Abstract
The effect of pulse-width modulated (PWM) blowing/suction through a hole in a flat plate, above which a Blasius boundary layer develops, is studied. A hot wire is used to measure the streamwise velocity downstream of the hole. The PWM blowing/suction is found to create amplitude-modulated variations in the streamwise velocity, which are well correlated with the signal generating the disturbance.
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Lundell, F. Pulse-width modulated blowing/suction as a flow control actuator. Exp Fluids 35, 502–504 (2003). https://doi.org/10.1007/s00348-003-0671-4
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DOI: https://doi.org/10.1007/s00348-003-0671-4