Biole, D, Wang, M and Bertola, V ORCID: 0000-0001-5357-6191
(2016)
Assessment of direct image processing methods to measure the apparent contact angle of liquid drops.
EXPERIMENTAL THERMAL AND FLUID SCIENCE, 76.
pp. 296-305.
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Abstract
Four methods to measure apparent contact angles of non-axisymmetric drops are analyzed critically. In particular, methods based on local edge interpolation or fitting are compared with direct image processing methods, based on image filtering with a suitable sampling mask. The methods performance is evaluated based on the dynamic contact angle of a dilute polymer solution drop impacting on a solid substrate. Results show that direct image processing methods yield an overall better performance, with a good compromise between measurement accuracy and computational cost, and have a limited dependence on the choice of parameters. Polynomial edge fitting yields the worst performance, both in terms of accuracy and in terms of computational cost.
Item Type: | Article |
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Uncontrolled Keywords: | Dynamic contact angle, Digital images, Non-axisymmetric drops |
Depositing User: | Symplectic Admin |
Date Deposited: | 08 Jan 2019 15:13 |
Last Modified: | 19 Jan 2023 01:07 |
DOI: | 10.1016/j.expthermflusci.2016.04.006 |
Related URLs: | |
URI: | https://livrepository.liverpool.ac.uk/id/eprint/3030933 |
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Assessment of direct image processing methods to measure the apparent contact angle of liquid drops. (deposited 08 Apr 2016 09:20)
- Assessment of direct image processing methods to measure the apparent contact angle of liquid drops. (deposited 08 Jan 2019 15:13) [Currently Displayed]