@article{Che:2015:10.1103/PhysRevE.92.023032,
author = {Che, Z and Deygas, A and Matar, OK},
doi = {10.1103/PhysRevE.92.023032},
journal = {Physical Review E},
title = {Impact of droplets on inclined flowing liquid films},
url = {http://dx.doi.org/10.1103/PhysRevE.92.023032},
volume = {92},
year = {2015}
}

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TY  - JOUR
AB  - The impact of droplets on an inclined falling liquid film is studied experimentally using high-speed imaging.The falling film is created on a flat substrate with controllable thicknesses and flow rates. Droplets with differentsizes and speeds are used to study the impact process under various Ohnesorge and Weber numbers, and filmReynolds numbers. A number of phenomena associated with droplet impact are identified and analyzed, suchas bouncing, partial coalescence, total coalescence, and splashing. The effects of droplet size, speed, as well thefilm flow rate are studied culminating in the generation of an impact regime map. The analysis of the lubricationforce acted on the droplet via the gas layer shows that a higher flow rate in the liquid film produces a largerlubrication force, slows down the drainage process, and increases the probability of droplet bouncing. Our resultsdemonstrate that the flowing film has a profound effect on the droplet impact process and associated phenomena,which are markedly more complex than those accompanying impact on initially quiescent films.
AU  - Che,Z
AU  - Deygas,A
AU  - Matar,OK
DO  - 10.1103/PhysRevE.92.023032
PY  - 2015///
SN  - 1539-3755
TI  - Impact of droplets on inclined flowing liquid films
T2  - Physical Review E
UR  - http://dx.doi.org/10.1103/PhysRevE.92.023032
UR  - http://hdl.handle.net/10044/1/27190
VL  - 92
ER  - 

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