A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2017; you can also visit the original URL.
The file type is
Experimental Investigation of the Acoustics of an Annular Aerospike Nozzle Flow
15th AIAA/CEAS Aeroacoustics Conference (30th AIAA Aeroacoustics Conference)
The aeroacoustic characteristics of an over-expanded annular aerospike nozzle have been studied. The overall sound pressure levels of the aerospike nozzle are compared with the levels obtained from a convergent divergent nozzle for a given pressure ratio of 2.57 for the over-expanded condition. It is observed that the over-expanded annular aerospike nozzle generates screech tones at this NPR and in general shows higher OASPL levels than the over-expanded convergent-divergent nozzle at peakdoi:10.2514/6.2009-3375 fatcat:ckxaverlujc4hmiv6h5yi3fove