Sliding behavior of droplet on a hydrophobic surface with hydrophilic cavities: A simulation study

Yong, K.W. and Ganesan, Poo Balan and Kazi, Md Salim Newaz and Ramesh, Sathyadeepak and Badruddin, Irfan Anjum and Mubarak, Nabisab Mujawar (2018) Sliding behavior of droplet on a hydrophobic surface with hydrophilic cavities: A simulation study. Physics of Fluids, 30 (12). p. 122006. ISSN 1070-6631

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Official URL: https://doi.org/10.1063/1.5063857

Abstract

This paper presents a detailed computational fluid dynamics simulation study on water droplet mobility and cavity fillings resulting from a sliding droplet on a titled surface or substrate with round shaped cavities in a serial arrangement. The effects of different hydrophobicity (or contact angle) values for cavity and non-cavity surfaces, cavity depths, cavity spacings, plate tilting angles, and initial droplet volumes on its mobility were investigated. The findings are reported in terms of the total number of filled cavities, its duration, and the average volume of droplet per cavity. This study can be useful for the design and development of the passive microfluidics related devices and applications.

Item Type: Article
Uncontrolled Keywords: Computational fluid dynamics; Contact angle; Hydrophobicity; Surface chemistry
Subjects: T Technology > TJ Mechanical engineering and machinery
Divisions: Faculty of Engineering
Depositing User: Ms. Juhaida Abd Rahim
Date Deposited: 12 Feb 2019 01:57
Last Modified: 12 Feb 2019 01:57
URI: http://eprints.um.edu.my/id/eprint/20262

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