年間 12 号発行
ISSN 印刷: 1044-5110
ISSN オンライン: 1936-2684
Indexed in
DIRECT SIMULATIONS OF LIQUID SHEET BREAKUP IN PLANAR GAS BLAST ATOMIZATION
要約
High fidelity simulations offer a promising way to study primary breakup of liquid sheets. The present work aims at simulating liquid sheet breakup under the assumption of a 2D planar prefilming gas blast atomization. An in-house finite volume method based solver has been used in the study. Interface tracking is done using volume of fluid (VOF) methodology. The study analyzes the effect of parameters such as inner core gas velocity, outer gas velocity, and liquid sheet thickness on the atomization process. The spray is characterized in terms of liquid sheet breakup length, spray cone angle, and droplet size distribution. The obtained droplet size distribution closely represents lognormal distribution. The inner core gas velocity was found to have significant impact on liquid sheet breakup length and droplet mean diameter within the parametric range of this study. Additionally, increase in liquid sheet thickness has shown an increase in the sheet breakup length.
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Dasgupta Debayan, Nath Sujit, Bhanja Dipankar, A study on dual role of viscosity on the stability of a viscous planar liquid sheet surrounded by inviscid gas streams of equal velocities, and prediction of resulting droplet distribution using maximum entropy formulation, Physics of Fluids, 31, 7, 2019. Crossref
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Shen Lixin , Su Hao , Qin La , Xing Fei, Chan Shining , NUMERICAL STUDY ON THE EFFECTS OF DUAL-LAYER LIQUID SHEETS MERGING ON PRIMARY BREAKUP IN DUAL-ORIFICE NOZZLES , Atomization and Sprays, 32, 9, 2022. Crossref