Acoustic experiment and numerical simulation on unheated supersonic jet flow for a small-scale nozzle

Seung Hoon Kang, Hyun Shik Joo, Sang Joon Shin, Taeyoung Park, Won Suk Ohm, Jeong Won Park

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Citations (Scopus)


Experiment and numerical simulation for acoustics by unheated supersonic jet flow generated from a small-scale nozzle are performed. Linear and circular microphone arrays are employed for near-field noise and far-field noise, respectively. A peak radiation angle and peak average overall sound pressure level (OASPL) for far-field noise measured in experiment are validated by the previous studies. In the numerical simulation, delayed detached eddy simulation (DDES) is conducted for both near and far-field acoustic prediction. Helmholtz Kirchhoff integral method is employed for far-field noise prediction based on the results of computational fluid dynamics (CFD) simulation. Relatively accurate prediction is accomplished for the directional noise from the large turbulence structures. And discrepancies increase when it comes to omni-directional noise from the fine-scale turbulences.

Original languageEnglish
Title of host publicationAIAA Scitech 2020 Forum
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
Number of pages13
ISBN (Print)9781624105951
Publication statusPublished - 2020
EventAIAA Scitech Forum, 2020 - Orlando, United States
Duration: 2020 Jan 62020 Jan 10

Publication series

NameAIAA Scitech 2020 Forum


ConferenceAIAA Scitech Forum, 2020
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2020 American Institute of Aeronautics and Astronautics Inc, AIAA. All rights reserved.

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering


Dive into the research topics of 'Acoustic experiment and numerical simulation on unheated supersonic jet flow for a small-scale nozzle'. Together they form a unique fingerprint.

Cite this