| Issue |
E3S Web Conf.
Volume 321, 2021
XIII International Conference on Computational Heat, Mass and Momentum Transfer (ICCHMT 2021)
|
|
|---|---|---|
| Article Number | 01016 | |
| Number of page(s) | 5 | |
| Section | Fluid | |
| DOI | https://doi.org/10.1051/e3sconf/202132101016 | |
| Published online | 11 November 2021 | |
Effects of roughness and size ratio on alumina fluid deposition patterns
Tianjin University of Commerce, Tianjin Key Laboratory of Refrigeration Technology, Tianjin, 300134, P. R. China
* Corresponding author: lbtjcu@tjcu.edu.cn
In this paper, the deposition patterns of alumina nanofluids with different particle size ratios (10 nm:30 nm = 0:1, 1:9, 3:7, 5:5 and 1:0) evaporated on different roughness (0.1, 0.15 and 0.2μm) substrates were studied. It was found that the surface roughness of substrates and particle size ratio in solution were important factors affecting the height of deposition rings and the morphology of deposition patterns. A dimensionless criterion number Ajw was defined to represent the deposition patterns. The Ajw number increases with the increase of the roughness of the floor and the proportion of small particles in the solution.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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