Citation

Abdul Ghaffar, Zulkifli and Kasolang, Salmiah and Abdul Hamid, Ahmad Hussein (2026) Preliminary Analysis of Swirl Effervescent Atomization Droplet Diameter Distribution. Journal of Engineering Technology and Applied Physics, 8 (1). p. 35. ISSN 2682-8383

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Abstract

A swirl effervescent atomizer capable of producing fine droplets with relatively low injection pressures. A critical aspect of atomization is the resultant droplet diameter distribution, which portrays the efficiency of the atomization process. Dimensional analysis was conducted to identify the most significant parameters influencing the droplet diameter distribution. Three dimensionless numbers were selected considering their importance, which are the liquid Reynolds number, Re, the gas Reynolds number, and the swirl chamber length to discharge orifice diameter ratio. A test rig was fabricated to test the atomizer. Water acts as the working fluid, and air acts as the atomization assistance. The resultant spray images were captured using the shadowgraph technique. The images were analysed for droplet diameter measurement. The liquid Reynolds number and gas Reynolds number were found to have a significant impact on the droplet diameter distribution, particularly with an increase in the percentage of fine droplets. However, the dependence of the droplet diameter distribution on the geometrical ratio is less significant. This result is important for a preliminary understanding of the swirl effervescent atomization mechanics.

Item Type:	Article
Uncontrolled Keywords:	Swirl effervescent atomization, Droplet diameter distribution, Reynolds number, Image analysis
Subjects:	T Technology > T Technology (General)
Divisions:	Others
Depositing User:	Ms Suzilawati Abu Samah
Date Deposited:	09 Jul 2026 04:31
Last Modified:	09 Jul 2026 04:32
URII:	http://shdl.mmu.edu.my/id/eprint/16364

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