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Related Experiment Video

Updated: Nov 24, 2025

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Scalable Stamp Printing and Fabrication of Hemiwicking Surfaces

Published on: December 18, 2018

Predicting Hemiwicking Dynamics on Textured Substrates.

Bharath Natarajan¹, Aditya Jaishankar¹, Mark King¹

¹Corporate Strategic Research, ExxonMobil Research and Engineering Co., 1545 U.S. 22, Annandale, New Jersey 08801, United States.

Langmuir : the ACS Journal of Surfaces and Colloids

|December 21, 2020

Summary

This summary is machine-generated.

A new analytical model accurately predicts liquid transport on textured surfaces, crucial for applications like oil recovery and thermal management. This model offers improved accuracy and design guidance for surface microstructures.

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Area of Science:

Fluid Dynamics
Surface Science
Materials Science

Background:

Predicting liquid transport on textured surfaces is vital for optimizing various industrial processes.
Existing models often lack accuracy or broad applicability for complex surface geometries.

Purpose of the Study:

To develop a fully analytical model for predicting liquid propagation coefficients in micropillar arrays.
To validate the model against experimental data and compare its accuracy with existing methods.

Main Methods:

Balancing capillary driving force and viscous resistive force.
Solving the Navier-Stokes equation for representative channels.
Validating against experimental hemiwicking coefficients and lattice Boltzmann simulations.

Main Results:

The analytical model shows excellent agreement with experimental data.
The model demonstrates improved accuracy over previously proposed methods.
Applicability across a broad range of geometries confirmed via simulations.

Conclusions:

The developed analytical model provides a reliable tool for predicting liquid transport on textured surfaces.
Offers a pathway for designing optimal surface chemistry and microstructures for enhanced liquid propagation.