inlet buzz

inlet buzz

An audible sound that sometimes occurs in inlets of supersonic aircraft when a shock wave moves in and out alternately. This condition appears when design parameters are exceeded.
References in periodicals archive ?
Furthermore, the surface pressure shows a significant periodic pressure oscillation during the process of hypersonic inlet buzz, which causes unsteady aerodynamic loads.
At a higher throttling ratio, the hypersonic inlet buzz appears.
* Mach biasing of the engine schedules based on aircraft speed inputs for the aircraft central air data computer -- automatically prevents inlet buzz during deceleration from supersonic speeds.