Share Email Print
cover

Proceedings Paper

Investigation of the vortical flow above an F/A-18 using Doppler global velocimetry
Author(s): James F. Myers; Joseph W. Lee; Angelo A. Cavone; Karen E. Suzuki
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

The flow above an F/A-18 model, set to 25-degrees angle of attack, was measured using a Doppler global velocimeter, (DGV). The investigation indicated that the complex flow contained many similarities to the vortical flow above a simple delta wing set to a high-angle of attack, including flow standard deviations greater than 30-percent of free-stream. These standard deviation levels were also comparable to results found during a previous investigation of the vortical flow above a YF-17 using fringe-type laser velocimetry. The global measurement capability of the DGV provided the first evidence that the burst vortices above the model were structured. These structures were found to maintain their spatial coherence while the flow varied in an overall sense.

Paper Details

Date Published: 6 August 1993
PDF: 8 pages
Proc. SPIE 2052, Fifth International Conference on Laser Anemometry: Advances and Applications, (6 August 1993); doi: 10.1117/12.150559
Show Author Affiliations
James F. Myers, NASA Langley Research Ctr. (United States)
Joseph W. Lee, NASA Langley Research Ctr. (United States)
Angelo A. Cavone, Vigyan, Inc. (United States)
Karen E. Suzuki, Air Force Wright Lab. (United States)


Published in SPIE Proceedings Vol. 2052:
Fifth International Conference on Laser Anemometry: Advances and Applications

© SPIE. Terms of Use
Back to Top