Streamwise and crossflow instabilities on inclined circular cylinders
conference contributionposted on 2014-02-26, 11:24 authored by Stephen J. Garrett, J. Paul Gostelow, W. A. McMullan, M. De Saint Jean, Aldo Rona
Observations of streamwise and crossflow instabilities on swept circular cylinders over a range of inclinations are presented. By considering sweep angles through the full range between the two extremes studied in the literature, we relate the streamwise vorticity of the unswept case (Kestin & Wood, J. Fluid Mech. 44) to the more aggressive crossflow instability at high sweep angles (Poll, J. Fluid Mech. 150). Measurements made on the unswept cylinder confirm earlier predictions in the literature, providing a firm basis for referencing the new measurements of vortical behaviour on cylinders with general sweep angle. The study has implications for turbine blading.
Financial support is acknowledged from the National Research Council of Canada and the University of Leicester. Myriam De Saint Jean was supported by an Erasmus Internship of the European Commission.
CitationProceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS2012), paper ICAS 2012-3.10.2
Author affiliation/Organisation/COLLEGE OF SCIENCE AND ENGINEERING/Department of Engineering
SourceICAS2012 – The 28th Congress of the International Council of the Aeronautical Sciences, Brisbane, Australia
- VoR (Version of Record)