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Journal of Flow Visualization and Image Processing
SJR: 0.161 SNIP: 0.312 CiteScore™: 0.1

ISSN Druckformat: 1065-3090
ISSN Online: 1940-4336

Journal of Flow Visualization and Image Processing

DOI: 10.1615/JFlowVisImageProc.v1.i1.10
pages 1-13

VORTEX TOPOLOGY OF RECTANGULAR WINGS IN PICTURES, SKETCHES, AND CONJECTURES

Peter Freymuth
Department of Aerospace Engineering Sciences, University of Colorado, Boulder, Colorado 80309

ABSTRAKT

Vortex structures around rectangular wings exposed to steady flow are visualized and distilled into vortex line models. Two distinct flow modes were found. In the low angle of attack mode, vorticity production near the leading edge of the wing is balanced mainly by backdiffusion of vorticity into the wing in areas of adverse pressure gradient. In the high angle of attack mode, the vorticity produced is convected mainly into the wake in the form of a vortex sheet surrounding the circumference of the wing and continuallyseparating from it.


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