Vibration-Assisted Capillary Jet Breakup in Melt Granulation: Factorial Experiment, Linear Stability Analysis and CFD Simulation Data

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Vibration-Assisted Capillary Jet Breakup in Melt Granulation: Factorial Experiment, Linear Stability Analysis and CFD Simulation Data
Ostroha, Ruslan; Zabitsky, Dmitry; Bataltsev, Yevhen, 2026, "Vibration-Assisted Capillary Jet Breakup in Melt Granulation: Factorial Experiment, Linear Stability Analysis and CFD Simulation Data", https://doi.org/10.48788/DVUA/A4RRAN, DataverseUA, V1, UNF:6:+GZDJKZsZ7jIV3hhMFsv5w== [fileUNF]
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Description

This dataset contains experimental, calculated and numerical (CFD) data on capillary jet breakup in a vibration granulator (prilling), supporting the optimization of melt granulation processes.

The dataset includes:
  • Factorial design: 22 full factorial experiment on the influence of actuator plate position (5–30 mm) and liquid column height (120–450 mm) on the actuator operating frequency.
  • Mathematical model (Maple): input parameters, dimensionless numbers (Oh, We, Re, Ca), linear stability results and droplet diameters by five theoretical approaches for a urea melt jet (Dj = 1.2 mm, u = 4.35 m/s, T ≈ 133 °C), with sensitivity analysis.
  • Experiment and CFD (water): high-speed images and CFD results for single-point and combined (dual-frequency, f2/f1 = 2.05) vibration excitation, including Sauter mean diameter (SMD) and coefficient of variation (COV).

Combined vibration excitation reduced the COV of droplet diameter from 18.6–20.6% to 6.3–8.4%, approaching monodisperse droplet formation.

Setup: vibration granulator with a disc actuator (diameter 100 mm, thickness 1 mm), vibration amplitude 100 µm, excitation frequencies 220–780 Hz.

(2026-09-22)
Subject Engineering
Keyword Prilling, Fluid thread breakup, Urea, Granulation, Plateau-Rayleigh instability, Computational fluid dynamics, Factorial experiment, Vibration excitation, Monodisperse droplets
Related Publication Sklabinskyi, V., Liaposhchenko, O., Ostroha, R., Zabitsky, D., Myshchenko, D., Kozii, I., & Bocko, J. (2026). Theoretical Analysis of Molten Jet Breakup in a Rotating Granulation System Under Unforced Conditions. Processes, 14(7), 1077. doi: 10.3390/pr14071077
Notes The dataset consists of 8 CSV tables (comma-separated, UTF-8, decimal point), 9 PNG images and README.txt with a detailed description of each file, abbreviations and methodology. File naming convention: Table01–Table08 – numerical data (factorial experiment, model calculations, CFD results, granule fractions). Fig01–Fig03 – plots from the mathematical model (urea melt). Fig04, Fig06 – high-speed images of jet breakup (water, grid step 4 mm). Fig05, Fig07–Fig09 – CFD results for different vibration regimes (water).
License/Data Use Agreement

CC BY 4.0

1 to 10 of 18 Files
Fig01_Growth_Rate_Spectrum.png
Fig01_Growth_Rate_Spectrum.png
PNG Image - 79.7 KB
Published Sep 22, 2026
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MD5: 6ff2c4f54d10a2de10576958377435ea
Disturbance growth rate vs. wavenumber.
Data
Fig02_Droplet_Diameter_vs_Ohnesorge.png
Fig02_Droplet_Diameter_vs_Ohnesorge.png
PNG Image - 64.4 KB
Published Sep 22, 2026
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MD5: 30ef3bd6ab021e0c78534d528f85d9c6
Droplet diameter vs. Ohnesorge number.
Data
Fig03_Jet_Profile_Most_Unstable_Mode.png
Fig03_Jet_Profile_Most_Unstable_Mode.png
PNG Image - 90.4 KB
Published Sep 22, 2026
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MD5: 8a18369f20a6bb36e95ef2c481ccdab6
Jet profile for the most unstable disturbance.
Data
Fig04_Photo_Single_380Hz_H380.png
Fig04_Photo_Single_380Hz_H380.png
PNG Image - 196.1 KB
Published Sep 22, 2026
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MD5: e5bb3a6344e7ce664f407f1c89ef96a4
High-speed image of jet breakup, single-point excitation 380 Hz (water).
Data
Fig05_CFD_Single_380Hz_H380.png
Fig05_CFD_Single_380Hz_H380.png
PNG Image - 116.9 KB
Published Sep 22, 2026
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MD5: 05c6ec932007c82dca425f4c796ab93c
CFD of jet breakup, single-point excitation 380 Hz.
Data
Fig06_Photo_Dual_380-780Hz_H380.png
Fig06_Photo_Dual_380-780Hz_H380.png
PNG Image - 182.9 KB
Published Sep 22, 2026
0 Downloads
MD5: 5354b1e2d0cca999f9dcc02e8c2eee02
High-speed image of jet breakup, combined excitation 380 + 780 Hz (water).
Data
Fig07_CFD_Dual_380Hz_ratio2.05_H380.png
Fig07_CFD_Dual_380Hz_ratio2.05_H380.png
PNG Image - 113.1 KB
Published Sep 22, 2026
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MD5: 0e09d5dd7a2f254701b66b169870ce3d
CFD of jet breakup, combined excitation, f1 = 380 Hz, f2/f1 = 2.05.
Data
Fig08_CFD_Single_220Hz_H280.png
Fig08_CFD_Single_220Hz_H280.png
PNG Image - 102.6 KB
Published Sep 22, 2026
0 Downloads
MD5: af16488588d2e144c419e2ce7a14f58b
CFD of jet breakup, single-point excitation 220 Hz.
Data
Fig09_CFD_Dual_220Hz_ratio2.05_H280.png
Fig09_CFD_Dual_220Hz_ratio2.05_H280.png
PNG Image - 91.2 KB
Published Sep 22, 2026
0 Downloads
MD5: 50739c986d4343f54101385d24b02960
CFD of jet breakup, combined excitation, f1 = 220 Hz, f2/f1 = 2.05.
Data
README.txt
Plain Text - 6.4 KB
Published Sep 22, 2026
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MD5: a4cd343c6dc34f7abae223cfa5b0e7b9
Description of the dataset, authors, files and methodology.
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