| Authors |
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| Publication date |
10-05-2021
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| Journal |
Journal of Fluid Mechanics
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| Article number |
A21
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| Volume | Issue number |
914
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| Number of pages |
18
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| Organisations |
-
Faculty of Science (FNWI) - Institute of Physics (IoP)
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| Abstract |
The spreading under surface tension and gravity of a droplet of yield-stress fluid over a thin film of the same material is studied. The droplet converges to a final equilibrium shape once the driving stresses inside the droplet fall below the yield stress. Scaling laws are presented for the final radius and complemented with an asymptotic analysis for shallow droplets. Moreover, numerical simulations using the volume-of-fluid method and a regularized constitutive law, and experiments with an aqueous solution of Carbopol, are presented.
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| Document type |
Article
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| Note |
With supplementary file
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| Language |
English
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| Published at |
https://doi.org/10.1017/jfm.2020.886
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