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This study investigates the role of convecting disturbances and acoustic standing waves in supersonic impinging jets, focusing on the convection velocity of disturbances in the jet shear layer. High-speed schlieren flow visualization is employed to analyze the effects of nozzle pressure ratios on disturbance convection velocity and impingement tonal frequency. The findings indicate that slower convection velocities correspond to larger coherent structures and higher noise levels, leading to the development

Author

Han Will

Language

EN