27th Congress of International Council of the Aeronautical Sciences, 19 - 24 September 2010, Nice, France
Paper ICAS 2010-3.7.3

SEPARATION POSTPONEMENT BY MEANS OF PERIODIC SURFACE EXCITATION

L. L. M. Veldhuis, M. van der Jagt
TU Delft, Netherlands

Keywords: separation control, vortex generators, surface excitation

Separation control by periodic surface excitation was investigated experimentally. The flow over a ramp was measured using pressure taps and stereo-PIV. Compared with optimized vortex generators, which acted as a reference, the flap-type actuator was found to be very efficient in the control and postponement of the flow separation.

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