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Old 05-09-2020, 09:43 PM   #76 (permalink)
JulianEdgar
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Edgarwit with my 'eroding clay' visualization technique.

Separation line marked on outside of aerofoil:



Vortex generated by sharp leading edge of endplate:



Completely clean inside surface of aerofoil:



Lack of removal of clay on bumper:



Testing done in windy conditions.
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