Numerical simulations based evidence of impingement free sound production during vortex-nozzle interaction in solid rocket motors

Lionel Hirschberg, Steven J. Hulshoff, Thierry Schuller, Christophe F. Schram, Jean Collinet

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

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 languageEnglish
Title of host publication25th AIAA/CEAS Aeroacoustics Conference, 2019
PublisherAmerican Institute of Aeronautics and Astronautics
ISBN (Print)9781624105883
DOIs
Publication statusPublished - 2019
Externally publishedYes
Event25th AIAA/CEAS Aeroacoustics Conference, Aeroacoustics 2019 - Delft University of Technology Aula Conference Centre, Delft, Netherlands
Duration: 20 May 201924 May 2019
Conference number: 25

Conference

Conference25th AIAA/CEAS Aeroacoustics Conference, Aeroacoustics 2019
Abbreviated titleAeroacoustics 2019
Country/TerritoryNetherlands
CityDelft
Period20/05/1924/05/19

Keywords

  • n/a OA procedure

Fingerprint

Dive into the research topics of 'Numerical simulations based evidence of impingement free sound production during vortex-nozzle interaction in solid rocket motors'. Together they form a unique fingerprint.

Cite this