Non-axisymmetric flow excited by fluid oscillations in a rotating cylinder with sloping ends

Fluid flow in non-uniform rotating (librating) cylinder with sloping ends is experimentally investigated. Periodical changes in the rotation rate lead to the appearance of inertial oscillations of the fluid. Due to the azimuthal inhomogeneity of the geometry of the ends, inertial oscillations are no...

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Bibliographic Details
Published in:Journal of physics. Conference series 2021-02, Vol.1809 (1), p.12015
Main Author: Subbotin, Stanislav
Format: Article
Language:English
Subjects:
Axisymmetric flow
Fluid dynamics
Fluid flow
Inhomogeneity
Nonaxisymmetric flow
Nonlinear response
Oscillations
Physics
Rotating cylinders
Rotating fluids
Steady flow
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Summary:Fluid flow in non-uniform rotating (librating) cylinder with sloping ends is experimentally investigated. Periodical changes in the rotation rate lead to the appearance of inertial oscillations of the fluid. Due to the azimuthal inhomogeneity of the geometry of the ends, inertial oscillations are non-axisymmetric. The most intense pulsating motion of the fluid is observed at the frequency corresponding to the mode {1, 1, 1}, which is a global single-vortex flow. As a result of the nonlinear response, a non-axisymmetric steady flow arises along the cavity side wall.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/1809/1/012015