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Title Effect of Superimposed Vibrations on Droplet Oscillation Modes in Prilling Process
Authors Pavlenko, Ivan Volodymyrovych  
Sklabinskyi, Vsevolod Ivanovych  
Piteľ, J.
Kuric, I.
Ivanov, Vitalii Oleksandrovych  
Skydanenko, Maksym Serhiiovych  
Liaposhchenko, Oleksandr Oleksandrovych  
Keywords prilling
droplet deformation
surface tension
superimposed vibrations
Type Article
Date of Issue 2020
Publisher MDPI
License Creative Commons Attribution 4.0 International License
Citation Pavlenko, I.; Sklabinskyi, V.; Piteľ, J.; Židek, K.; Kuric, I.; Ivanov, V.; Skydanenko, M.; Liaposhchenko, O. Effect of Superimposed Vibrations on Droplet Oscillation Modes in Prilling Process. Processes 2020, 8, 566.
Abstract This article was aimed to solve an urgent problem of ensuring quality for prilling processes in vibrational prilling equipment. During the research, the need for the application of vibrational prilling to create a controlled impact on the process of jet decay on droplets with the proper characteristics was substantiated. Based on the experimental and theoretical studies of the process of decay of a liquid jet into drops, axisymmetric droplet oscillation modes for the different frequencies were observed. Frequency ranges of transition between modes of decay of a jet into drops were obtained. As a result, the mathematical model of the droplet deformation was refined. The experimental research data substantiated this model, and its implementation allowed determining the analytical dependencies for the components of the droplet deformation velocity. The proposed model explains the existence of different droplet oscillation modes depending on the frequency characteristics of the superimposed vibrational impact. Based on an analytical study of the droplet deformation velocity components, the limit values of the characteristics defining the transition between the different droplet oscillation modes were discovered. Analytical dependencies were also obtained to determine the diameter of the satellites and their total number.
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