Effect of a Weak Jet on a Strong Jet

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Louaifi Hamaili S.; Mataoui a.; Aksouh M.

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Journal Paper

Paper Information

Journal: JOURNAL OF APPLIED FLUID MECHANICS (JAFM) Year:2019 | Volume:12 | Issue:6 Page(s): 2083-2093

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Information Journal Paper

Title

Effect of a Weak Jet on a Strong Jet

Author(s)

Louaifi Hamaili S. | Mataoui a. | Aksouh M. | Issue Writer Certificate

Keywords

Two unequal Jets

Turbulence

Strong jet

CFD

Self similarity

Abstract

This paper investigates the influence of a weak-jet on the development of a turbulent axisymmetric Strong jet. A parametric study is carried out to evaluate simultaneously the effect to the jets-spacing (S/D=3 and S/D=7. 5) and their velocity ratios in range 0≤ λ ≤ 1. The mixing phenomenon is studied numerically by the finite volume method using the 3D-RANS second-order model, which gives a good agreement with the available data. Three distinct regions of this type of jets interaction are evidenced. This study confirms that the jets spacing affects strongly the converging region and has a minor effect on the combining region. It is found that the weak jet attracts the Strong jet and the combining region extends from 30D to 40D where the self-similarity of a single jet is obtained. The jet width decreases when velocity ratio and jets spacing augment. In the combining region, in comparison with the free jet, it is found that the addition of a weak-jet increases the decay rate of the centerline velocity.

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APA: Copy

Louaifi Hamaili, S., Mataoui, a., & Aksouh, M.. (2019). Effect of a Weak Jet on a Strong Jet. JOURNAL OF APPLIED FLUID MECHANICS (JAFM), 12(6), 2083-2093. SID. https://sid.ir/paper/308339/en

Vancouver: Copy

Louaifi Hamaili S., Mataoui a., Aksouh M.. Effect of a Weak Jet on a Strong Jet. JOURNAL OF APPLIED FLUID MECHANICS (JAFM)[Internet]. 2019;12(6):2083-2093. Available from: https://sid.ir/paper/308339/en

IEEE: Copy

S. Louaifi Hamaili, a. Mataoui, and M. Aksouh, “Effect of a Weak Jet on a Strong Jet,” JOURNAL OF APPLIED FLUID MECHANICS (JAFM), vol. 12, no. 6, pp. 2083–2093, 2019, [Online]. Available: https://sid.ir/paper/308339/en

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