Effect of Flow-Induced Surface Vibration on Deep Cavity Aeroacoustics

Muhammad Rehan Naseer, Irsalan Arif, Garret C.Y. Lam, Randolph C.K. Leung

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

3 Citations (Scopus)

Abstract

This study examines an elastic panel flush-mounted on the bottom wall of a deep cavity, under the subsonic flow condition of Mach number 0.09, as a passive approach to the tonal noise abatement. The interaction between acoustically excited cavity modes and an elastic panel installed on the cavity bottom wall is investigated using direct aeroacoustics simulation. The panel is carefully designed to maintain the natural frequency of the panel vibration in compliance with the flow frequency. Two different materials, steel and rubber, are selected for the panel design to ascertain the effect of material on the panel response to the standing cavity modes to leverage the reduction of tonal noise emissions. Numerical findings have substantiated the marked improvement in noise suppression and coefficient of pressure. Furthermore, based on a comparative analysis, the panel with elastomeric properties has shown the best potential for the tonal noise reduction.

Original languageEnglish
Title of host publication28th AIAA/CEAS Aeroacoustics Conference, 2022
PublisherAmerican Institute of Aeronautics and Astronautics Inc. (AIAA)
ISBN (Print)9781624106644
DOIs
Publication statusPublished - 13 Jun 2022
Event28th AIAA/CEAS Aeroacoustics Conference, 2022 - Southampton, United Kingdom
Duration: 14 Jun 202217 Jun 2022

Publication series

Name28th AIAA/CEAS Aeroacoustics Conference, 2022

Conference

Conference28th AIAA/CEAS Aeroacoustics Conference, 2022
Country/TerritoryUnited Kingdom
CitySouthampton
Period14/06/2217/06/22

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Fingerprint

Dive into the research topics of 'Effect of Flow-Induced Surface Vibration on Deep Cavity Aeroacoustics'. Together they form a unique fingerprint.

Cite this