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Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Microtensiometer for Confocal Microscopy Visualization of Dynamic Interfaces

Published on: September 9, 2022

Comparison between two capillary forces models.

Pierre Lambert¹, Alexandre Chau, Alain Delchambre

¹BEAMS Department, Université libre de Bruxelles CP 165/14, 50 Av FD Roosevelt, 1050 Bruxelles, Belgium. pierre.lambert@ulb.ac.be

Langmuir : the ACS Journal of Surfaces and Colloids

|March 5, 2008

Summary

This study proves the equivalence of two capillary force calculation methods: the energetic approach and the meniscus profile method. These findings are validated through analytical, numerical, and experimental evidence for miniaturized systems.

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Wicking Tests for Unidirectional Fabrics: Measurements of Capillary Parameters to Evaluate Capillary Pressure in Liquid Composite Molding Processes

Wicking Tests for Unidirectional Fabrics: Measurements of Capillary Parameters to Evaluate Capillary Pressure in Liquid Composite Molding Processes

Published on: January 27, 2017

Area of Science:

Physics
Fluid Mechanics
Surface Science

Background:

Surface tension is critical in microscale phenomena.
Numerous capillary force models exist, necessitating validation.
Understanding capillary forces is key for miniaturization technologies.

Purpose of the Study:

To demonstrate the equivalence between the energetic method and the meniscus profile method for capillary force computation.
To provide a unified understanding of capillary force calculation at equilibrium.
To validate computational models with theoretical and experimental data.

Main Methods:

Derivation of total interfacial energy (energetic method).
Calculation using pressure and tension terms from meniscus profile (Laplace equation).
Analytical proof for prism-plate configuration.
Numerical simulations.
Experimental validation with millimetric spheres.

Main Results:

Equivalence established between the energetic and meniscus profile methods.
Consistent results across analytical, numerical, and experimental approaches.
Validation of capillary force models in equilibrium conditions.

Conclusions:

The energetic and meniscus profile methods are interchangeable for capillary force calculations.
The study provides robust validation for these widely used computational techniques.
Findings support accurate modeling of capillary phenomena in miniaturized devices.