NACA 4412 section, Chord = 0.6, LE @ (0.7, 0.4), 15$^\circ$ alpha
This case demonstrates strong circulation and substantially decelerated flow in the duct. Note also the deceleration before the duct.
Disk causes increase in velocity inside the duct, mimimal effect on outer surface.
Disk causes significantly increased velocity inside the duct and increased mass capture. Nearly full mass capture is achieved, with little deceleration ahead of the duct.
