TY - JOUR
T1 - Creation of prompt and thin-sheet splashing by varying surface roughness or increasing air pressure
AU - Latka, Andrzej
AU - Strandburg-Peshkin, Ariana
AU - Driscoll, Michelle M.
AU - Stevens, Cacey S.
AU - Nagel, Sidney R.
PY - 2012/7/31
Y1 - 2012/7/31
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=84864490158&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84864490158&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.109.054501
DO - 10.1103/PhysRevLett.109.054501
M3 - Article
C2 - 23006177
AN - SCOPUS:84864490158
VL - 109
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 5
M1 - 054501
ER -