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Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Surface Properties of Synthesized Nanoporous Carbon and Silica Matrices

Published on: March 27, 2019

Method for predicting the wettability of micro-structured surfaces by continuum phase-field modelling.

Marina Provenzano¹, Francesco Maria Bellussi¹, Matteo Morciano¹

¹Department of Energy, Politecnico di Torino, Corso Duca degli Abruzzi 24, Torino, 10129, Italy.

|November 13, 2023

Summary

This study presents a validated protocol for evaluating micro-structured surface wettability using a phase-field model. It addresses challenges in simulating multi-phase flows and moving contact lines for improved surface design.

Keywords:

Additive manufacturing Diffuse-interface model Method for predicting the wettability of micro-structured surfaces by continuum phase-field modelling Phase-field model Sessile droplet Surface engineering Wettability

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Published on: October 21, 2018

Area of Science:

Fluid dynamics
Microfluidics
Materials science
Computational modeling

Background:

Numerical prediction of material properties is crucial for design but lacks standardized simulation methods.
Existing methods for fluid dynamics and microfluidics face implementation challenges and require trial-and-error approaches.
Simulating multi-phase flows and moving contact lines presents difficulties due to scale coupling.

Purpose of the Study:

To develop and validate a standardized protocol for evaluating the wettability of micro-structured surfaces.
To overcome the limitations of current simulation methodologies in surface design.
To provide a reliable method for assessing the physical consistency of simulation results.

Main Methods:

Utilizing a phase-field model, specifically the Cahn-Hilliard diffuse-interface model.
Investigating multi-phase flows and moving contact lines.
Developing a protocol for model parameter calibration, boundary condition selection, and result post-processing.

Main Results:

A validated protocol for evaluating wettability of micro-structured surfaces was successfully implemented.
The proposed method facilitates the investigation of moving contact lines in microfluidic systems.
Demonstrated a systematic approach to ensure the physical consistency of simulation outcomes.

Conclusions:

The developed protocol offers a standardized and reliable method for wettability evaluation.
This approach mitigates the trial-and-error bottleneck in microfluidic surface design.
The phase-field model, when implemented with the proposed protocol, provides robust insights into surface properties.