Jing Hou
(, ), Zhixin Zhu
(, ), Chengbiao Ma
(, ), Gaogfeng Wang
(, ), Elsayed Barakat
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Experimental study on spray characteristics of aviation kerosene RP-3 in a radial rotary atomizer
In this work, the spray behaviors of a rotary atomizer with round-shaped injection orifices are experimentally investigated to study the breakup mechanism and spray characteristics using RP-3 as the liquid fuel. The breakup process of the liquid is visualized by the backlight shadow imaging method, which also provides the measurements of liquid breakup length and penetration height. The injection mode of the liquid film is observed using the front-light illumination method. The droplet size and distribution are measured using the laser particle size analyzer at various radial locations. Three typical breakup modes are identified: the ligament breakup mode, bag breakup mode, and shear breakup mode. Aerodynamic Weber number (Wed) and momentum flux ratio (q) are used to elaborate the liquid breakup regimes. Results of droplet sizing indicate that the Sauter mean diameter decreases with a higher rotational speed and slightly varies with the volume flow rate. A correlation between liquid breakup modes and non-dimensional droplet size is established based on Wed and q. This study presents some significance for understanding the impacts of the rotational speed and volume flow rates on the spray performance of actual aviation fuels in rotary atomizers.
期刊介绍：
Acta Mechanica Sinica, sponsored by the Chinese Society of Theoretical and Applied Mechanics, promotes scientific exchanges and collaboration among Chinese scientists in China and abroad. It features high quality, original papers in all aspects of mechanics and mechanical sciences.
Not only does the journal explore the classical subdivisions of theoretical and applied mechanics such as solid and fluid mechanics, it also explores recently emerging areas such as biomechanics and nanomechanics. In addition, the journal investigates analytical, computational, and experimental progresses in all areas of mechanics. Lastly, it encourages research in interdisciplinary subjects, serving as a bridge between mechanics and other branches of engineering and the sciences.
In addition to research papers, Acta Mechanica Sinica publishes reviews, notes, experimental techniques, scientific events, and other special topics of interest.
Related subjects » Classical Continuum Physics - Computational Intelligence and Complexity - Mechanics
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