10.48788/DVUA/A4RRANOstroha, RuslanRuslanOstroha0000-0003-0045-3416Sumy State UniversityZabitsky, DmitryDmitryZabitsky57704151100Sumy State UniversityBataltsev, YevhenYevhenBataltsev0000-0003-2035-2014Sumy State UniversityVibration-Assisted Capillary Jet Breakup in Melt Granulation: Factorial Experiment, Linear Stability Analysis and CFD Simulation DataDataverseUA2026EngineeringPrillingFluid thread breakupUreaGranulationPlateau-Rayleigh instabilityComputational fluid dynamicsFactorial experimentVibration excitationMonodisperse dropletsOstroha, RuslanRuslanOstrohaSumy State University2026-09-222026-09-22Experimental data10.3390/pr140710778159465986925352008551196841872621157911050829334665128640148020735297250106image/pngimage/pngimage/pngimage/pngimage/pngimage/pngimage/pngimage/pngimage/pngtext/plaintext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-valuestext/tab-separated-values1.0CC BY 4.0<p>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.</p>
<b>The dataset includes:</b>
<ul>
<li><b>Factorial design:</b> 2<sup>2</sup> 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.</li>
<li><b>Mathematical model (Maple):</b> input parameters, dimensionless numbers (Oh, We, Re, Ca), linear stability results and droplet diameters by five theoretical approaches for a urea melt jet (D<sub>j</sub> = 1.2 mm, u = 4.35 m/s, T ≈ 133 °C), with sensitivity analysis.</li>
<li><b>Experiment and CFD (water):</b> high-speed images and CFD results for single-point and combined (dual-frequency, f<sub>2</sub>/f<sub>1</sub> = 2.05) vibration excitation, including Sauter mean diameter (SMD) and coefficient of variation (COV).</li>
</ul>
<p>Combined vibration excitation reduced the COV of droplet diameter from 18.6–20.6% to 6.3–8.4%, approaching monodisperse droplet formation.</p>
<p><b>Setup:</b> vibration granulator with a disc actuator (diameter 100 mm, thickness 1 mm), vibration amplitude 100 µm, excitation frequencies 220–780 Hz.</p>Maple, 2024.2ANSYS CFX, 2022 R2The 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).Ministry of Education and Science of Ukraine0125U000500