期刊
PHYSICAL REVIEW E
卷 90, 期 1, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevE.90.013008
关键词
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资金
- ANR [ANR-12-279-BS09-0021-01]
- Region Nord Pas de Calais
Acoustical and optical vortices have attracted great interest due to their ability to capture and manipulate particles with the use of radiation pressure. Here we show that acoustical vortices can also induce axial vortical flow reminiscent of cyclones, whose topology can be controlled by adjusting the properties of the acoustical beam. In confined geometry, the phase singularity enables generating attractive streaming with the flow directed toward the transducer. This opens perspectives for contactless vortical flow control.
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