Scalar spatial correlations in a supersonic mixing flowfield

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

Research output: Contribution to journalArticle

8 Citations (Scopus)

Abstract

Single-time two-point spatial correlations of injectant concentrations 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 data. Side-view and end-view contour maps were obtained in several planes to characterize the turbulent structure and three-dimensionality of the mixing flowfield. The correlation maps indicated an organized large-scale structure in the upper region of the jet. The 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. The end-view correlation maps showed that the instantaneous jet plume appeared by turns either in the top or in the lower sides of the time-averaged injectant plume in each cross section.

Original languageEnglish
Pages (from-to)443-452
Number of pages10
JournalAIAA Journal
Volume48
Issue number2
DOIs
Publication statusPublished - Feb 2010
Externally publishedYes

Fingerprint

Acetone
Mach number
Fluorescence
Lasers
Air

ASJC Scopus subject areas

  • Aerospace Engineering

Cite this

Takahashi, H., Oso, H., Kouchi, T., Masuya, G., & Hirota, M. (2010). Scalar spatial correlations in a supersonic mixing flowfield. AIAA Journal, 48(2), 443-452. https://doi.org/10.2514/1.44684

Scalar spatial correlations in a supersonic mixing flowfield. / Takahashi, Hidemi; Oso, Hiroki; Kouchi, Toshinori; Masuya, Goro; Hirota, Mitsutomo.

In: AIAA Journal, Vol. 48, No. 2, 02.2010, p. 443-452.

Research output: Contribution to journalArticle

Takahashi, H, Oso, H, Kouchi, T, Masuya, G & Hirota, M 2010, 'Scalar spatial correlations in a supersonic mixing flowfield', AIAA Journal, vol. 48, no. 2, pp. 443-452. https://doi.org/10.2514/1.44684
Takahashi, Hidemi ; Oso, Hiroki ; Kouchi, Toshinori ; Masuya, Goro ; Hirota, Mitsutomo. / Scalar spatial correlations in a supersonic mixing flowfield. In: AIAA Journal. 2010 ; Vol. 48, No. 2. pp. 443-452.
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