Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder

The dynamics of a low-viscosity fluid inside a rapidly rotating horizontal cylinder were experimentally studied. In the rotating frame, the force of gravity induces azimuthal fluid oscillations at a frequency equal to the velocity of the cylinder’s rotation. This flow is responsible for a series of...

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Main Authors: Veronika Dyakova, Denis Polezhaev
Format: Article
Language:English
Published: Wiley 2016-01-01
Series:Shock and Vibration
Online Access:http://dx.doi.org/10.1155/2016/7162368
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author Veronika Dyakova
Denis Polezhaev
author_facet Veronika Dyakova
Denis Polezhaev
author_sort Veronika Dyakova
collection DOAJ
description The dynamics of a low-viscosity fluid inside a rapidly rotating horizontal cylinder were experimentally studied. In the rotating frame, the force of gravity induces azimuthal fluid oscillations at a frequency equal to the velocity of the cylinder’s rotation. This flow is responsible for a series of phenomena, such as the onset of centrifugal instability in the Stokes layer and the growth of the relief at the interface between the fluid and the granular medium inside the rotating cylinder. The phase inhomogeneity of the oscillatory fluid flow in the viscous boundary layers near the rigid wall and the free surface generates the azimuthal steady streaming. We studied the relative contribution of the viscous boundary layers in the generation of the steady streaming. It is revealed that the velocity of the steady streaming can be calculated using the velocity of the oscillatory fluid motion.
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publishDate 2016-01-01
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series Shock and Vibration
spelling doaj-art-300f0d20bb4a4d94aea30979f35be9ac2025-02-03T01:00:04ZengWileyShock and Vibration1070-96221875-92032016-01-01201610.1155/2016/71623687162368Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating CylinderVeronika Dyakova0Denis Polezhaev1Laboratory of Vibrational Hydromechanics, Perm State Humanitarian Pedagogical University, 24 Sibirskaya Street, Perm 614990, RussiaLaboratory of Vibrational Hydromechanics, Perm State Humanitarian Pedagogical University, 24 Sibirskaya Street, Perm 614990, RussiaThe dynamics of a low-viscosity fluid inside a rapidly rotating horizontal cylinder were experimentally studied. In the rotating frame, the force of gravity induces azimuthal fluid oscillations at a frequency equal to the velocity of the cylinder’s rotation. This flow is responsible for a series of phenomena, such as the onset of centrifugal instability in the Stokes layer and the growth of the relief at the interface between the fluid and the granular medium inside the rotating cylinder. The phase inhomogeneity of the oscillatory fluid flow in the viscous boundary layers near the rigid wall and the free surface generates the azimuthal steady streaming. We studied the relative contribution of the viscous boundary layers in the generation of the steady streaming. It is revealed that the velocity of the steady streaming can be calculated using the velocity of the oscillatory fluid motion.http://dx.doi.org/10.1155/2016/7162368
spellingShingle Veronika Dyakova
Denis Polezhaev
Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
Shock and Vibration
title Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
title_full Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
title_fullStr Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
title_full_unstemmed Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
title_short Oscillatory and Steady Flows in the Annular Fluid Layer inside a Rotating Cylinder
title_sort oscillatory and steady flows in the annular fluid layer inside a rotating cylinder
url http://dx.doi.org/10.1155/2016/7162368
work_keys_str_mv AT veronikadyakova oscillatoryandsteadyflowsintheannularfluidlayerinsidearotatingcylinder
AT denispolezhaev oscillatoryandsteadyflowsintheannularfluidlayerinsidearotatingcylinder