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|Title:||Streamwise and crossflow instabilities on inclined circular cylinders|
|Authors:||Garrett, Stephen J.|
Gostelow, J. Paul
McMullan, W. A.
De Saint Jean, M.
|Presented at:||ICAS2012 – The 28th Congress of the International Council of the Aeronautical Sciences, Brisbane, Australia|
|Publisher:||Optimage Ltd. on behalf of the International Council of the Aeronautical Sciences (ICAS)|
|Citation:||Proceedings of the 28th Congress of the International Council of the Aeronautical Sciences (ICAS2012), paper ICAS 2012-3.10.2|
|Abstract:||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.|
|Rights:||Copyright © The Author(s), 2012.|
|Appears in Collections:||Conference Papers & Presentations, Dept. of Engineering|
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