Abstract
A liquid drop impacting a solid surface may splash either by emitting a thin liquid sheet that subsequently breaks apart or by promptly ejecting droplets from the advancing liquid-solid contact line. Using high-speed imaging, we show that surface roughness and air pressure influence both mechanisms. Roughness inhibits thin-sheet formation even though it also increases prompt splashing at the advancing contact line. If the air pressure is lowered, droplet ejection is suppressed not only during thin-sheet formation but also for prompt splashing.
| Original language | English (US) |
|---|---|
| Article number | 054501 |
| Journal | Physical review letters |
| Volume | 109 |
| Issue number | 5 |
| DOIs | |
| State | Published - Jul 31 2012 |
ASJC Scopus subject areas
- Physics and Astronomy(all)
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Latka, A., Strandburg-Peshkin, A., Driscoll, M. M., Stevens, C. S., & Nagel, S. R. (2012). Creation of prompt and thin-sheet splashing by varying surface roughness or increasing air pressure. Physical review letters, 109(5), [054501]. https://doi.org/10.1103/PhysRevLett.109.054501