Birdstrike 00 by Blechnik
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Description
Sorry folks, this piece of great artwork has not been done by me, but by mother nature herself, no art(ificial post)work at all - except for pressing the trigger.
Lately, I got some wind tunnel time for playing around with flow visualization, among a few other things, on a (fraction of a) glider wing.
Trying to show laminar-turbulent transition and the laminar separation bubble, I always encountered some trouble with turbulent wedges that originated from agglomerated paint. On the pressure side, quite a big turbulent wedge formed near the centre line (flow from the right to the left). When this ran through the laminar separation, the streamlines painted such an amazing picture onto the wall.
This is just an overview snap shot done within the test section, view the next/previous for a close up.
Airfoil Eppler E-603 (Twin Astir I), AOA alpha=6°, effective alpha=0°, u=29m/s, Re=2.5E6
flow visualized using soot, oil and kerosene
canon HF-100
Comments (2)
jayfar
Very interesting.
vechtdalcollege
Good texture and very suggestive. gr.Rudy