Dendritic Growth Model Involving Interface Kinetics for Supercooled Water.

Area of Science:

• Physics of phase transitions
• Materials science
• Fluid dynamics

Background:

• Dendritic ice growth in supercooled water is crucial for understanding weather phenomena and engineering applications.
• Existing models like Langer-Müller-Krumbhaar (LM-K) show limitations at higher supercoolings.

Purpose of the Study:

• To develop a modified dendritic ice growth model that accurately predicts ice growth velocity in supercooled water across a wider range of supercoolings.
• To incorporate interface kinetics into the LM-K model to address discrepancies at high supercoolings.

Main Methods:

• Theoretical modification of the LM-K dendritic growth model by including interface kinetics.
• Experimental measurement of ice dendritic growth velocity in supercooled water droplets.
• Fitting the interface kinetics factor using experimental data within the modified model framework.

Main Results:

• The modified model shows good agreement with experimental data up to 25 K of supercooling, outperforming the original LM-K model.
• The model accurately describes dendritic ice growth in the high-supercooling regime.

Conclusions:

• The modified LM-K model with interface kinetics provides an improved prediction of dendritic ice growth velocity.
• This enhanced model offers a reliable tool for engineering studies involving icing phenomena.