Acoustic invisibility in turbulent fluids by optimised cloaking

Xun Huang, Siyang Zhong, Xin Liu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

26 Citations (Scopus)

Abstract

Acoustic invisibility of a cloaking system in turbulent fluids is poorly understood. Here we show that evident scattering would appear in turbulent wakes due to the submergence of a classical cloaking device. The inherent physical mechanism is explained using our theoretical model, which eventually inspires us to develop an optimised cloaking approach. Both the near- and far-field scattered fields are examined using computational methods. The remarkably low scattering demonstrates the effectiveness of the proposed approach, in particular for acoustic cloaking in turbulent fluids.

Original languageEnglish
Pages (from-to)460-477
Number of pages18
JournalJournal of Fluid Mechanics
Volume749
DOIs
Publication statusPublished - 2014
Externally publishedYes

Keywords

  • acoustics
  • aeroacoustics
  • waves in random media

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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