... to the component noise levels for a current passenger aircraft. Note that to reach this noise level requires an aircraft that is less than half as noisy as the target identified by the ACARE vision for 2020 ( 1 ). aerospace engines aerospace components aircraft noise abatement shafts fans gas...

... engineering aircraft noise abatement Mach number supersonic flow shock waves nozzles jet engines While noise from civil aircraft has reduced significantly over the last 20 years, the downward trend is levelling off and, within the UK, predicted increases in aircraft movements are expected...

... thermoacoustics gas turbines noise abatement damping modal analysis acoustic field combustion finite element analysis transfer functions acoustic pulses flames acoustic intensity acoustic wave velocity In gas turbines operating with lean premix flames, the suppression...