Feedback Control of Flow Separation Using Plasma Actuator and FBG Sensor

Figure 14

Flow separation control effects of the feedback system under periodic wall oscillation. (a) Duration () for inducing tangential jets from the exposed electrode of the string-type DBD plasma actuator, once the running crossed the threshold value. (b) variations under periodic wall oscillation. (c) Time-series for TTL, , , and over 10 s in case of = 0.05 s. Jets induced by the DBD plasma actuator are injected for = 0.3 s beginning when crossed . increases immediately when exceeds , and then returns to below .

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