Wetting behavior in the inertial phase of droplet impacts onto sub-millimeter microstructured surfaces
Diamond-shaped spreading patterns with edges aligned at 45<sup>∘</sup> to the structure pattern are observed. A transition between top-dominated (circular) spreading and diamond spreading occurs depending on the structure size and impact velocity. Groove intersections can act as flow dividers, causing spreading along a path with 90<sup>∘</sup> bends. For large structure sizes and impact velocities fluid jets can pass through the structures uninhibited.
Authors
- Bernhard Weigand (ORCID: https://orcid.org/0000-0002-1469-079X)
- Patrick Palmetshofer (ORCID: https://orcid.org/0000-0002-1400-3873)
- A. Geppert (ORCID: https://orcid.org/0000-0003-1526-1978)
- Kathrin Schulte (ORCID: https://orcid.org/0000-0001-8650-5840)
- Gianpietro Cossali (ORCID: https://orcid.org/0000-0003-2550-6780)
- Jonathan Wurst
Institutions
- University of Stuttgart (DE)
- University of Bergamo (IT)
Publication Details
- Journal
- Journal of Colloid and Interface Science
- Published
- 2024-11-22
- DOI
- https://doi.org/10.1016/j.jcis.2024.11.154
- Citations
- 16
- Primary Topic
- Fluid Dynamics and Heat Transfer
- Type
- article
- Field-Weighted Citation Impact
- 6.00