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41st Plasmadynamics and Lasers Conference
A series of experiments was carried out to determine if the passage frequency of coherent structures over a partially covered, rectangular cavity could be sufficiently regularized so as to make predictable the spatio-temporal optical characteristics of the shear layer. This type of passive regularization, in which no actuation is employed, had manifested itself in earlier tests as the "trapped-mode" resonance phenomenon. These more recent experiments used an acoustically treated wind tunnel todoi:10.2514/6.2010-4497 fatcat:gu3zeozorzhjnefalghem7aupy