The impact of a solid object on a free liquid surface is quite complex. This problem has challenged researchers for centuries and remains of interest today. Recently Duez et al. [1] published experimental results on the splash when a solid sphere enters a liquid. Surprisingly, a small change in the surface chemistry of the object can turn a big splash into an inconspicuous disappearance and vice versa. We study this problem by solving the Navier-Stokes together with the Cahn-Hilliard equations, [2, 3], which allows us to simulate the motion of a free air-water surface in detail, in the presence of surface tension and dynamic wetting. Quantitative computational modeling of dynamic wetting is difficult in itself, but here the use of this tool allows us to study in detail how the wetting properties determine whether a splash appears or not. Our simulated results are compared with the experiments of Duez et al.
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ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels
June 23–25, 2008
Darmstadt, Germany
Conference Sponsors:
- Nanotechnology Institute
ISBN:
0-7918-4834-5
PROCEEDINGS PAPER
Modelling the Influence of Wetting Properties on the Solid Liquid Impact
Minh Do-Quang,
Minh Do-Quang
Royal Institute of Technology, Stockholm, Sweden
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Gustav Amberg
Gustav Amberg
Royal Institute of Technology, Stockholm, Sweden
Search for other works by this author on:
Minh Do-Quang
Royal Institute of Technology, Stockholm, Sweden
Gustav Amberg
Royal Institute of Technology, Stockholm, Sweden
Paper No:
ICNMM2008-62216, pp. 1915-1917; 3 pages
Published Online:
June 11, 2009
Citation
Do-Quang, M, & Amberg, G. "Modelling the Influence of Wetting Properties on the Solid Liquid Impact." Proceedings of the ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2008 6th International Conference on Nanochannels, Microchannels, and Minichannels. Darmstadt, Germany. June 23–25, 2008. pp. 1915-1917. ASME. https://doi.org/10.1115/ICNMM2008-62216
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