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research-article

Penetration of Elliptical Liquid Jets in Low Speed Cross Flow

[+] Author and Article Information
Mohammad Reza Morad

Department of Aerospace Engineering, Sharif University of Technology
morad@sharif.edu

Hamed Khosrobeygi

Department of Aerospace Engineering, Sharif University of Technology
hamedkhosrobeygi@gmail.com

1Corresponding author.

ASME doi:10.1115/1.4040373 History: Received November 07, 2017; Revised May 17, 2018

Abstract

Trajectory and penetration of elliptical liquid jets emerged into a low speed cross flow of air are studied. The jets are introduced to the cross flow at different momentum ratios ranging from 1 to 300. The images are analyzed to obtain the trajectories of the outer boundary of the jets for two different aspect ratios. An empirical correlation is proposed for the present injector geometries and for the range of momentum ratio, Weber, and Reynolds numbers used in this study. Finally, a theoretical model for the trajectory of the liquid column for an initially elliptical liquid emerging into a cross flow is presented and the associated drag coefficients are obtained for a precise trajectory prediction.

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