Experimental Investigation of Breakup Characteristics of Elliptical, Rectangular and Circular Water Jets

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JABERI A.; TADJFAR M.; Sheidani a.

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Paper Information

Journal: Journal of Applied and Computational Sciences in Mechanics Year:2019 | Volume:30 | Issue:1 (19) Page(s): 1-16

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Title

Experimental Investigation of Breakup Characteristics of Elliptical, Rectangular and Circular Water Jets

Author(s)

JABERI A. | TADJFAR M. | Sheidani a. | Issue Writer Certificate

Keywords

Water jet breakupQ1

Axis switching phenomenonQ1

Elliptical jetQ1

Rectangular jetQ1

Multiphase flowsQ1

Abstract

In this study, the instabilities of elliptical, rectangular and circular water jets were experimentally investigated. Shadowgraph technique was employed to capture the jet column status instantaneously. Jet parameters such as disintegration length and axis switching wavelength were quantitatively studied. The results showed that due to the similar characteristics of rectangular and Elliptical jets, their breakup length in the second wind-induced regime is nearly equal, while the breakup length of circular jet is perceptibly shorter. Both rectangular and Elliptical jets are affected by aerodynamic forces sooner and thus enter the first wind induced regime at lower velocities. Furthermore, it was revealed that the axis switching wavelength is not dependent upon the jet geometry at low Weber numbers and remains equal for both elliptical and Rectangular jets. However, at high Weber numbers, the axis switching wavelength of Rectangular jet become larger than the elliptical one. Based on the obtained results, a semi-empirical relation was proposed to predict the axis switching wavelength of rectangular and Elliptical jets.

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APA: Copy

JABERI, A., TADJFAR, M., & Sheidani, a.. (2019). Experimental Investigation of Breakup Characteristics of Elliptical, Rectangular and Circular Water Jets. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), 30(1 (19) ), 1-16. SID. https://sid.ir/paper/196290/en

Vancouver: Copy

JABERI A., TADJFAR M., Sheidani a.. Experimental Investigation of Breakup Characteristics of Elliptical, Rectangular and Circular Water Jets. JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING)[Internet]. 2019;30(1 (19) ):1-16. Available from: https://sid.ir/paper/196290/en

IEEE: Copy

A. JABERI, M. TADJFAR, and a. Sheidani, “Experimental Investigation of Breakup Characteristics of Elliptical, Rectangular and Circular Water Jets,” JOURNAL OF APPLIED AND COMPUTATIONAL SCIENCES IN MECHANICS (JOURNAL OF SCHOOL OF ENGINEERING), vol. 30, no. 1 (19) , pp. 1–16, 2019, [Online]. Available: https://sid.ir/paper/196290/en

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