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Related Experiment Video

Updated: Oct 8, 2025

Parametric Optimization Design Method for Friction Plates of Hydro-Viscous Clutches

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Published on: July 22, 2025

Implementing Contact Angle Hysteresis in Moving Mesh-Based Two-Phase Flow Numerical Simulations.

Zheren Cai^1,2, Yanlin Song^1,2

¹Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun North First Street 2, 100190 Beijing, P. R. China.

|January 5, 2022

Summary

This summary is machine-generated.

This study presents a robust numerical model for simulating contact angle hysteresis, crucial for understanding fluid behavior in nature and industry. The method accurately captures contact line dynamics across various geometries.

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Area of Science:

Fluid dynamics
Surface science
Computational modeling

Background:

Contact angle hysteresis is prevalent in natural phenomena and critical for industrial processes.
Accurate simulation of contact line dynamics is essential for predicting fluid behavior on surfaces.

Purpose of the Study:

To develop and validate a numerical model for simulating contact angle hysteresis.
To demonstrate the model's capability in handling complex fluid-solid interactions.

Main Methods:

A moving mesh two-phase flow method was employed.
The model incorporates a displacement-based penalty method and a state variable method.
Simulation of pinning, moving, and repinning of contact lines was achieved.

Main Results:

The numerical model successfully simulated contact angle hysteresis.
The method proved robust for both two-dimensional and three-dimensional geometries.
A fluid-solid interaction model demonstrated the method's performance with a fluctuating cylinder on water.

Conclusions:

The presented numerical model offers a robust approach for simulating contact angle hysteresis.
This method provides a valuable tool for analyzing fluid behavior in diverse applications.
The model's versatility extends to complex scenarios like fluid-structure interactions.