Instability of the Flow in a Spherical Layer under Torsional Oscillations of the Inner Boundary
- Authors: Zhilenko D.Y.1, Krivonosova O.E.1
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Affiliations:
- Institute of Mechanics
- Issue: Vol 44, No 6 (2018)
- Pages: 457-460
- Section: Article
- URL: https://journals.rcsi.science/1063-7850/article/view/207681
- DOI: https://doi.org/10.1134/S1063785018060147
- ID: 207681
Cite item
Abstract
The instability of viscous incompressible fluid flows caused in a thin spherical layer by torsional oscillations of the inner sphere in a thin spherical layer with respect to the sate of rest is studied numerically. It has been established that an increase in the frequency of torsional oscillations leads to a change in the mode of the instability, with a transition from secondary flows in the form of Taylor vortices to structures not observed earlier. The revealed instability is observed in the frequency range from 0.61 to 2.45 Hz or, if the wavelengths are taken relative to the layer thickness, from 0.67 to 1.33.
About the authors
D. Yu. Zhilenko
Institute of Mechanics
Email: jilenko@imec.msu.ru
Russian Federation, Moscow, 119899
O. E. Krivonosova
Institute of Mechanics
Author for correspondence.
Email: jilenko@imec.msu.ru
Russian Federation, Moscow, 119899