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Transitions between systems of satellite vortices in a rotating fluid

Title:

Transitions between systems of satellite vortices in a rotating fluid

Di Labbio, Giuseppe, Ait Abderrahmane, Hamid, Fayed, Mohamed and Ng, Hoi Dick (2020) Transitions between systems of satellite vortices in a rotating fluid. Physics of Fluids, 32 (101701).

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Official URL: https://doi.org/10.1063/5.0025030

Abstract

We investigate experimentally the transitions between systems of two and three satellite vortices found within a shallow layer of water above a rotating disk at the bottom of an open stationary cylindrical tank. We found that these systems of two and three satellite vortices are associated with two fundamental multipolar modes, namely, the quadrupole and hexapole, respectively. The forward and backward transitions between the two systems of satellite vortices, which occur at critical disk speeds, involve growth and decay of the fundamental modes as well as the excitation of their common harmonic (the dodecapole) and symmetric radial oscillations.

Divisions:Concordia University > Gina Cody School of Engineering and Computer Science > Mechanical, Industrial and Aerospace Engineering
Item Type:Article
Refereed:Yes
Authors:Di Labbio, Giuseppe and Ait Abderrahmane, Hamid and Fayed, Mohamed and Ng, Hoi Dick
Journal or Publication:Physics of Fluids
Date:2020
Digital Object Identifier (DOI):doi.org/10.1063/5.0025030
ID Code:990790
Deposited By: Hoi Dick Ng
Deposited On:13 Sep 2022 18:38
Last Modified:13 Sep 2022 18:38
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