Measurements of a confined coaxial square jet

X. K. Wang; S. C.M. Yu; L. P. Chua

doi:10.2514/6.2002-731

Measurements of a confined coaxial square jet

X. K. Wang, S. C.M. Yu, L. P. Chua

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research › peer-review

1 Citation (Scopus)

Abstract

The near field of a confined coaxial square jet configuration has been investigated using a Laser Doppler Anemometer. While most of the previous works concentrated on coaxial circular jet, the present work focuses on a square configuration, which stems from the fact that single non-circular nozzles have been shown to have better mixing characteristics than circular counterparts. The results are presented and discussed for various flow conditions, i.e., the velocity ratio between the inner and outer streams of the jet, γ_u (γ_u = U_o/U_i) at 0.5, 1.0 and 2.0, with a fixed initial velocity for the inner stream. The obtained data show that the mixing process is strongly affected by the initial velocity ratio γ_u- It is also revealed that the mean flow characteristics generally follow a similar trend as those of the previous investigations on coaxial circular jets. The axis-switching phenomenon has also been briefly discussed.

Original language	English
DOIs	https://doi.org/10.2514/6.2002-731
Publication status	Published - 2002
Externally published	Yes
Event	40th AIAA Aerospace Sciences Meeting and Exhibit 2002 - Reno, NV, United States Duration: 14 Jan 2002 → 17 Jan 2002

Conference

Conference	40th AIAA Aerospace Sciences Meeting and Exhibit 2002
Country/Territory	United States
City	Reno, NV
Period	14/01/02 → 17/01/02

ASJC Scopus subject areas

Space and Planetary Science
Aerospace Engineering

More information

10.2514/6.2002-731

Cite this

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Measurements of a confined coaxial square jet. / Wang, X. K.; Yu, S. C.M.; Chua, L. P.
2002. Paper presented at 40th AIAA Aerospace Sciences Meeting and Exhibit 2002, Reno, NV, United States.

Research output: Unpublished conference presentation (presented paper, abstract, poster) › Conference presentation (not published in journal/proceeding/book) › Academic research › peer-review

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Measurements of a confined coaxial square jet

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