Impact of trailing edge shape on the wake and propulsive performance of pitching panels
Makaleler > Tam Makale · 2017
Yazarlar: T. Van Buren, D. Floryan, Daniel Brunner, Utku ŞENTÜRK, A. J. Smits
PHYSICAL REVIEW FLUIDS, SCI Expanded İndekslerine Giren Dergi, Uluslararası, 2017, cilt 2
DOI: 10.1103/physrevfluids.2.014702
Özet
The effects of changing the trailing edge shape on the wake and propulsive performance of a pitching rigid panel are examined experimentally. The panel aspect ratio is AR = 1, and the trailing edges are symmetric chevron shapes with convex and concave orientations of varying degree. Concave trailing edges delay the natural vortex bending and compression of the wake, and the mean streamwise velocity field contains a single jet. Conversely, convex trailing edges promote wake compression and produce a quadfurcated wake with four jets. As the trailing edge shape changes from the most concave to the most convex, the thrust and efficiency increase significantly.