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research-article

Spray Characteristics of Elliptical Power-Law Fluid Impinging Jets

[+] Author and Article Information
Fei Zhao

School of Astronautics, Beijing University of Aeronautics and Astronautics
zfly87@163.com

Li-zi Qin

School of Astronautics, Beijing University of Aeronautics and Astronautics
qinlizi@126.com

Qing-fei Fu

School of Astronautics, Beijing University of Aeronautics and Astronautics
fuqingfei@buaa.edu.cn

Chaojie Mo

School of Astronautics, Beijing University of Aeronautics and Astronautics
mochaojie@gmail.com

Li-jun Yang

School of Astronautics, Beijing University of Aeronautics and Astronautics
yanglijun@buaa.edu.cn

1Corresponding author.

ASME doi:10.1115/1.4036164 History: Received March 17, 2016; Revised February 15, 2017

Abstract

The spray characteristics of liquid sheet contribute much to the investigation of atomization efficiency. Considering the jet contracting effect of elliptical jets, an improved model of elliptical power-law fluid jets is proposed herein to derive the spray characteristics. Some experiments have been conducted to verify its feasibility and the results show good agreement with theoretical predictions. The effect of the aspect ratio on sheet shape and thickness has been studied to interpret the phenomenon that liquid sheets formed by impinging elliptical jets are more likely to disintegrate. The relationships between rheological parameters (K and n) and the spray features are also discussed.

Copyright (c) 2017 by ASME
Topics: Fluids , Jets , Sprays , Shapes , Rheology
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