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Magnetohydrodynamic self-propulsion of active matter agents

Abstract : Self-propelled particles, based on the magnetohydrodynamic acceleration of the surrounding fluid, are proposed for application as active matter agents. When the particle is resonantly excited by an electromagnetic wave, the scattered electric field induces currents in the surrounding fluid, which interact with the scattered magnetic field, thus producing a thrust. The time-averaged force is generally nonzero and can provide steady motion. Both orientation of the particle and direction of motion can be controlled by the radiation frequency and polarization. The concept has been studied analytically and through simulations showing its feasibility.
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https://hal.univ-lorraine.fr/hal-03043513
Contributor : Maria Vanessa Fierro Pastor <>
Submitted on : Saturday, December 19, 2020 - 5:02:49 PM
Last modification on : Thursday, February 25, 2021 - 11:05:04 AM

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Alexander Zharov, Vanessa Fierro, Alain Celzard. Magnetohydrodynamic self-propulsion of active matter agents. Applied Physics Letters, American Institute of Physics, 2020, 117 (10), pp.104101. ⟨10.1063/5.0018692⟩. ⟨hal-03043513⟩

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