Vortex scale of unsteady separation on a pitching airfoil.
Ann N Y Acad Sci
; 972: 61-6, 2002 Oct.
Article
en En
| MEDLINE
| ID: mdl-12495998
The streaklines of unsteady separation on two kinds of pitching airfoils, the NACA65-0910 and a blunt trailing edge airfoil, were studied by dye flow visualization and by the Schlieren method. The latter visualized the discrete vortices shed from the leading edge. The results of these visualization studies allow a comparison between the dynamic behavior of the streakline of unsteady separation and that of the discrete vortices shed from the leading edge. The influence of the airfoil configuration on the flow characteristics was also examined. Furthermore, the scale of a discrete vortex forming the recirculation region was investigated. The non-dimensional pitching rate was k = 0.377, the angle of attack alpha(m) = 16 degrees and the pitching amplitude was fixed to A = +/-6 degrees for Re = 4.0 x 10(3) in this experiment.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Modelos Biológicos
Tipo de estudio:
Prognostic_studies
Límite:
Humans
Idioma:
En
Revista:
Ann N Y Acad Sci
Año:
2002
Tipo del documento:
Article
País de afiliación:
Japón
Pais de publicación:
Estados Unidos