Volume 11, Issue 4 (Journal of Control, V.11, N.4 Winter 2018)                   JoC 2018, 11(4): 47-55 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Zamani Mohiabadi M. A New Method for Measuring Contact Angle of Impacting Drop. JoC. 2018; 11 (4) :47-55
URL: http://joc.kntu.ac.ir/article-1-416-en.html
Reasearch Department of High Temperature Fuel Cell, Vali-e-Asr University of Rafsanjan, Rafsanjan, Iran
Abstract:   (3107 Views)

In this paper, a new image processing technique has been proposed to measure the contact angle of symmetric and asymmetric drops. In our proposed method, the contact angle is calculated by analyzing the side view image of the drop without needing any liquid parameters. The procedure of the technique is according to the secant technique coupled with a Gaussian weighted function, as follows: at the beginning the exact location of the contact points is obtained by Harris corner detector function, then a series of points are selected on the drop boundary near the contact points. In the third step, a set of contact angles are estimated by passing secant lines through the contact point and each of the boundary points. In the final step, a gaussian weighted average function is applied to the calculated angles to estimate the main contact angle. The contact angle measurement algorithm is verified by comparing its results with the obtained measurements of a recent standard study. High accuracy, usability for all ranges of contact angles, applicability to both symmetric and asymmetric drops and being fully automatic are other advantages of the presented method.

Full-Text [PDF 867 kb]   (2677 Downloads)    
Type of Article: Research paper | Subject: Special
Received: 2016/10/30 | Accepted: 2017/09/20 | ePublished ahead of print: 2017/11/11 | Published: 2017/11/11

References
1. R. Förch, H. Schönherr, A. Tobias, A. Jenkins, Surface Design: Applications In Bioscience And Nanotechnology, John Wiley & Sons, 2009.
2. J.T. Cieslinski, K. Krygier, Sessile Droplet Contact Angle Of Water–Al2o3, Water–Tio2 And Water–Cu Nanofluids, Experimental Thermal and Fluid Science, Vol. 59, pp.258–263, 2014. [DOI:10.1016/j.expthermflusci.2014.06.004]
3. F.M. Mancio Reis, P. Lavieille, M. Miscevic, Toward Enhancement Of Water Vapour Condensation Using Wettability Gradient Surface, Experimental Thermal and Fluid Science, Vol. 67, pp.70–74, 2015. [DOI:10.1016/j.expthermflusci.2014.11.001]
4. Z.-J. Wang, D.-J. Kwon, K.L. Devries, J.M. Park, Frost Formation And Anti-Icing Performance Of A Hydrophobic Coating On Aluminum, Experimental Thermal and Fluid Science, Vol.60, pp.132–137, 2015. [DOI:10.1016/j.expthermflusci.2014.09.003]
5. J.H. Moon, D.Y. Kim, S.H. Lee, Spreading And Receding Characteristics Of A Non-Newtonian Droplet Impinging On A Heated Surface, Experimental Thermal and Fluid Science, Vol.57, pp.94–101, 2014. [DOI:10.1016/j.expthermflusci.2014.04.003]
6. F. Salaun, E. Devaux, S. Bourbigot, P. Rumeau, Application Of Contact Angle Measurement To The Manufacture Of Textiles Containing Microcapsules, Textile research journal, Vol.79, pp.1202–1212, 2009. [DOI:10.1177/0040517508100724]
7. D. Biole,M. Wang, And V. Bertola, Assessment Of Direct Image Processing Methods To Measure The Apparent Contact Angle Of Liquid Drops, Experimental Thermal and Fluid Science, Vol.76, pp.296 - 305, 2016. [DOI:10.1016/j.expthermflusci.2016.04.006]
8. C. Della Volpe, D. Maniglio, M. Morra, S. Siboni, The Determination Of A 'Stable-Equilibrium' Contact Angle On Heterogeneous And Rough Surfaces, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol.206, pp.47–67, 2002. [DOI:10.1016/S0927-7757(02)00072-9]
9. A.B.D. Cassie, Contact Angles, Discussions of the Faraday Society, Vol.3, pp.11–16, 1948. [DOI:10.1039/df9480300011]
10. S. Baxter, Wetting And Contact-Angle Hysteresis, Nature, Vol.165, pp.198, 1950. [DOI:10.1038/165198a0]
11. K.H. Kang, How Electrostatic fields Change Contact Angle In Electro-Wetting, Langmuir, Vol.18, pp.10318–10322, 2002. [DOI:10.1021/la0263615]
12. J. B. Lee, N. Laan, K. G. de Bruin, G. Skantzaris, N. Shahidzadeh, D. Derome, J. Carmeliet, and D. Bonn, "Universal rescaling of drop impact on smooth and rough surfaces." Journal of Fluid Mechanics, Vol.786, pp.R4, 2015. [DOI:10.1017/jfm.2015.620]
13. L. Li, W. Kang, D. Ye, A Contact Angle Measurement Method For The Droplets In Ewod-Based Chips, In: Proceeding 2nd Ieee, Conference Nano/Micro Engineering Molecular System, Bangkok, Thailand, 16th–19th January, 2007. [DOI:10.1109/NEMS.2007.352203]
14. M. Bortolotti, M. Brugnara, C.D. Volpe, S. Siboni, Numerical Models For The Evaluation Of The Contact Angle From Axisymmetric Drop Profiles: A Statistic Comparison, Journal of colloid and interface science, Vol.336, pp.285–297, 2009. [DOI:10.1016/j.jcis.2009.03.055]
15. Skinner, F. K., Y. Rotenberg, And A. W. Neumann. "Contact Angle Measurements From The Contact Diameter Of Sessile Drops By Means Of A Modified Axisymmetric Drop Shape Analysis." Journal Of Colloid And Interface Science, Vol.130.1, pp.25-34, 1989. [DOI:10.1016/0021-9797(89)90074-X]
16. S.F. Chini, A. Amirfazli, A Method For Measuring Contact Angle Of Asymmetric And Symmetric Drops, Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol.388, pp.29–37, 2011. [DOI:10.1016/j.colsurfa.2011.08.001]
17. D. Biolè, V. Bertola, A Goniometric Mask To Measure Contact Angles From Digital Images Of Liquid Drops, Colloids Surf. Colloids and Surfaces A: Physicochemical and Engineering Aspects, Vol.467, pp.149–156, 2015. [DOI:10.1016/j.colsurfa.2014.10.060]
18. M. Piccardi, Background Subtraction Techniques: A Review, Systems, man and cybernetics, IEEE international conference on. Man Cybern, 2004.
19. C. Harris And M. Stephens, A Combined Corner And Edge Detector, Alvey vision conference, pp.147–151, 1988.

Add your comments about this article : Your username or Email:
CAPTCHA

Send email to the article author


© 2020 All Rights Reserved | Journal of Control

Designed & Developed by : Yektaweb