TY - JOUR
T1 - Ligament characterization of atomizing non-Newtonian liquid sheets
T2 - Fractal dimension
AU - Zhao, Yue
AU - Yang, Lijun
AU - Fu, Qingfei
N1 - Publisher Copyright:
© IMechE 2018.
PY - 2019/1/1
Y1 - 2019/1/1
N2 - As gel propellants are increasingly used in rocket engines, non-Newtonian liquid atomization has emerged as a research subject of great interest. This paper addresses the atomization of flat sheets of aqueous xanthan gum solution, which are formed from two jets ejected from impinging injectors. Based on the experimental photos, it has been found that gel liquid sheets do not break up directly into droplets that can be characterized as spheres with Sauter mean diameter; instead, a mass of ligaments is observed. Therefore, this paper will introduce fractal dimension as a new parameter, related to the quality of atomization under these experimental conditions; and a power-law correlation between fractal dimension and Reynolds number of liquid jets has been achieved.
AB - As gel propellants are increasingly used in rocket engines, non-Newtonian liquid atomization has emerged as a research subject of great interest. This paper addresses the atomization of flat sheets of aqueous xanthan gum solution, which are formed from two jets ejected from impinging injectors. Based on the experimental photos, it has been found that gel liquid sheets do not break up directly into droplets that can be characterized as spheres with Sauter mean diameter; instead, a mass of ligaments is observed. Therefore, this paper will introduce fractal dimension as a new parameter, related to the quality of atomization under these experimental conditions; and a power-law correlation between fractal dimension and Reynolds number of liquid jets has been achieved.
KW - Gel liquid sheet
KW - breakup
KW - fractal dimension
KW - impinging jet injector
KW - power-law correlation
UR - https://www.scopus.com/pages/publications/85045472164
U2 - 10.1177/0954406218756937
DO - 10.1177/0954406218756937
M3 - 文章
AN - SCOPUS:85045472164
SN - 0954-4062
VL - 233
SP - 173
EP - 178
JO - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
JF - Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science
IS - 1
ER -