Work

Stood-up drop to determine receding contact angles

Year: 2025

Type: article

Abstract: ) closely resembles the receding contact angle measured by goniometry. Our method is suitable for a wide variety of surfaces from hydrophilic to hydrophobic, overcoming typical complications of goniometry such as needle-induced distortion of the drop shape, and it reduces user dependence. We delineate when the receding contact angle can be obtained by the stood-up method using volume-of-fluid (VoF) simulations that systematically vary viscosity, contact angle, and deposited drop volume. Finally, we provide simple scaling criteria to predict when the stood-up drop technique works.

Source: Soft Matter

DOI: 10.1039/d5sm00985e

Authors: Diego Díaz, Aman Bhargava, Franziska Walz, Azadeh Sharifi, Sajjad Summaly, Rüdiger Berger, Michael Kappl, Hans-Jürgen Butt, Detlef Lohse, Thomas Willers, Vatsal Sanjay, Doris Vollmer

Institutions: KTH Royal Institute of Technology, Max Planck University of Twente Center for Complex Fluid Dynamics, University of Twente, Max Planck Institute for Polymer Research, Max Planck Institute for Dynamics and Self-Organization, Durham University

Language: English

Topic: Fluid Dynamics and Heat Transfer

Subfield: Computational Mechanics

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Funders: Deutsche Forschungsgemeinschaft, Nederlandse Organisatie voor Wetenschappelijk Onderzoek, Max-Planck-Gesellschaft

Awards: Dynamik FlüssigFlüssigElastischer Dreiphasenlinien, G6804922973, Soft Contact

OpenAlex ID: W4417047993

FWCI: 0.45

Cites: 55

Cited by: 1

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