Motion of Floating Markers on the Surface of a Vortex Funnel

The specific features of the motion of markers placed on the free surface of a vortex funnel formed by rotation of water in a cylindrical tank are studied experimentally and theoretically. The time dependence of the angular and radial coordinates of marker’s centers of mass, as well as the dependenc...

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Bibliographic Details
Published in:Fluid dynamics 2022-12, Vol.57 (6), p.736-749
Main Authors: Chaplina, T. O., Kistovich, A. V.
Format: Article
Language:English
Subjects:
Classical and Continuum Physics
Classical Mechanics
Cylindrical tanks
Dependence
Engineering Fluid Dynamics
Fluid- and Aerodynamics
Free surfaces
Physics
Physics and Astronomy
Rotation
Vortices
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Summary:The specific features of the motion of markers placed on the free surface of a vortex funnel formed by rotation of water in a cylindrical tank are studied experimentally and theoretically. The time dependence of the angular and radial coordinates of marker’s centers of mass, as well as the dependence of the marker rotation about its own axis on the angle of rotation of its center of mass about the vertical axis of vortex flow, are measured. The mathematical model of the motion of a solid marker of an arbitrary shape is proposed. The results of theoretical calculations are in good agreement with experimental data.
ISSN:0015-4628
1573-8507
DOI:10.1134/S001546282260105X