Scalar spatial correlations in a supersonic mixing flowfield

Hidemi Takahashi, Hiroki Oso, Toshinori Kouchi, Goro Masuya, Mitsutomo Hirota

研究成果: Conference contribution

3 被引用数 (Scopus)

抄録

Scalar spatial correlations in the supersonic mixing flowfield produced by a sonic transverse injection of air into a Mach 2.0 supersonic airstream were investigated using acetone planar laser-induced fluorescence (acetone PLIF) data. Side-view and end-view images were obtained in several planes to characterize the turbulent structure and three-dimensionality of the mixing flowfield. Single-time two-point spatial correlations of injectant concentration were obtained from the acetone PLIF data. Contour maps of the correlations indicated an organized large-scale structure in the upper region of the jet. Side-view correlation maps revealed that the shape of the large dominating structure was elliptic, and that its major axis turned from backward-leaning to forward-leaning as the reference point of correlation moved downstream. End-view correlation maps revealed that the instantaneous jet plume appeared by turns either in the top or in the lower sides of the timeaveraged injectant plume in each cross-section.

本文言語English
ホスト出版物のタイトル47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
出版社American Institute of Aeronautics and Astronautics Inc.
ISBN(印刷版)9781563479694
DOI
出版ステータスPublished - 2009

出版物シリーズ

名前47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition

ASJC Scopus subject areas

  • Space and Planetary Science
  • Aerospace Engineering

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