论文信息 - Numerical Investigations of a Back-Flow Flap for Dynamic Stall Control

Numerical Investigations of a Back-Flow Flap for Dynamic Stall Control

Numerical investigations with the DLR TAU Code demonstrate that an actuated back-flow flap on the suction side of an OA209 helicopter airfoil is able to improve the dynamic stall behavior. When the flow begins to stall, the flap is extended which interferes with the back-flow. This weakens the dynamic stall vortex and consequently the peak in the pitching moment peak is reduced.

Kai Richter | Anthony Donald Gardner | Kurt Kaufmann

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