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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses

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A Phase-Field Model for Wet Snow Metamorphism.

Adrian Moure¹, Xiaojing Fu¹

¹Department of Mechanical and Civil Engineering, California Institute of Technology, Pasadena, California 91125-0002, United States.

Crystal Growth & Design

|November 7, 2024

Summary

This study introduces a pore-scale phase-field model for wet snow metamorphism, simulating ice, water, and vapor interactions. The model reveals how humidity, temperature, and melt content influence snow microstructure dynamics.

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Last Updated: Jun 8, 2025

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Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets

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Published on: May 15, 2017

Area of Science:

Physics
Earth Science
Materials Science

Background:

Snow microstructure dictates key properties like strength and reflectivity.
Snow metamorphism, driven by environmental gradients, continuously alters snow structure.
Wet snow metamorphism involves complex phase transitions between ice, liquid water, and water vapor near melting point.

Purpose of the Study:

To develop a pore-scale phase-field model for wet snow metamorphism.
To simulate and analyze the simultaneous phase changes: sublimation, evaporation, and melting.
To investigate the influence of environmental factors on snow microstructure evolution.

Main Methods:

Proposed a novel three-phase (ice-water-vapor) pore-scale phase-field model.
Formulation allows tracking temperature and water vapor concentration.
Validated by recovering two-phase models when a phase is absent.

Main Results:

2D simulations demonstrate the impact of humidity and temperature on pore-scale wet snow metamorphism dynamics.
Liquid melt content's role in controlling metamorphism dynamics was explored, contrasting with dry snow.
The model successfully captures phase transitions and their effect on snow structure.

Conclusions:

The developed phase-field model accurately simulates wet snow metamorphism.
Environmental factors significantly influence snow microstructure evolution at the pore scale.
The model offers a foundation for studying water phase transitions in various systems.