Acoustic cloaking in a mean flow

Siyang Zhong, Xun Huang

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


Acoustic cloak is a metamaterial that makes the cloaked objects impervious towards sound waves. Existing acoustic cloak designs were originally formulated in a stationary medium. An acoustic shadow appears if those cloaking designs are located in a non- stationary flow field that discloses the concealed objects. A simple design is formulated to largely address this mean flow related issue, constituting the main contribution of the present article. The proposed new cloaking design is demonstrated in numerical simulations. The sound scattering from the cloaking design is studied using the model of linearized Euler equation. The background mean flow is calculated at low Mach numbers between 0 and 0.06, using potential and incompressible flow models, respectively. The performance of the proposed cloaking design is examined by studying both near- and far-field acoustic solutions.

Original languageEnglish
Title of host publication19th AIAA/CEAS Aeroacoustics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Number of pages1
ISBN (Print)9781624102134
Publication statusPublished - 2013
Externally publishedYes
Event19th AIAA/CEAS Aeroacoustics Conference - Berlin, Germany
Duration: 27 May 201329 May 2013

Publication series

Name19th AIAA/CEAS Aeroacoustics Conference


Conference19th AIAA/CEAS Aeroacoustics Conference

ASJC Scopus subject areas

  • Aerospace Engineering
  • Electrical and Electronic Engineering
  • Acoustics and Ultrasonics


Dive into the research topics of 'Acoustic cloaking in a mean flow'. Together they form a unique fingerprint.

Cite this