The wake dynamics of a cylinder moving along a planewall with rotation and translation

B. Stewart, K. Hourigan, M. Thompson, Thomas Leweke

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Abstract

A numerical investigation examined the two-dimensional flow structures forming around a cylinder moving along a wall with different combinations of rolling and sliding, with Reynolds numbers, Re, ranging from 20 to 500. Past research has shown that both wall effects and rotation can suppress the mechanisms which bring about unsteady flow. Knowing this, it is natural to question how the flow will be affected when both these properties are present, as is the case for the cylinder rolling along a wall. Results indicate that the transition from steady to timevarying flow is strongly influenced by the rate of rotation of the body, and for the case of reversed rolling, the onset of unsteady flow is delayed until Reynolds numbers above 400.

Original languageEnglish
Title of host publicationIUTAM Symposium on Unsteady Separated Flows and their Control - Proceedings of the IUTAM Symposium "Unsteady Separated Flows and their Control"
Pages495-504
Number of pages10
Volume14
DOIs
Publication statusPublished - 2009
EventIUTAM Symposium on Unsteady Separated Flows and their Control 2007 - Corfu Greece, Corfu, Greece
Duration: 18 Jun 200722 Jun 2007

Publication series

NameSolid Mechanics and its Applications
Volume14
ISSN (Print)18753507

Conference

ConferenceIUTAM Symposium on Unsteady Separated Flows and their Control 2007
CountryGreece
CityCorfu
Period18/06/0722/06/07

Keywords

  • Flow control
  • Rolling cylinder
  • Wake dynamics

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