For the past years quieter turbofan engines development accentuated the airframe noise
in turn becoming an important noise source in commercial aircrafts.
The controls were OK, and a cursory look at the instruments and indicators appeared fine, but there was a slight airframe noise
The simulation of airframe noise
applying Euler-perturbation and acoustic analogy approaches
It addresses jet noise, propeller noise, airframe noise
, and boundary layer noise, as well as topics with wider industrial application such as noise barriers and sound propagation.