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Drop Behavior on Micro-Structured Superhydrophobic Coating
- Source :
- فصلنامه علوم و فناوری فضایی, Vol 15, Iss ویژه نامه انگلیسی, Pp 25-33 (2022)
- Publication Year :
- 2022
- Publisher :
- Aerospace Research Institute, 2022.
-
Abstract
- Superhydrophobic coatings can be made by creating a micro-sized structure on a surface providing super-repellent properties which has many applications in aerospace, defense, automotive, biomedical and engineering. Numerical simulation of drop dynamics and motion on a superhydrophobic surface helps us understand control and building surface textures and find optimum micro structured coatings of maximum hydrophobicity. In the present work, the dynamics of drops on superhydrophobic inclined micro-structured surfaces is studied, using a finite element method. Effect of microstructures on droplet behavior on a superhydrophobic surface is investigated using different microstructures. The governing equations and important dimensionless numbers are described and a numerical algorithm is introduced. The validation of the numerical algorithm is performed by simulation of drop motion attached to an inclined surface. In addition, droplet movement on the micro structured surface is numerically simulated on smooth and microstructure surfaces in the same conditions. Comparison of the results shows the effect of microstructure coating on the surface hydrophobicity properties.
Details
- Language :
- Persian
- ISSN :
- 20084560 and 24234516
- Volume :
- 15
- Issue :
- ویژه نامه انگلیسی
- Database :
- Directory of Open Access Journals
- Journal :
- فصلنامه علوم و فناوری فضایی
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.b5cf63b9d4c437cbc587f4ffb06b06a
- Document Type :
- article
- Full Text :
- https://doi.org/10.30699/jsst.2020.1241