Circulation Control Using Arrays of Fluidically Oscillating Jets

What is it about?

Controlled modification of an airfoil’s circulation to effect significant lift increments has been explored by segmented Coanda actuation using spanwise distributions of fluidically oscillating wall jets integrated into the rounded trailing edge of a 2-D supercritical airfoil model. It is shown that segmented circulation control leads to significant lift increments, indicating that, at a given actuation mass flow rate, the 3-D Coanda wall jets yield a higher lift increment than a 2-D wall jet having the same span.

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