Journal article
Scaling the circulation shed by a pitching panel
Journal of fluid mechanics, Vol.688, pp.591-601
12/10/2011
DOI: 10.1017/jfm.2011.408
Abstract
A new scaling parameter is developed for the circulation shed by a rigid, rectangular panel pitching periodically about its leading edge. This parameter is the product of a kinematic and a geometric component. The kinematic component describes the relationship between the mean vorticity flux from the panel surface and the panel motion. The geometric component depends on the ratio of pitching amplitude to the span of the panel. The kinematic component is developed based on the connection between the surface pressure distribution and the resulting surface vorticity flux, which are supported in a stroke-averaged sense by pressure measurements on the surface of the panel. The parameter gives a robust scaling for the total spanwise circulation shed in a half-cycle by the panel. It provides a useful predictive tool, in that it can be either complementary to the formation number or provide an alternative scaling parameter when vortex saturation and pinch-off do not occur.
Details
- Title: Subtitle
- Scaling the circulation shed by a pitching panel
- Creators
- James H. J Buchholz - 1Department of Mechanical and Industrial Engineering / IIHR – Hydroscience & Engineering, University of Iowa, Iowa City, IA 52242, USAMelissa A Green - 2Laboratories for Computational Physics and Fluid Dynamics, Naval Research Laboratory, Washington, DC 20375, USAAlexander J Smits - 3Department of Mechanical and Aerospace Engineering, Princeton University, Princeton, NJ 08544, USA
- Resource Type
- Journal article
- Publication Details
- Journal of fluid mechanics, Vol.688, pp.591-601
- Publisher
- Cambridge University Press; Cambridge, UK
- DOI
- 10.1017/jfm.2011.408
- ISSN
- 0022-1120
- eISSN
- 1469-7645
- Number of pages
- 11
- Language
- English
- Date published
- 12/10/2011
- Academic Unit
- Mechanical Engineering
- Record Identifier
- 9984064590502771
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