Source of acousticwaves from a supersonic jet impinging on an inclined flat plate with various plate angle

Seiichiro Morizawa, Taku Nonomura, Hironori Honda, Shigeru Obayashi, Makoto Yamamoto, Kozo Fujii

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

Abstract

Several data mining techniques for the acoustic sources of computational data of a supersonic jet impinging on an inclined flat plate with its angle of 30, 45 and 60 degrees are applied and the results are discussed. Cluster analysis clearly shows us the classification of three kinds of acoustic waves without complicated analyses based on try-and-error process. The correlation analysis shows that the acoustic wave radiated from around the impingement is generated from the shear layer-shock interaction and has strong relationship with the fluctuation of shear layer. The POD analysis clearly shows the acoustic wave radiation pattern and illustrates that there are two types of acoustic waves from around impinging region for large plate angle case.

Original languageEnglish
Title of host publicationECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers
Pages4425-4437
Number of pages13
Publication statusPublished - 2012 Dec 1
Event6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012 - Vienna, Austria
Duration: 2012 Sep 102012 Sep 14

Publication series

NameECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers

Other

Other6th European Congress on Computational Methods in Applied Sciences and Engineering, ECCOMAS 2012
CountryAustria
CityVienna
Period12/9/1012/9/14

Keywords

  • Acoustic wave
  • Cross correlation
  • Shock wave
  • Supersonic jet

ASJC Scopus subject areas

  • Computational Theory and Mathematics
  • Applied Mathematics

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  • Cite this

    Morizawa, S., Nonomura, T., Honda, H., Obayashi, S., Yamamoto, M., & Fujii, K. (2012). Source of acousticwaves from a supersonic jet impinging on an inclined flat plate with various plate angle. In ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers (pp. 4425-4437). (ECCOMAS 2012 - European Congress on Computational Methods in Applied Sciences and Engineering, e-Book Full Papers).