The effects of perturbation-based active flow control on supersonic rectangular twin jets (SRTJ) over a wide range nozzle pressure ratios (NPR = 2.77 to 6.7, corresponding fully expanded Mach numbers M j 1.3 1.9) were investigated. aspect ratio and design number for the bi-conic, converging-diverging nozzles 2 1.5, respectively. acoustic fields SRTJ are known couple, often generating high near-...