Abstract
Dedicated numerical simulations of vortex-nozzle interaction indirect noise in solid rocket motors (SRMs) are presented. It is assumed that the flow in the nozzle and hence the sound radiation is not significantly influenced by the global acoustic oscillation of a SRM. Therefore, the study is limited to the acoustic response of a semi-infinite pipe terminated by a choked nozzle. The nozzle considered here is placed flush in a wall forming a right angle to the walls of the combustion chamber. The study focuses on where sound is produced due to vortex-nozzle interaction. The presented results indicate that sound is produced when the vortex is on its approach to the nozzle, rather than by impingement of the vortex on the nozzle walls.
Original language | English |
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Title of host publication | 25th AIAA/CEAS Aeroacoustics Conference |
Subtitle of host publication | 20-23 May 2019 Delft, The Netherlands |
Number of pages | 14 |
ISBN (Electronic) | 978-1-62410-588-3 |
DOIs | |
Publication status | Published - 2019 |
Event | 25th AIAA/CEAS Aeroacoustics Conference - Delft, Netherlands Duration: 20 May 2019 → 23 May 2019 Conference number: 25 https://arc.aiaa.org/doi/book/10.2514/MAERO19 |
Conference
Conference | 25th AIAA/CEAS Aeroacoustics Conference |
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Country/Territory | Netherlands |
City | Delft |
Period | 20/05/19 → 23/05/19 |
Internet address |