Flow Excited Resonance of a Confined Shallow Cavity in Low Mach Number Flow and Its Control

Abstract Shallow cavities exposed to unbounded, low Mach number flow are generally weak aeroacoustic sources because their acoustic modes are heavily damped. This paper focuses on a cavity mounted on the wall of a duct to investigate the effect of “confinement”, i.e., solid boundaries close to the cavity, on the aeroacoustic response of shallow cavities in low Mach number flow (M

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