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Particle orbiting motion and deviations from streamlines in a microvortex
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DOI：10.1063/5.0074939.png)
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Particle orbiting motion in a confined microvortex is a fascinating phenomenon of fluid mechanics. In this Letter, we quantitatively measured the motion of a neutrally buoyant spherical particle with finite size, which recirculates along a ring-shaped orbit periodically in a microvortex at the Reynolds number of 303. The particle dynamics have been characterized along the orbit, which can be divided into accelerating, swerving, and following phases. By comparing the relationship between the particle and streamlines, the deviations of their trajectories and velocities have been revealed. The results could provide a deep insight into the physics of particle dynamics and particle-fluid interactions.
Keyword:
RIGID SPHERE
FLOW
VELOCIMETRY
MIGRATION
期刊
IF:
3.6
论文数:
10.4W
被引数:
17.8W
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