On the dynamics of the polygonal satellite vortices

Hamid Ait Abderrahamane, Kamran Siddiqui, Georgios Vatistas

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

This paper deals with the dynamics of polygonal shapes resulting from the symmetry breaking of hollow-vortex core in a shallow water layer produced by a rotating disk near the bottom within a stationary cylindrical container. These polygonal shapes are investigated through image analysis. It is found that a given polygon rotates at the frequency close to one-third of the corresponding disk frequency and the flow dynamics around the apexes of the polygon is characterized by a frequency which is close to one-third of the frequency of the given polygonal pattern. The results also suggest a possible resonance between the satellite vortices at the apexes of the patterns and the bulk flow.

Original languageBritish English
Title of host publicationProceedings of the ASME Fluids Engineering Division Summer Conference 2009, FEDSM2009
Pages1467-1470
Number of pages4
EditionPART B
DOIs
StatePublished - 2009
Event2009 ASME Fluids Engineering Division Summer Conference, FEDSM2009 - Vail, CO, United States
Duration: 2 Aug 20096 Aug 2009

Publication series

NameProceedings of the ASME Fluids Engineering Division Summer Conference 2009, FEDSM2009
NumberPART B
Volume1

Conference

Conference2009 ASME Fluids Engineering Division Summer Conference, FEDSM2009
Country/TerritoryUnited States
CityVail, CO
Period2/08/096/08/09

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