POD of aeroacoustic fields of a jet impinging on an inclied plate

Taku Nonomura, Kozo Fujii

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

9 Citations (Scopus)

Abstract

Proper orthogonal decomposition (POD) analysis of a supersonic jet impinging on an inclined flat plate is presented. We process data of flow fields and acoustic fields obtained in the previous study in which we found that three kinds of aeroacoustic waves are generated; (i) Mach waves from the main jet, (ii) acoustic waves from the impingement region and (iii)Mach waves from the supersonic flow downstream of the impingement region. For the two-dimensional pressure distribution in acoustic fields by a impinging jet, POD analysis with Fourier transformation is conducted. POD results illustrate locations of the acoustic waves (ii) and Mach waves (iii). Also POD results show that acoustic waves (ii) and Mach waves (iii) are observed in the same POD mode. Thus, the result shows that the acoustic wave (ii) and Mach wave (iii) have the strong relation each other.

Original languageEnglish
Title of host publication16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
Publication statusPublished - 2010 Dec 6
Externally publishedYes
Event16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) - Stockholm, Sweden
Duration: 2010 Jun 72010 Jun 9

Publication series

Name16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)

Other

Other16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)
CountrySweden
CityStockholm
Period10/6/710/6/9

ASJC Scopus subject areas

  • Aerospace Engineering
  • Acoustics and Ultrasonics

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  • Cite this

    Nonomura, T., & Fujii, K. (2010). POD of aeroacoustic fields of a jet impinging on an inclied plate. In 16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference) [2010-4019] (16th AIAA/CEAS Aeroacoustics Conference (31st AIAA Aeroacoustics Conference)).