A method for trapping of particles in a wideband vortex acoustic field in air is proposed. The placement of radiators on the surface of a spherical belt with a radial shift, which ensures the formation of a vortex field, is considered. The results of numerical calculations and of experimental studies are presented. It is shown that in a wideband field there is only one point at which a stable trapping of a particle is maintained.
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Translated from Izvestiya Vysshikh Uchebnykh Zavedenii, Fizika, No. 8, pp. 19–23, August, 2022.
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Sukhanov, D.Y., Rosliakov, S.N. Trapping of Particles by a Wideband Vortex Ultrasonic Field. Russ Phys J 65, 1257–1261 (2022). https://doi.org/10.1007/s11182-023-02759-w
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DOI: https://doi.org/10.1007/s11182-023-02759-w