowed on an open archive



Eric Lauga, Sébastien Michelin. Stresslets Induced by Active Swimmers. Physical Review Letters, American Physical Society, 2016, 117 (14), ⟨10.1103/PhysRevLett.117.148001⟩. ⟨hal-02104855⟩



Record views


Files downloads