| Citation: |
CHEN J X, GUO K K, XU B B. Experimental study on dynamic thermometry and water-ice interface visualization during droplet freezing[J]. Journal of Experiments in Fluid Mechanics, doi: 10.11729/syltlx20240088.
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The mechanism of droplet icing on superhydrophobic surfaces is an important subject of developing passive anti-icing strategies. Dynamic properties of phase change and thermal parameters during droplet icing on different superhydrophobic surfaces are important factors for the characterization of surface anti-icing abilities. Based on the two-color planar laser induced fluorescence (2c−PLIF) principles, a new visualization method for droplet freezing on superhydrophobic surfaces is proposed in this work. Dynamic thermometry of the liquid phase and water-ice interface tracing during small droplet freezing on the subcooled porous coating surface are studied. According to the temperature gradient analysis, the dynamic water-ice interface, droplet cross-section, and the temperature profile of the illuminating surface are calculated and presented. Finally, the influence of heat transfer processes on the freezing behavior of ambient-temperature droplets icing on the porous coated surfaces is also addressed.
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